Will an unleaded engine run on biodiesel?

By | Jun 16, 2009
ineedanswers asked:


If not, what kind of will, or what modifications do I need to make to my engine to run the . I have an F-150

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7 Comments so far
  1. mustang_eleanor_gt500 June 16, 2009 4:18 pm

    you would have to get a whole new engine. your 5.4 liter engine is designed only for unleaded gasoline. if you put biodiesel in it, your truck woudn’t run. The only fuel you can use is gasoline

  2. brian d June 18, 2009 6:20 pm

    you can not run bio diesel in a gas engine period no modifications in the world will allow you to run any kind of diesel in a gas engine severe engine damage WILL result.

  3. tom t June 21, 2009 6:31 am

    no it wont it has to be a diesel engine

  4. big s June 23, 2009 9:54 pm

    no! a gas engine will run somewhat on diesel but eventually it will ruin the engine. one can convert a gas engine to run on diesel ,but you best have a lot of money, it’s expensive, you have to change the heads, the crank, not to mention all of the fuel pumps, etc.so stick with gas

  5. nitesupmax June 24, 2009 6:57 am

    Your gasoline engine does not have enough compression to burn the diesel fuel properly.

  6. cpttango30 June 27, 2009 12:18 pm

    E-85 ethanol is about the only alternitve fule you will be able to run. But it would likely damage the engine over time. If you want alternitive fules to be used in your car then you need to get a car or truck with a flex fuel engine.

  7. red77chevy350 June 27, 2009 2:21 pm

    If your truck isnt a flex-fuel vehicle, the only thing you can run is pure gasoline, no E85 stuff. Diesels and gassers are two different animals.

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