See also:

Fuel Filter
A clogged filter can limit the speed at which the vehicle may be driven, damage the emission system and cause hard starting. If an excessive amount of foreign matter accumulates in the fuel tank, ...

Crankcase Emission Control System
The positive crankcase ventilation system is employed to prevent air pollution caused by blow-by gases being emitted from the crankcase. This system supplies filtered fresh air to the crankcase th ...

To help prevent corrosion
You can help prevent corrosion from getting started by observing the following: Keep Your Car Clean The best way to prevent corrosion is to keep your car clean and free of corrosive materials. At ...