DeVille V8-4.6L VIN Y (1998)
Tires: Description and Operation
Replacement Tires Description
REPLACEMENT TIRES DESCRIPTION
A Tire Performance Criteria (TPC) specifications number is molded in the sidewall near the size of all original equipment tires. This number assures
that the tire meets GM performance standards for traction, endurance, dimensions, noise, handling, rolling resistance, etc. Usually, a specific TPC
number is assigned to each tire size. Replacement tires should be of the same size, load range, speed rating and construction as the original tires. This
means that replacement tires should have the same TPC specification number. Tires of any other size or construction may seriously affect ride,
handling, speedometer/odometer calibration, vehicle ground clearance, and tire clearance to the body and chassis. (This does not apply to the
factory-furnished spare). Although the tread might differ, tires of different manufacturers that have the same TPC specification may be intermixed on
the same vehicle. New tires should be installed in pairs on the same axle. If only a single new tire is to be installed, it should be paired with the tire
having the most tread to equalize braking traction.