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No, 87 tends to remain a liquid longer aiding in cold weather starting. 91 is excellent warm weather fuel. There is serious debate about whether 91 is needed or not in these GY6 scooters. I use 91 because it makes the engine run smoother and I look at it as cheap insurance against catastrophic damage. If it runs smoother, that is a friction reduction which means more power
With higher octane fuels you can get carbon buildup in some engines, Ford is strongly prone to this. But in others like Audi & Mercedes it rarely happens.
Glad your changes are allowing you to ride more!
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