See also:

Brake fluid
WARNING Over a period of time, the brake fluid absorbs moisture from the air; this lowers its boiling point. If the boiling point of the brake fluid is too low, vapor pockets may form in t ...

The first 1000 miles (1500 km)
The more you look after the engine when it is new, the more satisfied you will be with its performance in the future. Drive at varying vehicle speeds and engine speeds for the first 1000 miles ...

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 ...