Category Archives: Tires and Wheels

Tire Tread Wear: When Are Your Tires Worn Out?

Hey San Diego, are your tires worn out? What is the standard for our CA streets? How can you tell on your sedan? While there may be legal requirements for the San Diego 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 San Diego. Most of us think of our brakes doing most of the work, but if you don't have e ... read more

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Tires and Wheels

Upsizing Wheels and Tires

At AutoNetTV we love doughnuts. So let's pretend you have three doughnuts right in front of your for our discussion of upsizing wheels and tires. Hey, don't eat them now - your going to need them later. Many people want to accessorize their car - you know, make it theirs. One of the easiest ways to get a custom look is to get some new wheels. There are thousands of wheel designs out there to get you the look you want. And for many, that look includes bigger wheels. It used to be that cars came from the factory with 15 or 16 inch wheels. Now 16, 17 and even 18 inchers are standard. And the factories are offering optional wheel packages up to 20 inches or more. So let's talk about what to consider when you want to upsize your wheels. It's not exactly a do it yourself project, so you need to know a thing or two before you get started. The most important term to know is rolling diameter. The rolling diameter is simply the overall ... read more

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Tires and Wheels

Tire Pressure Monitoring System

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 y ... read more

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Tires and Wheels

CA Balance: Wheel Balancing and Tire Rotation

Everyone in the San Diego area wants our tires to last as long as possible. Two ways to maximize tire life are wheel balancing and car tire rotations. 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 Convoy Auto Repair 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 San Diego to Mission Valley, 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 e ... read more

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Tires and Wheels

Tire Tread Depth for San Diego CA

So, when are your tires actually worn out? This is a question a lot of us in San Diego ask ourselves. For many, the answer is 'when they no longer pass a safety inspection'. But waiting that long can have a serious impact on your safety. The U.S. Federal government doesn’t have any laws for tread depth, but 42 of the states, and all of Canada, do have regulations. They consider two-thirty-seconds of an inch to be the minimum legal tread depth. Two other states, including California, consider one-thirty-second to be the minimum and six states have no standards at all. Call us at Convoy Auto Repair to find out what your requirements are in the San Diego area. Since 1968, U.S. law has required that a raised bar be molded across all tires. When tires are worn enough that this bar becomes visible, there’s just 2/32” of tread left. But does that older standard give you enough safety? Well, Consumer Reports issued a call to consider replacing tires when tread reaches ... read more

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Tires and Wheels

Tire Rotation and Balancing

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 co ... read more

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Tires and Wheels
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