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FAQ

What is the proper inflation for my tires?

We recommend using the tire pressure that the vehicle manufacturer recommends. This information located on the Tire Information Placard is normally located on the inside driver's door jamb. We suggest you do not deviate from this tire pressure. Pressure requirements may change when plus sizing tires. You may use the tool above to view the manufacturer recommended inflations for standard sized tires on your vehicle.

What is a tire speed rating?

A tire receives its speed rating by the U.S. Government through meeting minimum standards for reaching and sustaining a specified speed. What does that mean to you? Well, in general, a higher speed rating will result in better car handling.

We do not recommend downgrading the speed rating of your tires. This may result in poor handling and unpredictable steering. However, if you want better cornering response, there is no problem installing a higher speed rated tire on your vehicle.

Never mix and match tires with different speed ratings on your vehicle. This will cause serious problems with the handling of your vehicle.

LetterRatingLetterRating
B31P94
C37Q100
D40R106
E43S112
F50T118
G56U124
J62H130
K68V149
L75W168
M81Y186
N87Z149+
Speed is rated "Up to XX MPH"

What does UTQG mean?

Uniform Tire Quality Grading

UTQG is intended to provide simple, comparative data for your use in making an informed buying decision. However, the ratings are based upon test results achieved under very specific conditions. As a result, misinterpreting the comparative data as it relates specifically to your particular driving habits, conditions, etc., is a possibility. UTQG designates the comparative performance levels of a tire based upon government-specified tests. Tire manufacturers and brand name owners are required to grade regular and all-season tires in three categories: Treadwear, Traction, and Temperature.

Dot Quality Grades

All passenger car tires must conform to Federal Safety Requirements in addition to these grades.

Treadwear

The treadwear grade is a comparative grade assigned by the manufacturer based on the wear rate of a tire when tested under controlled conditions on a course that meets government-specified requirements. For example, a tire graded 150 would wear one and a half (1 1/2) times as well as a tire graded 100 under the controlled test conditions. The relative performance of tires depends upon the actual conditions of their use and may depart significantly from the norm due to variations in driving habits, service practices and differences in road characteristics.

Traction AA, A, B, C

The traction grade is based on wet skid tests of a tire on government-specified concrete and asphalt surfaces. The traction grade is based on a straight-ahead wet braking traction test and does not include a cornering traction test. The comparative tire grade letters, AA, A, B, and C (AA being the highest and C being the lowest) represent the tire's ability to stop the vehicle on wet pavement under the controlled test conditions. Ice and snow traction capabilities are not tested.

Warning:

The traction grade assigned is based on braking (straight ahead) traction test and does not include cornering (turning) traction.

Important Note

Keep in mind that comparing the performance of various tires is too complex to be based exclusively on UTQG grades.

  • UTQG grades are not government grades. They are manufacturer grades that are not based on head-to-head interbrand testing. Test data is not typically submitted to the National Highway Traffic Safety Administration.
  • Treadwear grades are not a guarantee for a given mileage warranty, or an indicator of overall tire quality. Treadwear grades are assigned by the manufacturer for comparison purposes within the same brand names and construction types only.
  • UTQG grades are not safety ratings. Overall tire quality and safety are not graded. Tire selection based on any one, two, or even three UTQG ratings may not satisfy your needs.
  • One brand name of tires cannot be considered superior or inferior to another brand name of tires based solely on UTQG grades.
  • UTQG grades are not required for snow tires, light truck tires and maximum traction tires.

What is the proper way to rotate tires?

4 Tire Rotation

Did you know that front tires wear out almost twice as fast as rear tires on a front-wheel drive vehicle? Also keep in mind that uneven tire wear may be due to mechanical problems like a misaligned suspension. On average, tires should be rotated every 5,000 miles and more frequently for high performance tires.

Wheel Balancing

Do you feel steering wheel vibration between 50 and 70 miles per hour? Out of balance wheels can create poor handling and a significant reduction in fuel mileage. We recommend wheel balancing with every tire rotation.

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How Do I Read a Tire Sidewall?

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Why did my tires wear so quickly?

Premature tire wear may be caused by many factors other than tire rotation. Some examples are as follows: improper inflation, driving conditions, misaligned vehicles, worn vehicle parts and many other reasons.

Without physically inspecting the tires it is difficult to make a determination as to why your tires wore prematurely. Please visit our location and have one of our trained professionals inspect your tires.

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