Tire Designations
Tire Size
The following is an example of a typical passenger vehicle tire size.
(A) Passenger (P–Metric) Tire:
The United States version of a metric tire sizing system.
The letter P as the first character in the tire size means a passenger vehicle tire engineered to standards set by the U.S. Tire and Rim Association.
(B) Tire Width: The three–digit number indicates the tire section width in millimeters from sidewall to sidewall.
(C) Aspect Ratio: A two–digit number that indicates the tire height–to–width measurements.
For example, if the tire size aspect ratio is 60, as shown in item C of the illustration, it would mean that the tire's sidewall is 60 percent as high as it is wide.
(D) Construction Code:
A letter code is used to indicate the type of ply construction in the tire. The letter R means radial ply construction; the letter D means diagonal or bias ply construction; and the letter B means belted–bias ply construction.
(E) Rim Diameter: Diameter of the wheel in inches.
(F) Service Description: These characters represent the load index and speed rating of the tire. The load index represents the load carrying capacity a tire is certified to carry. The speed rating is the maximum speed a tire is certified to carry a load.
See also:
Public Transportation or
Fuel Reimbursement
If the vehicle requires overnight
warranty repairs, and public
transportation is used instead of
your dealer's shuttle service, the
expense must be supported by
original receipts and can onl ...
Checking Coolant
The vehicle must be on a level surface when checking the coolant level.
Check to see if coolant is visible in the coolant surge tank. If the coolant
inside the coolant surge tank is boiling, do not ...
Parking over Things That Burn
WARNING
Things that can burn could touch hot exhaust parts under the vehicle and
ignite. Do not park over papers, leaves, dry grass, or other things that can
burn. ...