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Poor gas mileage

  

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1993 f150 xl 4x4 inline6

My mpg is like 11 and I know it’s supposed to be 14-18 ok the highway. I drive mostly 55-65 mph and get 11. 

was thinking about trying the crf 505 and see if that helps, would it actually do anything?

stock tires and gearing, and the exhaust has been cut but after the muffler 


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Posted by: @aedanhickey

I know it’s supposed to be 14-18

That was when it was new.

Posted by: @aedanhickey

was thinking about trying the crf 505 and see if that helps, would it actually do anything?

The carbon clean product will clean excess carbon from your engine and the fuel system cleaner will clean your fuel system.

There are many variables when it comes to gas mileage and that thing is over 30 years old, the engine could just be wearing out. (You failed to mention miles on the odometer.)

Are there any indications of an overly rich mixture, like carbon deposits on the spark plugs. Oil burning? Any OBD1 codes?


@chucktobias hey sorry it has 150k miles, no check engine lights, and it does not burn oil. I was gonna give it a tune up and see if that helps. (New cap and rotor, plugs, plug wires, fuel filter) I already changed oil and added an air filter.


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please check the FAQ under "How do I improve my fuel economy?"


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