See also:

Coolant
The coolant should be changed at the intervals specified in the maintenance schedule. ...

Check Spark Plugs and Ignition System
Inspect your spark plugs and replace them if necessary. Also check all ignition wiring and components to be sure they are not cracked, worn or damaged in any way. ...

Driving for economy
You can save fuel and get more miles from your car if you follow these suggestions: o Drive smoothly. Accelerate at a moderate rate. Don't make "jack-rabbit" starts or fullthrottle shift ...