See also:

Containing running costs and pollution
Some suggestions which may help you to keep the running costs of the vehicle down and lower the amount of toxic emissions released into the atmosphere are given below. ...

Gasoline/Oxygenate Blends
Some fuel suppliers blend unleaded gasoline with oxygenates such as 10% Ethanol, MTBE, and ETBE. Oxygenates are required in some areas of the country during the winter months to reduce carbon mono ...

Exhaust System
The best protection against carbon monoxide entry into the vehicle body is a properly maintained engine exhaust system. If you notice a change in the sound of the exhaust system; or if the exhaust ...