Does 91 gas burn slower?
These octane level numbers (87, 89, 91, etc.) Lower octane gas burns quicker than higher octane, and so require less energy to ignite. However, this also means that lower octanes burn more quickly in high pressure environments, and can have a greater tendency to knock.
Does 91 octane improve performance?
After all, “high-octane” is often synonymous with increased power and performance. The 91-octane gas should, they think, provide improved fuel economy and power. In fact, octane has nothing to do with energy content or quality – it’s a measurement of the gasoline’s ability to resist engine knock.
How long does 91 octane fuel last?
In general, pure gas begins to degrade and lose its combustibility as a result of oxidation and evaporation in three to six months, if stored in a sealed and labeled metal or plastic container.
What do you run 87 or 91 octane gas?
When choosing gasoline the upgrade from 87 to 91 would be a good choice. Just make sure you purchase the fuel from a place that has fresh fuel. Lot’s of the stations don’t sell much of the high priced fuel >>>>. I’m still a little confused about this “rate of burn” thing.
Is it safe to run 87 octane in a Harley Davidson?
There is no official standard, but most motorcycle riders consider a ratio of 10:1 or higher as “high compression”. Generally speaking, you should be safe to run 87 octane on a 103ci Twin Cam Harley because its compression ratio is less than 10:1.
Is it safe to run 87 octane on a 103ci twin cam?
Generally speaking, you should be safe to run 87 octane on a 103ci Twin Cam Harley because its compression ratio is less than 10:1. But with the 1200cc Evolution and the 1247cc Revolution, use high octane.
What’s the shelf life of 87 octane gas?
Last few years refineries have been alternating the petroleum process to meet EPA, therefore, the gas have much shorter shelf life. Octane 87 will lose a couple of points over a couple of weeks and more the longer unused it will lose more points, the question is, how do we know how fresh or old are Octane 87 gas on the mountains?