See also:

Tire tread
WARNING Although the applicable federal motor vehicle safety laws consider a tire to be worn when the tread wear indicators (TWI) become visible at approximately 1/16 in (1.6 mm), we recomm ...

General notes
WARNING If the vehicle becomes trapped in snow, ensure that snow is kept away from the exhaust pipe and from around the vehicle as long as the engine is running. Otherwise, poisonous carbon ...

Drive sensibly – save fuel
Observe the following tips to save fuel: The tires should always be inflated to the recommended tire pressure. Remove unnecessary loads. Remove roof racks when they are not needed. Warm up t ...