Roger Lee Posted September 3, 2010 Report Share Posted September 3, 2010 Hi Guys,, Question: Which fuel are you more likely to see water in, 100LL or our present day 91 Oct when you catch your sample down at the gascolator? Why? p.s. If you find it in one verses the other what should you do? Link to comment Share on other sites More sharing options...
chanik Posted September 3, 2010 Report Share Posted September 3, 2010 91 Oct since it often has alcohol which absorbs water. Worst case, if you pull out all the phase seperated water/ethanol (vodka) then 91 is more like 86 Oct since that is about the octane boost for a 10% ethanol mix. So drink the vodka and add at least 30% 100LL to bring the octane back up to 91 or better. Link to comment Share on other sites More sharing options...
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