Forum Discussion

DamonOwner's avatar
DamonOwner
Explorer
Oct 12, 2014

Sudden drop on MPG causes?

I have not used my 2008 Windsport 34B with a Ford V10 as much as I would like. However, I recently noticed on the last few trips out, my MPG has dropped significantly. Where I was averaging 6-7 MPG, I am now consistently getting about 3mpg (over a few trips of 200-800 mile ranges).

I know this is not much information to go on but any suggestions?
Class A
  • Ductape's avatar
    Ductape
    Explorer
    Oct 13, 2014
    Temperature sensor or stuck thermostat most likely. Causes it to run rich.
  • hershey's avatar
    hershey
    Explorer
    Oct 12, 2014
    You have something drastically wrong. Forget the tire pressure and easy stuff. Have a professional mechanic take a look at it. Probably a good tuneup will provide the mechanic with the facts you need to diagnose the real problem and fix it.
  • normat's avatar
    normat
    Explorer
    Oct 12, 2014
    First thing i would check is the air filter.Second tire pressure.

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