Tires, Tires, Tires!
What tire do you need?
You know you need new tires, but you’re not sure what type. You look at a tire to get the size: 225, 50, R, 16, 92, H. All the way to the Yakima service center you keep repeating it over and over. You even say it over in your mind while waiting in line. Then you get to the counter and the manager asks what size you need. Then your mind goes blank.
Tire size can be confusing for many Yakima drivers. There’s so much on the side of the tire, and it’s hard to keep straight.
Even though there’s a lot on a tire – if you know what it all means, it’s actually more helpful than confusing for Yakima tire shoppers.
Reading the tire – decoding the letters and numbers
Let’s start with the size number. For example, let’s say a tire reads: 225 50 R 16 92 H. The 225 part is the width of the tire in millimeters – the width between the sidewalls of an inflated tire with no load. The 50 is the aspect ratio – the ratio of the sidewall height to the tread width. Off-road tires will have a higher number and high performance tires will have a lower number.
The R signifies it’s a radial tire. And 16 is the rim or wheel size in inches.
The 92 is the load rating index – it’s the load carrying capacity of a tire. The higher the number, the more it can safely carry. Your empty truck can be safe with a lower number, but you’ll need a higher rating if you routinely haul heavy loads around Yakima. The next letter is the speed rating. Not all tires sold in Yakima are speed rated. The ratings generally follow the alphabet: the further up the alphabet, the higher the speed rating – with the exception of H – it comes between U and V (don’t ask why).
There’s a lot of fine print that most Yakima motorists probably need a magnifying glass to read. But there are a couple of other large print items of interest. One is the tread type: highway, mud and snow, all season, severe snow, etc.
And then there’re the Uniform Tire Quality Grading System markings. The first is a tread wear index. 100 is the base line – a lower number is poorer and a higher number is better. All things being equal, a tire rated 200 would wear twice as long, on a government test track, than one rated at 100. These wear grades are only valid within the auto maker’s product line – Yakima car owners can’t compare with other auto manufacturers. And it’s critical to note that a lower rating might be just what you want – a high performance, sticky tire has a softer rubber compound and won’t wear as long, but boy, will it take those corners on twisting WA roads.
Traction grade and temperature grade
The next is a traction grade. This measures the tire’s ability to stop on wet pavement in government tests. A – the best, B – intermediate, C – acceptable. Temperature grade measures a tire’s resistance to heat build up in government tests. A, B and C – from best to acceptable.
Sticking with the original or changing it up
It’s safe for Yakima drivers to go with the auto manufacturer’s original equipment recommendations that came on your car. But if you want to make adjustments, you’ll now be better equipped to communicate with your thoughtful AutoMetrics tire professional.
Yakima Audi owners need not worry about getting proper diagnostics performed on their vehicles. AutoMetrics has ASE and Bosch certified master technicians on staff and is equipped with factory or better Audi diagnostic tools so our technicians have the best tools to work with. Our ability to accurately diagnose the issue will save you time and money. This is what allows us to make the right repair and get you back on the road faster than any other Yakima auto repair shop.
– A proper diagnosis leads to a proper repair –
This is just a short list of some of the systems we repair on Audi vehicles: Brakes, engines, anti-lock brakes (ABS), traction and stability control systems, fuel injection, electrical systems, transmissions, clutches, power windows and door locks, heating systems, air conditioning, axles, starters, ignitions, radiators, reprogramming, water pumps, timing belts, ball joints, control arms, wheel bearings, alternators, pre buy inspections, catalytic converters, airbags, belts and hoses, fuel pumps, washer pumps, sun roofs, head lights, tail lights, transfer cases, batteries, and body control systems.
We are the Yakima experts on Audi maintenance and service. From changing oil and all other vital fluids to performing valve adjustments, 30k service, 60k service, 90k service, tune ups, timing belts, timing chains, spark plugs, filters, headlight restoration, cooling system flushes, fuel injection cleaning, power steering flushes, transmission flushes, headlight alignments, thermostats, belts, hoses, antifungal and deodorization services for air conditioning systems, etc. AutoMetrics has all the expertise and factory repair information to ensure your car is reliable and stays dependable for years to come.