gas rating for outboards?

[BRice]

Have an 87 Force 125hp outboard. I have been running regular (87 octane) gas mixed with the outboard oil. Someone informed me that I should be running the highest octane rated gasoline available at the pump (92 octane). Is there any truth to this. I don't want to damage anything.

 

[Hooty]

Re: gas rating for outboards?

Go to "Search" and type in "octane" and prepare yourself for an evening of reading.<br /><br />c/6<br /><br />Hooty

 

[ob]

Re: gas rating for outboards?

Quite honestly even on my sport bike I've got to use a little imagination to notice a difference between 87& 92.Kind of makes you wonder sometimes what your paying extra for.

 

[The_FoX]

Re: gas rating for outboards?

I have heard that it is better to run 87 octane. The higher the octane the higher the combustion temp. I think that I would much rather pay less and have confidence than to pay more and have to worry about damaging my engine.

 

[Spidybot]

Re: gas rating for outboards?

To help all who have 'heard' this or that, do follow Hooty's advice and read the posts about it.<br /><br />Bottom line is: Use the rated octane or the closest above if not available.

 

[DJ]

Re: gas rating for outboards?

BRIce,<br /><br />Actually, higher octane fuels run cooler. Not something you want in an outboard combustion chamber.<br /><br />Higher octane fuels are more prone to leave deposits (in an engine that was not designed for high octane) in the combustion chambers.<br /><br />Your Force will like 87 just fine.

 

[digimortal777]

Re: gas rating for outboards?

over here in the uk the only unleaded we have is 95 and 98 octane , everyone uses 95 in there cars and boats

 

[ob]

Re: gas rating for outboards?

Do you experience trouble free operation on 2 strokes with the 95 octane?Johnson/evinrude and the like.