Fuel Saving Tip: Tire Pressure Saves Fuel In Blue Bell
Posted June 12, 2013 9:22 AM
Under-inflated tires waste gas for lots of folks in the Blue Bell area. Think how hard it is to walk in sand – you just have to work harder because of the resistance. When your tires don't have enough air in them, their rolling resistance is dramatically increased and it simply takes more gas to get from Ambler to Blue Bell.
Always check your tire pressure when you gas up at one of our local Blue Bell service stations. If they're low – even just a little bit – bring them up to proper pressure. There's a sticker on the inside of your driver's door that gives the manufacturer's recommended tire pressure.
And don't rely on your tire pressure monitoring system to alert you to when you need more air. The TPMS system is set to warn you when pressure drops twenty percent below recommendations. That's severely under inflated and you needed more air a long time ago. And if you have a slow leak – get it fixed right away at Ambler Tire & Auto Service.
Get some air and save some gas.
Posted in the Tires and Wheels category
Ambler Tire Repair
Posted March 8, 2013 9:48 AM
Most folks around Ambler have had a flat tire. You know it’s inconvenient and a pain. Our tires are important. Keeping them in good working order isn’t just a big safety issue – it also has a financial impact. With high gas prices, we’ve all heard about the importance of keeping proper tire pressure to save on gas. In addition, proper inflation promotes even tread wear so your tires last longer.
There’s another danger to under-inflated tires. Low tire pressure puts added stress on the structure of the tire itself, causing it to break down prematurely. Also, under-inflated tires generate more heat which also reduces tire life. So get those slow leaks fixed quickly – don’t just keep airing them up every few days. You want to avoid serious tire damage.
Tires can also be damaged by road hazards in and around Ambler. Punctures, cuts and impacts on curbs or potholes can also cause damage that could lead to tire failure. Sometimes, it’s something that a visual inspection would reveal. Take the opportunity to check your tires when you’re gassing up. Look for slashes, missing chunks, nails or screws in the tread or just uneven wear. Of course check the air pressure too.
Now tire damage can be on the inside where you can’t see it until it’s removed from the wheel. Such damage could come from a severe impact, driving on a flat or even just low pressure. Some punctures can cause internal damage that are too severe to be repaired. You may see our Ambler Tire & Auto Service professionals take the time to remove your flat from the rim and inspect the inside before repairing it, which means we're just following good procedure.
Now some tires just can’t be repaired. A puncture may be too large to plug. Also, the puncture could be in a location that’s not safe to repair like in the sidewall or outer portion of the tread. So called run-flat tires should not be repaired because their design is such that internal damage can’t be detected by a visual inspection.
It is also important that repairs should only be done by a qualified tire specialist like the ones we have at Ambler Tire & Auto Service. You can buy self repair kits – save those for emergencies, like when you’re off-roading and need a quick fix so you can hobble back to civilization and get professional help. If you need to use a repair-in-a-can product, remember it’s a temporary measure only and your tire needs to be properly repaired as soon as possible.
Here are some other considerations: Repairing a flat may void your tire manufacturer’s warranty – just something to keep in mind. Also, if you repair a speed rated tire, you should not use it in any motorsports or operate it above legal speed limits. Your tire professional will repair your tire whenever it’s safe to do so and he’ll advise you when it’s better to replace it. So watch those curbs and keep the air – on the inside.
Ambler Tire & Auto Service
123 South Main Street, Ambler, PA 19002
215-646-9150
Posted in the Tires and Wheels category
Tire Maintenance In Horsham
Posted February 22, 2013 10:27 AM
With the recent focus in Horsham on improving fuel economy, we've been told how important it is to maintain our tire pressure.
Everyone in Horsham knows that tires wear out, but we all want to make them last as long as possible because they're fairly expensive to replace. In addition to saving gas, properly inflated tires last longer. Under-inflated tires will wear out more quickly.
Some people in Horsham wonder if there is benefit to adding a few extra pounds of pressure when they fill up their tires. But actually, there isn't. In fact, there are very good reasons not to over-inflate your tires. For one, the middle of the tread will wear unevenly because the full tread is not contacting the road properly. That also adversely affects your handling.
Come in and see us about tire maintenance for your Ambler, PA vehicle.
Ambler Tire & Auto Service
123 South Main Street
Ambler, PA 19002
215-646-9150
Every vehicle in the Horsham area has a sticker on the driver's side door jamb that tells you the manufacturer's recommended tire pressure. This recommendation is an integral part of the vehicle's suspension tuning. A lot of engineering actually goes into the recommended tire pressure, so it's important to follow it.
What else do we need to know about tire maintenance? Tire rotation and balancing are very important. Let's start with rotation. Because the front tires handle the brunt of turning forces, the shoulders of the front tires wear more quickly than the rear tires. We rotate the tires so that they all get to do some duty on the front and they'll all wear evenly over their life.
For most vehicles, front tires are rotated to the rear and vice versa. Others recommend a cross rotational pattern. Some vehicles use an asymmetrical tire so those tires need to stay on either the right or left side – it'll say which on the tire. Some high performance cars have asymmetrical tires and different sizes on the front and rear. These can't be rotated at all. Your owner's manual will have details for your car.
How often should you rotate your tires? Your owner's manual will have a recommendation. Your service advisor at Ambler Tire & Auto Service can do a visual inspection to let you know if it looks like it should be done. The interval is typically around 5,000 miles.
You know, some people don't think new tires need to be balanced. What they aren't taking into account is the wheel. Between the wheel and the tire – even a new tire – there's enough variation to require balancing.
When you add the valve stem and tire pressure monitoring sensors required on new cars, balancing is definitely in order. When a tire's out of balance, it's actually hopping down the road. You'll feel the vibration through the steering wheel if a front tire's out of balance and through your seat if it's a rear tire.
Proper wheel balance promotes tire life and increases safety. Historically, lead weights have been attached to the wheel to bring it into balance. Lead gives some environmental concern, so steel weights are starting to be substituted.
Also, always use the same size tire on an axle. Different size tires on the front or on the back can lead to some real handling problems. And tire manufacturers recommend that when you get two new tires, they be installed on the rear because that's where you need the most traction to avoid spinning-out.
Posted in the Tires and Wheels category
Wheel Balancing
Posted January 4, 2013 2:48 PM
So you love our job, and your family life is great: You have achieved balance. But can you the same for your wheels? You can tell if your tires are out of balance by vibrations at higher speeds. If one of the front tires is out, you feel the vibration in the steering wheel. If it's a back tire, you'll feel the vibration in your seat.
Tires and wheels are pretty heavy. When a tire is mounted on a wheel, it is usually not perfectly balanced. So the tire technician will spin the tire on a machine to determine where it's too heavy. He will then place weights on the wheels in strategic locations to balance it out. When a tire is out of balance, it actually bounces down the road instead of rolling smoothly. Since the average size tire rotates at about 850 revolutions per minute at 60 MPH, it is actually slamming into the pavement 14 times a second. That's where you get your vibration.
Most people are surprised at how smoothly their car rides after balancing all four wheels.
Most high-quality tires hold their balance pretty well. They just get out of balance gradually with normal wear and tear. If you suddenly feel a vibration, it is probably because you lost a wheel balancing weight along the way. Definitely get a balance if you feel a vibration, change your rims or have a flat repaired. Putting off a needed balance job leads to excessive tire wear, wear to your shocks, struts, steering and suspension parts. wheel balancing not only improves your ride and handling, but also can save you some big repair bills and possibly an accident. Additionally, you will get better gas mileage.
Some people have their tires balanced at every rotation. Others do it every other time. Check your owners' manual for your requirements, or ask your technician. Doing thus will put you on the path to mechanical wheel balance
.
Posted in the Tires and Wheels category
Philadelphia Safety Systems: Tire Pressure Monitoring System
Posted November 28, 2012 11:56 AM
Flats, blow outs, skids and longer stopping distances can all be the result of Philadelphia folks driving around on under-inflated tires. Now, it’s hard to tell when a radial tire is under-inflated. If your manufacturer recommends 35 pounds of pressure, your Honda or Toyota tire’s considered significantly under inflated at 26 pounds. The tire may not look low until it gets below 20 pounds.
New laws required manufacturers to include a Tire Pressure Monitoring System – or TPMS system – in all cars and light trucks by the 2008 model year. The system has a dashboard mounted warning light that goes off if one or more of the tires falls 25% below manufacturer’s pressure recommendations.
This technology has been used by Philadelphia race car drivers for years. They are able to head off problems from under inflation by closely monitoring tire pressure on the track. It’s up to your car’s manufacturer to determine which of many TPMS systems available they’ll use to comply with the law.
Obviously, all of this doesn’t come free for Philadelphia drivers. U.S. government studies have estimated the net costs. Of course, the TPMS system itself will cost something. Maintaining the system will have a cost, replacement of worn or broken parts and tire repair cost increases.
The costs are partially offset by savings in fuel and tire wear. There’s also a saving in property damage and travel delay. The net cost is estimated to be between $27 and $100. The government predicts fewer fatal accidents. They estimate that it will cost between three and nine million dollars for every life saved.
Your safety has always been a concern at Ambler Tire & Auto Service. We want you on the road and accident free. We've traditionally provided things like tire rotations, snow tire mounting and flat fixes at a very low cost. We’ve been able to quickly and cheaply provide the service, and pass the low cost on to you as an expression of our good will.
That’s why we're concerned about how you’ll perceive the changes that this new law will force. Every time a tire is changed: taken off to fix a flat, a new tire installed, a snow tire mounted; the Ambler Tire & Auto Service service technician is now going to have to deal with the TPMS system.
Even a simple tire rotation will require that the monitor be reprogrammed to the new location of each tire. When a car battery is disconnected, the TPMS system will need to be reprogrammed. TPMS sensor batteries will need to be changed and failed parts replaced.
Like all other Philadelphia service centers, here at Ambler Tire & Auto Service we've had to purchase new scanning equipment to work with the TPMS sensors and to update expensive tire change equipment to better service wheels equipped with the new monitoring systems. Our Ambler Tire & Auto Service service technicians have been thoroughly trained on many systems and new tire-changing techniques. All of this adds up to significantly increased cost to perform what was once a very inexpensive service for you.
So when you start so see the cost of tire changes, flat repairs and rotations going up at Ambler Tire & Auto Service, please keep in mind that it’s because of government mandated safety equipment. We want to keep you safely on the road – and we're committed to doing it at a fair price. This new safety equipment will help you avoid the most common types of vehicle failure in Philadelphia, and possibly a catastrophic accident.
Posted in the Tires and Wheels category
PA Balance: Wheel Balancing and Tire Rotation
Posted September 13, 2012 11:14 AM
Everyone in the Philadelphia area wants our tires to last as long as possible. Two ways to maximize tire life are wheel balancing and tire rotation.
When wheels are out of balance, they wobble a bit. That makes the tires wear in a cupping pattern. And they vibrate. To fix this, your service technician at Ambler Tire & Auto Service puts weights on your wheels to balance them out. If a front wheel is out of balance you’ll feel it in the steering wheel. If it’s a rear wheel you’ll feel it through your seat.
That brings us to tire rotation. The front tires on a car wear out more quickly than the rear tires. As they push through turns from Ambler to Horsham, the shoulders of the front tires wear down. So rotating front and rear tires allows them to all wear at about the same rate over the life of the tire.
Proper tire inflation will also help your tires last longer. Under-inflated tires wear excessively on the shoulder and may even overheat. This could cause tire damage or a blow out. Over-inflated tires wear to fast in the middle.
Four wheel drive trucks and SUV’s tend to wear their tires more unevenly so rotation is even more important with them. Give us a call to get our recommendation on your Honda or Toyota.
See your owner’s manual or ask your service technician at Ambler Tire & Auto Service for your recommended tire rotation schedule. It’s usually every 5,000 to 8,000 miles.
Tires cost a lot and they are one of the most critical safety components on your vehicle. Take care of them and they’ll take care of you.
Ambler Tire & Auto Service
123 South Main Street
Ambler, PA 19002
215-646-9150
Posted in the Tires and Wheels category
Wheel Bearings
Posted June 27, 2012 10:26 AM
Let me start by saying that your wheel bearings keep the wheels on your vehicle. Did that get your attention? In this article we’ll discuss more about wheel bearings and how you can keep them doing their very important job while you drive around Blue Bell PA.
Come see us at: 123 South Main Street Ambler, PA 19002
Wheel bearings are pretty simple parts. They’re made of high quality steel and are engineered to last 100,000 miles or more if properly cared for. The bearings do two very important jobs: First they allow the wheel to freely rotate with as little friction as possible. Second, they support the weight of the vehicle. For example, if your car weighs 3,600 pounds, each wheel has to support approximately 900 pounds. That’s a lot of heavy lifting over many, many thousands of miles.
Even though wheel bearings are relatively simple, they need to be in near perfect condition to do their job. The bearings are packed with heavy grease to lubricate and protect them. A seal keeps the grease in and water and dirt out. It’s when the seal starts to leak that problems begin. The grease can become contaminated; causing the wheel bearings to overheat and ultimately fail.
The first sign that your wheel bearings are in trouble is an unusual noise coming from a wheel. It could be a chirping, growling, rumbling or a cyclic sound. The noise could get louder or even disappear at certain speeds. Your technician at Ambler Tire & Auto Service can inspect for bearing wear by lifting the vehicle and checking for play in the wheel.
Now some wheel bearing assemblies are factory sealed. That means that they cannot be serviced – they can only be replaced. Those that aren’t sealed can be serviced on schedule. The bearings are removed, cleaned and inspected. If the bearings are still good, they’re re-installed – if not, they’re replaced. They are then packed in grease and a new seal is installed.
If your vehicle has a factory sealed wheel bearing assembly, the entire assembly needs to be replaced when trouble arises. Unfortunately, the parts are pretty pricy – but they usually last about 150,000 miles as long as the seals hold up.
Now, even a good seal cannot keep out water that’s exerting pressure on the seal. So if you’ve driven through hub deep water your bearings should be cleaned and repacked if they’re serviceable. If you have factory sealed bearings, you just need to watch for signs of premature failure.
If your wheel bearings can be serviced, your owner’s manual will recommend an interval, usually around 30,000 miles.
Now, if you have any sort of trailer, don’t forget its wheel bearings. They probably need to be serviced even more frequently. This is especially true for boat trailers that are used to launch the boat by backing it into the water. These should be serviced every year, usually at the end of the season so that the bearings don’t have the opportunity to sit and rust all winter.
So what happens if wheel bearings fail? Well, the wheel can literally fall off the vehicle. I don’t need to tell you how bad that could be. So check with your service advisor at Ambler Tire & Auto Service and see if your vehicle’s wheel bearings can be serviced and when it’s recommended. Listen for warning signs. If you’ve been fording streams or puddle surfing after rainstorms, be especially vigilant.
Come by Ambler Tire & Auto Service for a wheel bearing inspection, or for diagnostics & check engine lights. Call for an appointment at 215-646-9150
Posted in the Tires and Wheels category
Tire Pressure Monitoring System
Posted June 5, 2012 11:21 AM
We all know that under inflated tires wear out more quickly. Under-inflation is also a major cause of tire failure. More flats, blow outs, skids and longer stopping distances are all results of under-inflated tires.
It's hard to tell when a radial tire is under-inflated. If your manufacturer recommends 35 pounds of pressure, your tire is considered significantly under inflated at 26 pounds. The tire may not look low until it gets below 20 pounds.
Uncle Sam to the rescue! A new federal law requires manufacturers to include a Tire Pressure Monitoring System - or TPMS system - in all vehicles by the 2008 model year.
Some 2006 and 2007 models already have TPMS. The system is a dashboard mounted warning light that goes off if one or more of the tires falls 25 % below the manufacturer's pressure recommendations.
The law covers all passenger cars, SUVs, mini vans and pick up trucks. The system must also indicate if it has a malfunction. This technology has been used by race cars for years. They are able to head off problems from under inflation by closely monitoring tire pressure on the track. It's up to your car's manufacturer to determine which of many TPMS systems available they'll use to comply with the law.
Obviously, all of this doesn't come free. Government studies have estimated the net costs. Of course, the TPMS system itself will cost something. Maintaining the system will have a cost, replacement of worn or broken parts and tire repair cost increases. The net cost is estimated to be between $27 and $100.
The costs are partially offset by savings in fuel and tread wear. There is also a saving in property damage and travel delay. Also, the government predicts fewer fatal accidents. They estimate there will be between $3,000,000 to $9,000,000 for every life saved.
Your safety has always been a concern of your service center. They want you on the road and accident free. They've traditionally provided things like tire rotations, snow tire mounting and flat fixes at a very low cost. They've been able to quickly and cheaply provide the service, and they pass the low cost on to you as an expression of their good will. That's why they're concerned about how you'll perceive the changes that this new law will force.
Every time a tire is changed: taken off to fix a flat, a new tire installed, or a snow tire mounted, the service technician is now going to have to deal with the TPMS system. Sensors will need to be removed and reinstalled. The sensors will have to be re-activated after the change. And, unfortunately, the very act of changing the tire will damage some sensor parts from time to time - it's inevitable and can't be avoided.
Even a simple tire rotation will require that the monitor be reprogrammed to the new location of each tire. When a car battery is disconnected, the TPMS system will need to be reprogrammed. TPMS sensor batteries will need to be changed and failed parts replaced.
And the service centers themselves will need to purchase new scanning equipment to work with the TPMS sensors and to update expensive tire change equipment to better service wheels equipped with the new monitoring systems.
Service technicians will have to be trained on many systems and new tire-changing techniques. All of this adds up to significantly increased cost to the service center to perform what was once a very inexpensive service for you. So when you start so see the cost of tire changes, flat repairs and rotations going up, please keep in mind that it's because of government mandated safety equipment. Your service center just wants to keep you safely on the road - and it's committed to do so at a fair price. The effects of the new law will take some time to sort out, but it will help you avoid the most common vehicle failure, and possibly a catastrophic accident.
Posted in the Tires and Wheels category
Tire Replacement: What Norristown Drivers Need to Know
Posted April 17, 2012 11:31 AM
Looking at getting some new tires? The choices at Norristown tire stores can be a little overwhelming. Suppose you have an SUV and are trying to decide between all season tires or some that are also rated for off-highway. Do you get off the payment on the outskirts of Norristown more than most? If so, some additional off-road traction would be nice.
Maybe the real reason for wanting those off-highway tires is that they look cool. Well there’s nothing wrong with that. If you make sure that you’ve got your functional needs covered with your selection, then you can have some fun with where you go from there.
Let’s suppose you zip around Norristown in a sporty car. You may like to run a high-performance summer tire when the weather’s good. When PA weather turns cold, you can put on high-performance winter tires. For the kind of driving you like to do, you want full-on performance tires. All-season tires are naturally a compromise that works well for most Norristown drivers, but since you have a choice, go for dedicated summer and winter tires.
When it’s time for new tires, visit with a knowledgeable Ambler Tire & Auto Service tire professional. Describe your needs and wants. He’ll come up with some selections for you to discuss. And once you settle on a type of tire, there are options for special needs: like pulling a trailer or carrying heavy loads.
Tires are one of the biggest purchases for Norristown drivers. With so many choices, you’ll be able to get what’s best for you. Take their time. And don’t worry about what’s in stock. If you want something that isn’t here at Ambler Tire & Auto Service, manager Dave Chiffens can order it. Chances are you’ll be rolling on your new tires in a couple of days.
Posted in the Tires and Wheels category
When Are Your Tires Worn Out?
Posted April 12, 2012 2:50 PM
Hey Philadelphia, are your tires worn out? What is the standard for our PA streets? How can you tell on your Honda or Toyota?
While there may be legal requirements for the Philadelphia area, there are safety concerns that go beyond meeting minimum replacement mandates.
2/32 is the depth of the tire tread wear indicator bars that US law has required to be molded across all tires since August 1, 1968. When tires are worn so that this bar is visible, there's just 2/32 of an inch – 1.6 millimeters – of tread left. It's that level of wear that's been called into question recently.
We're referring to the Consumer Reports call to consider replacing tires when tread reaches 4/32 of an inch, or 3.2 millimeters. And the recommendation is backed by some very compelling studies.
The issue is braking on wet surfaces in and around Philadelphia. Most of us think of our brakes doing most of the work, but if you don't have enough tread on your tires, the brakes can't do their job. When it's wet or snowy, the tread of the tire is even more critical to stopping power.
Picture this: you're driving over a water covered stretch of road near Philadelphia, PA. Your tires must be in contact with the road in order to stop. That means that the tire has to move the water away from the tire so that the tire is actually contacting the road and not floating on a thin film of water.
Floating on the surface of water is called hydroplaning. So if there's not enough tread depth on a tire, it can't move the water out of the way and you start to hydroplane.
In the study a section of a test track was flooded with a thin layer of water. If you laid a dime on the track, the water would be deep enough to surround the coin, but not enough to cover it.
A car and a full-sized pick-up were brought up to 70 miles per hour, or 112 kilometers an hour and then made a hard stop in the wet test area. Stopping distance and time were measured for three different tire depths:
- New tire tread depth
- 4/32 of an inch
- 2/32 of an inch
So what happened with the 2/32 tires on the car? Get this – when the car had traveled the distance required to stop with new tires, it was still going 55 miles an hour. Stopping distance was nearly doubled to 379 feet and it took 5.9 seconds.
Wow! That means if you barely have room to stop with new tires, you would hit the car in front of you at 55 miles an hour with the worn tires.
Now, with the partially worn tires – at 4/32 of an inch – the car was still going at 45 miles an hour at the point where new tires brought the car to a halt. It took nearly 100 feet more room to stop and 1.2 seconds longer. That's a big improvement. We can see why Consumer Reports and others are calling for a new standard.
Of course, stopping distances were greater for the heavier pick-up truck.
How do you know when your tires are at 4/32 of an inch? Easy; just insert a quarter into the tread. Put it in upside down. If the tread doesn't cover George Washington's hairline, it's time to replace your tires. With a Canadian quarter, the tread should cover the numbers in the year stamp.
You may remember doing that with pennies. A penny gives you 2/32 to Abraham Lincoln's head. The quarter is the new recommendation – 4/32.
How do people feel about replacing their tires earlier? Well, tires are a big ticket item and most people want to get the most wear out of them that they can. But do you want that much more risk just to run your tires until they are legally worn out?
For us, and we would guess for many, the answer is "no".
Ambler Tire & Auto Service
123 South Main Street
Ambler, PA 19002
215-646-9150
Posted in the Tires and Wheels category
Tire Rotation and Balancing
Posted February 9, 2012 12:56 PM
Tires do a lot of work. They transfer engine power and braking forces to the road; they handle steering control; and they cushion all those bumps and jolts. They also support the entire weight of the vehicle, including you and your passengers. With such critical work to do, you want your tires to do their job well. And since replacing tires is fairly expensive, you want them to last as long as possible.
There are three keys to long, even tire wear:
The front tires on a car take the brunt of the steering forces. As they push through turns, the shoulders of the front tires wear down more quickly than the rear tires. Rotating front and rear tires allows them to all wear at about the same rate. That’s especially true of front wheel drive vehicles whose front tires steer, and put the power to the road.
SUVs and pick-ups, especially four wheel drives, also tend to wear their tires more unevenly than cars because of their suspension and drive train set-up. Your owner’s manual will likely contain a schedule for tire rotation. It’s usually every 5,000 miles or so.
Also, there are different rotation patterns for different vehicles. Ambler Tire & Auto Service will know which is right for your vehicle. That brings us to wheel balancing. When wheels are balanced, they spin on the axle evenly. When they are out of balance, they wobble a bit. That makes the tires wear unevenly and may transmit a vibration to the car. Your service technician at Ambler Tire & Auto Service puts weights on your wheels to balance them out so that they turn true and smooth.
Tires are a big investment for any vehicle. They’re critical for keeping you safely on the road. The cost for regular rotation and balancing is more than made up in extended tire life. And, can you really put a price on your safety and that of your passengers?
Posted in the Tires and Wheels category
Winter Tires
Posted December 5, 2011 8:06 AM
What type of technology do you use? Do you prefer an 8-track tape or an iPod? When it comes to winter tires, much of the public's perception dates back to when 8-track was the best way to listen to the Bee Gees.
Twenty years ago, winter tires differed from highway tires only in their tread design. We called them snow tires back then and they had big, knobby lugs that were designed to give good traction in deep snow. They had the same rubber compound as regular tires and they weren't very good on ice, packed snow or wet roads. They were not even very good on dry roads. They really helped in deep or loose snow, but they did a poor job the rest of the time. They were loud and rode hard. You couldn't wait to get them off in the spring.
Then all-season tires started to come along. All-season tires are really a compromise between summer and winter performance. They have acceptable hot weather ride and tread life, and you can get through mild winter road conditions OK. But there are some really good reasons to consider winter tires.
Modern winter tires do a terrific job in a wide range of winter conditions. First of all, below 45 degrees Fahrenheit, regular tires become hard and inflexible. That means they don't provide the road grip you need. Even if you don't live somewhere with a lot of snow, but it still gets below 45 degrees in the winter, you will be safer with winter tires.
In addition, they are specifically designed to more effectively move snow and water. That's the key to traction on ice, packed snow and wet roads. They use a micro-pore compound that allows the tire to bite into ice and snow. They also use wider grooves that run around the circumference of the tread to expel snow from the tire better. The lugs and grooves on winter tires have a special shape that throws the packed snow out of the tread as the tire turns. The tread is then open when it comes back in contact with the road and can provide good traction.
Winter tires also have a lot of sipes. Sipes are thin slits in the tread. The edge of the sipes grab ice and packed snow to provide tons of traction and to expel water and slush out of the tread. winter tires have a rounder casing to cut into the snow's surface. The treads on regular summer tires can actually get packed with snow instead and become very slick. winter tires offer 25% to 50% more traction than all-season tires. And when it comes to stopping power, all-season tires take 42% longer to stop than winter tires. Sometimes that's the difference between getting home safely and spending the night in a snow bank.
Now back when the 8-track was king, you just put snow tires on the drive wheels. That worked out OK because the rubber compound was essentially the same. Now, winter tires provide so much more traction than all-season or summer tires, that there's a huge difference between the traction at the front and rear ends of the car if you only put winter tires on the drive wheels.
For example: if you take a corner on an icy road and the rear end starts to slide out, essentially the rear is trying to pass the front because it's going faster. If you have high traction winter tires only on the front, they are going to be much more effective at transferring cornering grip and stopping power to the front wheels. This will actually cause the rear end to whip out even more.
That's why tire manufactures instruct their dealers that they must install winter tires on the rear wheels as well whenever they put winter tires on the front end of any vehicle. It's a major safety concern. It's strongly recommended that winter tires be installed on all four wheels on rear wheel drive vehicles as well. The front tires do most of the steering and braking work - it only makes sense that you provide the front end with the best traction you can.
People often assume that if they have four-wheel drive or all-wheel drive they don't need winter tires on all four wheels. Would you intentionally disconnect the four-wheel drive in poor road conditions? Of course you wouldn't, but that's essentially what you do if you only put winter tires on one end. It only makes sense to have the same level of traction and control at all four corners.
The province of Quebec in Canada has issued a law requiring all passenger vehicles, taxis and rental cars with Quebec license plates to install a full set of four winter tires between November 15th and April 1. It's that important.
Many modern cars have traction control and anti-lock brakes so people may think that they don't need winter tires. But you need traction to accelerate, steer and stop. The tires provide the traction so that the traction control and anti-lock brakes have something to work with.
Look for tires with the symbol of a mountain with a snowflake in it. This means the tire complies with the severe snow standard. All-season tires will have an M&S, for mud and snow, on the sidewall.
So when the temperatures drop below 45 degrees, be sure you have a set of four winter tires for maximum performance in snow, packed snow, ice, wet and dry roads. Your tire professional can help you find the right winter tire for your vehicle and driving needs.
Posted in the Tires and Wheels category
