The life of your tires is dependent on many factors, including driving habits, road conditions, vehicle loading, inflation pressure, maintenance history, speed, and environmental conditions (even when the tires are not in use).
In addition to regular inspections and inflation pressure maintenance, it is recommended that you have annual inspections performed once the tires reach five years old. All tires, including the spare, should be removed from service after 10 years from the date of manufacture, regardless of their condition or state of wear.
DOT Tire Quality Grading (U.S. Vehicles)
The tires on your vehicle meet all U.S. Federal Safety Requirements. All
tires are
also graded for treadwear, traction, and temperature performance according
to Department of Transportation (DOT) ...
How to Enter Information
You can enter information (e.g., city names, street names, personal names,
and business names comprising letters, numbers, and symbols)
when prompted on input screens by two different methods. ...
Synchro Sleeve and Hub Inspection and Reassembly (M/T)
Inspect gear teeth on all synchro hubs and the synchro sleeves for
rounded off corners, which indicate wear.
Install each synchro hub (A) in its mating synchro sleeve (B), and che ...