Thoughts on switching to Midgrade fuel?

[LDB]

Originally Posted by Jay2TheRescue

Harley recommends 91 octane fuel, but since I'm not running the bike hard (I'm very rarely using more than 25% throttle), and it is computer controlled fuel injection, what are everyone's thoughts on me switching to 89 octane fuel? Saving $0.15/gal would be nice.

I see you have 80 fills so far. How long has it taken to go 80 fills? At 4 gallons per fill you'd save 60 cents or a total of $48 so far. At a fairly typical Harley 40mpg that's 160 miles per fill or around 13k miles so the $48 is about a penny every 3 miles. I agree with saving money whenever possible but is it enough in this case for any possible risk? Disclaimer, all arithmetic done this early before any breakfast is subject to who knows what sort of insane errors.