What does it mean when Your MPG drops 20%?
What does it mean when Your MPG drops 20%? BTW, there is a code if the ECT (engine coolant temp) does not come up withing a certain time frame. You could also have a fuel leak. My 2010 FIT dropped 20% immediately upon moving to a much colder climate. I checked tire pressure and changed air filter, changed gas stations. Still off by 20% ( 10 miles per gallon). What should I do if my gas mileage drops? It's important to maintain your vehicle with regular tuneups and home checks to make sure you're getting the most out of your...