See also:

Uniform tire quality grading
DOT (Department of Transportation) Quality Grades: All passenger car tires must conform to federal safety requirements in addition to these grades. Quality grades can be found where applicable on ...

Tachometer
Tachometer The tachometer indicates engine speed in revolutions per minute (rpm). Do not rev the engine into the red zone 1 . When engine speed approaches the red zone, shift to a high ...

Measurement of weights
Secure loose items to prevent weight shifts that could affect the balance of your vehicle. When the vehicle is loaded, drive to a scale and weigh the front and the rear wheels separately to de ...