DOT Quality Grades
Treadwear
Traction AA A B C
Temperature A B C
Conform to Federal Safety Requirements
All passenger car tires must conform to
Federal Safety Requirements in addition to
these grades.◀
See also:
Driving pleasure
Driving the X6 M changed the way I looked at this vehicle.
Some of that gangly look disappeared as the vehicle's performance matured my
perception. It has a toughness, a meanness too that it didn' ...
Socket for OBD OnboardDiagnosis
Position
There is an OBD socket on the driver's side for
checking the primary components in the vehicle
emissions.
Emissions
► The warning lamp lights up:
Emissions are deteriorati ...
Two additional gears mean threefold progress: quicker shifts, greater
smoothness, enhanced efficiency.
The wider spread of ratios allows the engine to run at lower speeds, often in
the "tallest" gear, 8th. Yet even with this wider spread, the steps between
adjacent gears are reduced; in t ...
