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450Rfutureracer
12-02-2009, 08:17 PM
Anyone running any 110 octane in their 525? Is it getting too hot or is is it running w/o a problem?
KTM RIDAA
12-07-2009, 05:58 PM
Allot of people just mix 110 and 93 sunoco and do not have a problem

I will be trying that this upcoming race season.
04TRX400EX
12-21-2009, 09:34 PM
Straight 110 is too much for a stock engine. Even on my SX which (uses a 12.5:1 compression piston) a mix of 91 pump and 110 leaded race fuel is more than adequate. When I'm not racing a run mostly 91 and it still does fine.
ACEwrench
12-29-2009, 09:23 AM
what he said...unless you have a high compression motor you're pretty much wasting money with straight race gas...do a mix or just run premium gas.
krt400ex
04-03-2010, 09:14 PM
i'm running two gallons of c12(108 octane) to three gallons of 93 octane pump gas. it equates to 99 octane in total. bike runs real good on it. i dont feel the need to run straight race gas beings its a stock engine