See also:

Tachometer
The tachometer indicates engine speed in revolutions per minute (rpm). Do not rev engine into the red zone 1 . CAUTION When engine speed approaches the red zone, shift to a higher gear or reduc ...

Safety chains
Always use a suitable chain between your vehicle and the trailer. The safety chains should be crossed and should be attached to the hitch, not to the vehicle bumper or axle. The safety chains ...

Fuel recommendation
Use unleaded regular gasoline with an octane rating of at least 87 AKI (Anti-Knock Index) number (Research octane number 91). - Using a fuel other than that specified could adversely affect ...