Mixing fuels for higher octane

3 replies to this topic
  • GetSumBaby

Posted November 13, 2004 - 08:46 AM


I would like to runa little higher octane than the 91 pump. What kind of octane can I get by mixing Ultimate-4 or 110 red with 91?
50/50 or 66/33(pump/race)


  • ncmountainman

Posted November 13, 2004 - 09:04 AM


from what i gather you just do the math and thats what it is. like 91 mixed 50/50 with 110 would be 100.5 octane :cry:

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  • grayracer513

Posted November 16, 2004 - 10:41 AM


If you don't need it, raising the octane will do nothing for you. Your only improvement here is that you might end up with a better energy content by adding U4 to your current pump gas.

To understand the octane issue better. read through this:


  • 226DAD

Posted November 16, 2004 - 11:20 AM


More octane does not equal more power, U4 may boost perfomance tho'.

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