What can cause poor gas mileage on a Ford F-150?
Get some mass air flow sensor cleaner and clean it. Do not touch the sensor elements with anything, just spray them and let it dry for a few minutes and reinstall. A bad oxygen sensor can also cause poor mileage, but that will usually light up the check engine light.
What causes a sudden drop in fuel efficiency?
If the CEL is on have the codes checked and it will probably lead you to your problem. Such a drastic drop in mileage is often associated with a bad 02 sensor. I’ve had them go bad and cause a 25-35% drop in fuel efficiency. keith July 6, 2016, 2:38am #4 Did you have anything done to the car just before the mileage dropped?
Why does my gas mileage drop after an oil change?
Before an oil change, always make sure that you get the right viscosity for your vehicle. Most vehicle owner’s manuals state exactly what type of oil to use for optimum mileage, with names like 10W-30 or 5W-30. If you get the wrong oil you may notice a drop in mpg and overall poor performance, especially in extreme heat or cold.
Why did my mpg drop on my 2010 fit?
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). Is it just the cold environment? Car is parked in a garage when not driven
Why does my Ford PowerStroke suddenly drop in mileage?
The reason I reached out is the truck has only ever gotten between 14 and 16mpg for the last Nine years I’ve had it. Winter, summer, loaded, empty. It always returned about the same mileage. To get such a sudden drop concerned me and made me wonder about injectors, fuel pump etc. or could it be a sensor for maf, pressure, temp etc.
If the CEL is on have the codes checked and it will probably lead you to your problem. Such a drastic drop in mileage is often associated with a bad 02 sensor. I’ve had them go bad and cause a 25-35% drop in fuel efficiency. keith July 6, 2016, 2:38am #4 Did you have anything done to the car just before the mileage dropped?
How much mileage does a Ford PowerStroke get?
The truck had a load of tools on it for most of its life. I used it as my instrumentation service truck in the oil patch. It weighed about 10.5k pounds. day in day out. The reason I reached out is the truck has only ever gotten between 14 and 16mpg for the last Nine years I’ve had it.
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). Is it just the cold environment? Car is parked in a garage when not driven