96 Evinrude 112 SPL fuel octane

[Chappie]

I have read both (forum and service manual) concerning recommended fuel and have reached a fork in the river so here it is.....What octane rating of fuel should i run in my 1996 112SPL hp Evinrude for optimum performance and most of all....to make this baby last? Your experience is greatly appreciate.

 

[DJ]

Re: 96 Evinrude 112 SPL fuel octane

Chapster,<br /><br />Your engine requires no more than 87 octane with a good TCW-3 rated oil mixed at 50:1.<br /><br />Premium fuels will not help anything and will only add to combustion chamber deposits.

 

[Chappie]

Re: 96 Evinrude 112 SPL fuel octane

DJohns,<br /><br />This is exactly what i will do. Speaking of deposits in combustion chamber, what about this whole de-carbing thing?? Mix in fuel or spray in and when.

 

[DJ]

Re: 96 Evinrude 112 SPL fuel octane

Chapster,<br /><br />If you are unfamiliar with the engine-new to you.<br /><br />I would do the big decarb. first. <br /><br />Do the search on this board using decarb. as your search words. There are some very detailed explanations of the process.<br /><br />After that, you should be good.<br /><br />I run a little Sea Foam in the fuel per their instructions.<br /><br />It does two things.<br /><br />1. Stabilizes the fuel between trips.<br /><br />2. Aids in keeping combustion chambers clean.