Fuel Saving Tips
Acquire an aftermarket electronic fuel economy gauge such as a "Scangauge II", or an "Ultragauge". These devices can show you your instantaneous fuel economy and teach you to drive in a manner that conserves fuel. They also can display the error codes that cause the 'Check Engine' light to accumulate. they give you the ability to turn off the 'Check Engine' light once the error has been fixed.
posted by JimG on May 3, 2011
this tip works for 90% of voting Fuelly members.