Tires/Wheels - Tire Rotation Recommendations
NO:
007
GROUP:
177
ISSUING DEPARTMENT:
Service Business
CAR MARKET:
United States, Canada
DATE:
YEAR MONTH DAY
2012 01 26
TITLE:
Tire Rotation
As suspensions and drive trains evolve, so do vehicle manufacturer recommendations for tire rotation. Volvo's recommendations have always had a
technical basis, while leaving some latitude for customer preference. Presently, for current models, Volvo has no recommended tire rotation.
Customers may need the guidance of a Volvo service advisor to help them understand the performance and handling tradeoffs that come with tire
rotation. Tire wear is affected by a number of factors such as tire inflation, ambient temperature, driving style etc.
Benefits of Not Rotating Tires Braking Stability Performance
During hard braking, braking on a slippery road, or braking in a curve, good rear tire tread may help you avoid oversteer. Oversteer is when a
turning vehicle wants to keep turning because of momentum and dynamic forces on the vehicle suspension. Volvo stability systems are all designed
toward reducing or helping a driver avoid oversteer. Still, all things being equal, having more rear tire tread can contribute to reduced oversteer.
Without rotation, the rear tires will naturally wear more slowly and have more tread.
Tread Set
As tires age, the tread adopts an angular set, based on its angle to the road surface. For vehicle handling reasons, front and rear tread angle is not the
same. If tires are rotated, the tread will eventually set at an angle somewhere between what is optimal for a front or rear tire. Although vehicle ride,
handling, and road noise may still be acceptable, they may not be optimal. Additionally, an infrequently or irregularly rotated tire may result in tire
noise, faster tire wear, and unpleasant changes in steering feel and vehicle handling.
Driving Performance
A tire that can actually adapt to its position will generally provide better steering feel, lower tire noise, and better fad economy.
Suspension Wear Diagnostics
Every vehicles suspension needs periodic inspection and maintenance. A tire's tread wear pattern can be an aid in detecting and diagnosing a
suspension problem. Each tire, if left in place, tells a story about its place in the suspension. Tire rotation, on the other hand, can mask a developing
problem. Early detection is very important, because suspension problem can worsen tire wear, and reduce vehicle performance, handling, stability,
and fad economy.
Tire Rotation
If the tires are rotated, they should only be moved from front to rear or visa versa. They should never be rotated left to right/right to left.
Ideally, tire rotation should be done the first time after approximately 3,000 miles/5,000 km and thereafter at 6,000 mile/10,000 km intervals. Some
customers find that tire rotation may help to get extra mileage from tire life.
Tire rotation should only be performed if front/rear tire wear is fairly even and tread height is above 1/16" (1.6 mm).
However, with all current Volvo models, Volvo believes that numerous technical, performance, and handling benefits outweigh any perceived
benefit of tire rotation.
1982 Volvo 240 L4-2127cc 2.1L SOHC B21F9
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