To change the cruising speed

See also:

Driving on grades
● Before going down a steep hill, slow down and shift into lower gear (if necessary, use 1st gear) in order to utilize the overheating of your vehicle’s brakes. Do not make sudden downshifts ...

California fuel
If your vehicle was certified to California Emission Standards as indicated on the underhood tune-up label, it is designed to optimize engine and emission control system performance with gasoline ...

Recommended grade and viscosity
Use only engine oil with the recommended grade and viscosity. Refer to “Engine oil”. NOTE Engine oil viscosity (thickness) affects fuel economy. Oils of lower viscosity provide better fuel econ ...