Do you use premium gas in your Sportster?

[boomerguy]

Originally Posted by Toejam503

What's nice about an 883 is that you can run 87 octane, where as a 1200 needs 91+ octane. I read somewhere that the MoCo designed all their V twins, before the M8, to run on 93 octane (except the 883). It's unreal how much more powerful and better fuel mileage, my 1200 feels and gets, when I run 94 octane. I avoid anything ethanol.

This is another thing I like about my "small" Harley 883 motor with low compression. It's like an anvil and tractor motor combined. It's not the fastest but it will probably run the longest of all the current Harley motors. The word, "bulletproof", best describes it. I hope Harley doesn't ever replace it because they would be "fixing something that isn't broken". My motor even has a carburetor which makes me like it even more.

[Jarlaxle]

Originally Posted by Toejam503

What's nice about an 883 is that you can run 87 octane, where as a 1200 needs 91+ octane. I read somewhere that the MoCo designed all their V twins, before the M8, to run on 93 octane (except the 883). It's unreal how much more powerful and better fuel mileage, my 1200 feels and gets, when I run 94 octane. I avoid anything ethanol.

The manual for my 2011 and the one for 2017 both call for 91 in all SPortsters, 883 or 1200.

[glbsportster]

I use only Chevron premium......if not available then any premium top tier gasoline.....runs as smooth if not smoother than it should.