Fuel for 2003 Sportster LE

[jkdpete]

Hello all. The manual for my boat says to use 87 octane in the boat.

The person at the Sea-Doo marina recommends I put 91 octane in it, “since jet boats like higher octanes.”

Any other recommendations?

 

[Raven888]

I always use 91 or even 93 and 94 in my bikes, boats, chain saws etc. For the relatively small amount I have to buy in a year it doesn't cost much more overall.

 

[mikidymac]

87 is all you need and anything more than that is just throwing money away. Seriously, seadoo says 87 so run 87. If you can get non-ethanol that would be even better.

 

[drjack]

I prefer to stick with lowest ethanol free fuel possible. Ethanol absorbs moisture and hardens rubber components.
All high octane fuels do not contain ethanol. Also, most marinas will sell ethanol free fuel of any octane level.

 

[jkdpete]

Thank you gentlemen. I appreciate it.

 

[Sportster-2001-951C-Stock]

I run regular pump gas in my carbed 951, I think it's 87 octane. Some places in us regular is 84/85? don't do that. I make certain it's only fresh fuel, premium won't hurt it though, provides wider margin of safety.