Type of octane to use?

[plztellme]

I have a 1990 Force O.B. 50 h.p. 2 cycle. What octane gas is best to use?

 

[QC]

Re: Type of octane to use?

I moved this to the Force OB section We try and keep the boat section free of engine topics. Good luck!!!!

 

[NYBo]

Re: Type of octane to use?

The manual for my '88 lists 87 octane, with E10 being acceptable.

 

[eurolarva]

Re: Type of octane to use?

If you can get non oxygenated gas go for that. It typically comes in a medium to high octane. If not stay with 87 octane gas. Higher octane gas will give you more issues with carbon build up and will not burn as efficiently as lower octane gas.

 

[fucawi]

Re: Type of octane to use?

The only difference with octane ratings is that a higher octane burns slower....stick to what the maker says as the timing is related to the octain rating.