Oil viscosity
The engine oil viscosity or thickness changes with temperature. Because of this, it is important to select the engine oil viscosity based on the temperatures at which the vehicle will be operated before the next oil change. Choosing an oil viscosity other than that recommended could cause serious engine damage.
See also:
Wheels and tires
...
Underbody
In areas where road salt is used in winter, it is
necessary to clean the underbody regularly in
order to prevent dirt and salt from building up and
causing the acceleration of corrosion on the unde ...
Interior lights
Do not use for extended periods of time
with the engine stopped. This could
result in a discharged battery. ...