See also:

DOT (Department of Transportation)
DOT marked tires fulfill the requirements of the United States Department of Transportation. ...

Checklist after driving off-road
WARNING If you notice sudden significant vibrations or unusual handling performance or if you suspect that damage has occurred to the vehicle, you should activate the hazard warning lamps, g ...

Purity
Assuring the purity of DEF is particularly important with respect to avoiding malfunctions in the exhaust gas aftertreatment system. If DEF is pumped out of the DEF tank, e.g. during repair wor ...