If it’s time for the recommended service for a tune up, don’t delay. If you’re not sure if the date has passed, get your vehicle checked right away. The longer you wait the more fuel you’ll waste.
Fixing a serious maintenance problem, such as a faulty oxygen sensor, can improve your mileage by as much as 40 percent.
The exact adjustments that could be made for fuel economy and efficiency related to your engine tune up/maintenance are too many to list. Ask your mechanic about what could be done to make or keep your vehicle fuel efficient.