Is high octane gasoline better for my 2014, Softail Slim Harley Davidson?
#12
Yea, in Gardnerville, Nevada, they have 105 octane gas for sale. I think it’s like $7.80 a gallon. I just wondered if it was good to use a tank of high octane here and there, but I’ve read a bit since then about octane. I don’t think it would be good for my bike. It would at least do nothing, and at most could mess with my mileage negatively.
#13
I always look for non-ethanol premium. There's an App called Pure Gas that finds stations near your location. I ran into something yesterday that I've never seen before. An overpriced but convenient station still has non-Ethanol premium, but the sticker now says 90 Octane instead of 91. I've never seen 90 anywhere before.
#15
High octane gas prevents detonation in high compression engines...if your motor does not need it...it will not make it run better.
Detonation can be caused by other things...like high temperatures. The reason Harley recommends high octane fuel is...more resistance to engine damaging detonation if your engine is on the verge of overheating.
Detonation can be caused by other things...like high temperatures. The reason Harley recommends high octane fuel is...more resistance to engine damaging detonation if your engine is on the verge of overheating.
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lh4x4 (05-01-2018)
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