Race gas

RONJ OSE
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RONJ OSE
The local shell down the street sells “100 octane race fuel”
I am having a little detonation going on in my 125 and was wondering if this is worth the 8 bucks a gallon, could I mix this with 93 or would that not improve the fuel!
Also was reading that the maxima castor 927 separates in 100 octane is this true
If so what else do y’all recommend
It is cheeper then vp so just wondering
Thanks for any input
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kb228
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kb228 5/14/2019 4:49pm
5/14/2019 4:49pm
That gas should work just fine. Best thing is to try it and see. Mix 50/50 and see if it helps. If not run strsight 100.

As far as the oil, you should be shaking your gas anyway to keep it mixed. I wouldnt worry about seperation
Brett Campbell 5/15/2019 6:58am
5/15/2019 6:58am
Castor 927 can separate if it gets too cold. I have had it happen to me and it states that it can in the literature.
RONJ OSE
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RONJ OSE 5/15/2019 7:52am
5/15/2019 7:52am
Brett Campbell wrote:
Castor 927 can separate if it gets too cold. I have had it happen to me and it states that it can in the literature.
About how cold???

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exbmxmx
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exbmxmx 5/15/2019 4:17pm
5/15/2019 4:17pm Edited Date/Time 5/15/2019 4:18pm
If you mix the 100-octane race gas 50:50 with ethanol based pump fuel, you should not have any 2-stroke oil separation.
If you live near an airport, you can get 100-octane Avgas for hopefully much cheaper. Avgas near me is $3.80/gallon.
jlv148
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jlv148 5/15/2019 7:21pm
5/15/2019 7:21pm
When ethanol separates the oil stays with the gas. Since the ethanol is heavier it sinks to the bottom of the tank and you wind up running on pure ethanol with no oil. It's not likely to separate as long as there is no water in the gas.

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