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F150 Gas mileage

Discussion in 'Trucks and Trailers' started by John Rayl, Mar 1, 2001.

  1. John Rayl

    John Rayl LawnSite Member
    Messages: 12

    I just bought a 1990 F150 with an 8ft bed for my business, and I noticed that it seems to be using a LOT of gas. I've found no leaks, and the truck seems to run great, but it's only getting about 10-12mpg! This is combo driving on the Highway and City, mostly Highway, though. It has a 300c.i. fuel injected 6 cyl, with the T-18 4 speed. Unless I have it loaded, I don't use 1st starting out. Is this normal mileage for this engine?
  2. BobbyBcuttin

    BobbyBcuttin LawnSite Member
    Messages: 115

    John my dad has a 79 f150 2 wheel drive 8 ft bed that has the orginal 300 in it and he gets around 17 mpg he's doesn't get in any hurry thou my 93 f150 4*4 get's right at 10 mpg yours sounds a little low unless you have a heavy foot.good luck Bobby
  3. 65hoss

    65hoss LawnSite Fanatic
    Messages: 6,360

    Are your mileage #'s when pulling or just the truck itself?
  4. BobbyBcuttin

    BobbyBcuttin LawnSite Member
    Messages: 115

    My dad's are truck alone mine are with 8*18 enclosed trailer
  5. 65hoss

    65hoss LawnSite Fanatic
    Messages: 6,360

    That is probably correct since your pulling a very heavy trailer with a 6 cyl. The 6 cyl. makes plenty of power, it just has to run more rpms and work a little harder to be efficient. Probably the truck has a pulling gear ratio in it. All these things add up. I would think your mileage is right on track.
  6. Double D

    Double D LawnSite Member
    Messages: 142

    That is normal milage for that motor. It is bigger than the V8 that is in my newer Ford truck (289). That engine is known for being bullet proof and pulling like a pack of angry mules, not for fuel economy.

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