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Octane for 225?

Discussion in 'Early CJ5 and CJ6 Tech' started by SuperTodd, Mar 15, 2008.

  1. SuperTodd

    SuperTodd Member

    what is recommended for the 225, I have been putting super, but with reg now $3.60:cry: a gallon I don't know if I can afford super. I'm just glad my jeep gets better milage than my f150. Jeeps been seeing a lot more road time...
     
    SuperTodd, Mar 15, 2008
    #1
  2. StraightToPlaid

    StraightToPlaid Ludicrous speed!!!!

    Re: Which Octane Gas Should I Use

    My 225 seemed a little happier with higher octane, I could just be imagining things though.

    For the F-head, I thought that was originally designed to run in a military application. Most military engines can run off dirty nasty low octane gas, so I figure generic 87 octane would do it just fine.
     
    StraightToPlaid, Mar 15, 2008
    #2
  3. Mcruff

    Mcruff Earlycj5 Machinist

    Re: Which Octane Gas Should I Use

    225 runs fine on 87 octane. Never put premium in mine in the 15 years I've owned it. If it doesn't knock on 87 octane anything more is a waste of money.
     
    Mcruff, Mar 15, 2008
    #3
  4. sparky

    sparky Sandgroper Staff Member Founder

    Compression ratio on a 225 is pretty low, 87 oughta be acceptable, mine runs fine on it.
     
    sparky, Mar 15, 2008
    #4
  5. russo

    russo Hope is not a method


    Your F150 must have a hole in the tank R) My Ram 1500 Hemi gets two more MPG than the JEEP.
     
    russo, Mar 16, 2008
    #5
  6. tinker

    tinker GNGPN

    mine too.
     
    tinker, Mar 16, 2008
    #6
  7. Roboter

    Roboter Klaatu Barada Jeepto

    I'm gonna feed mine used cooking oil if gas goes over $4 gal. :mad:
     
    Roboter, Mar 17, 2008
    #7
  8. sparky

    sparky Sandgroper Staff Member Founder

    You need a higher compression ratio for that, alot higher, in fact I think they're called diesels. ;)
     
    sparky, Mar 17, 2008
    #8
  9. StraightToPlaid

    StraightToPlaid Ludicrous speed!!!!

    You'll have better luck with a natural gas conversion. It's actually not that hard.
     
    StraightToPlaid, Mar 17, 2008
    #9
  10. Roboter

    Roboter Klaatu Barada Jeepto



    ;)
     
    Roboter, Mar 18, 2008
    #10
  11. Roboter

    Roboter Klaatu Barada Jeepto

    ;)
     
    Roboter, Mar 18, 2008
    #11