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 shown on the sidewall of the tires on your vehicle.
All passenger car tires must conform to Federal safety requirements in addition to these grades.
See also:
Gasoline/Oxygenate Blends
Some fuel suppliers blend unleaded gasoline with oxygenates such as Ethanol.
Fuels blended with oxygenates may be used in your vehicle.
CAUTION!
DO NOT use gasoline containing Methanol or gasoline ...
MMT In Gasoline
MMT is a manganese containing metallic additive that is blended into some gasoline
to increase the octane number.
Gasoline blended with MMT offers no performance advantage beyond gasoline of
the ...
Synthetic Engine Oils
Synthetic engine oils can be used if the recommended oil quality requirements
are met, and the recommended maintenance intervals for oil and filter changes are
followed. ...