Monday, March 07, 2016
Why New Car Tires Wear Out So Fast
Furthermore, your manufacturer does not warranty the tires on your new car even though he tells you that you have a “bumper to bumper” warranty. The last time I checked, my tires were between my front and rear bumpers. Even though GM designed the tires on your Chevrolet, they have no responsibility if they are defective. The tire manufacturer bears that responsibility.
The OEM tires that came with your car can’t be replaced (which is a good thing) after they’ve worn out. And they will wear out much sooner than they should. This is because virtually all auto manufacturers specify very soft rubber which means they wear out too fast. Why would the manufacturer do that? They want that new car to have the smoothest ride possible, even at your expense of having to buy a new set of tires at half the mileage you should have to. When you test drive that brand new car and it rides very, very smoothly you’re more likely to buy it. You’ll find out how fast the tires wear out much later, and when you do you’ll blame it on the tire maker.
By the way, another way the car makers delude you into thinking your ride is very smooth is by recommending low tire inflation. The number you see on your door jamb or in your car’s owner’s manual is the car manufacturer’s recommended air pressure. The number on your tire is the tire maker’s recommendation. The number on the door jamb is the minimum and the number on the tire is the maximum. There’s typically a 10 pound difference. I recommend you try the maximum and, if the ride’s too rough, split the difference. You’ll not only get longer tire wear but better gas mileage.
I can’t prove it, but I suspect another reason auto manufacturers design their own tires is to cut costs. By cutting a few corners in the design and specifications, they can increase their profit and/or cut the overall car price. If there purpose was to design a better tire, why wouldn’t they make these OEM tires available for the car owner to buy after the first set wears out? Many car owners “think” they’re replacing their Firestones or Michelins that were on their new car with the same tire, but they’re not. The tire might be the same size and look the same, but it’s a different model number.
One thing you should look for on your first set of replacement tires is the “tread wear index” which is molded into the side of your tires. This number will be 200 to 800. Your OEM tires will have a lower number because their made of softer rubber. If the tires that came on your car had a 200 tread wear index and you replaced them with 400, you should get twice the mileage on your second set of tires. The car might not ride as smoothly, but most people can’t even notice. And to my way of thinking, cutting you tires cost in half is pretty good compensation for a slightly rougher ride.
When replacing your tires, don’t get enamored by a sexy brand name. Brands aren’t always built on quality but also on advertising. Also, a famous brand tire makes all different kinds of tires to many different designs and specifications. Just because it’s a “Michelin” doesn’t necessarily man it’s a good tire. If Michelin made that tire for an auto manufacturer who designed the tire with only two things in mind…low cost and soft ride, you didn’t get a very good tire. My recommendation is to check Consumer Reports for the best tire replacements. You’ll find tire brands recommended that you may never have heard about. The Japanese and Chinese make some very good tires but they have funny sounding names and you don’t see them advertised heavily on TV.
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