See also:

Department Of Transportation Uniform Tire Quality Grades
The following tire grading categories were established by the National Highway Traffic Safety Administration. The specific grade rating assigned by the tire’s manufacturer in each category is sh ...

Gross Vehicle Weight Rating (GVWR)
The GVWR is the total allowable weight of your vehicle. This includes driver, passengers, cargo and trailer tongue weight. The total load must be limited so that you do not exceed the GVWR. Refer t ...

Maintenance Procedures
The pages that follow contain the required maintenance services determined by the engineers who designed your vehicle. Besides those maintenance items specified in the fixed maintenance schedul ...