1990 Force 150HP and synthetic oil

Macattack

Seaman
Joined
Mar 22, 2003
Messages
62
I've read past posts about synthetic oil and I'm left confused. Will a blend or 100% synthetic oil do harm to my Force 150?
 

roscoe

Supreme Mariner
Joined
Oct 30, 2002
Messages
21,657
Re: 1990 Force 150HP and synthetic oil

No.<br /><br />All the rantings on the petroleum/synthetic debate are over which is best, which seems to be a matter of opinion and contradicting "facts" by the two sides.<br /><br />
Use a NMMA rated TC-W3 oil, either petrol based or synthetic. That is all that is needed for your Force.
Whatever oil you use, you should decarb annually according to your owners manual.<br /><br /> Decarb Process
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: 1990 Force 150HP and synthetic oil

Probably not, Mac.<br /><br />See the article on oil type in the FAQ section.<br /><br />Moving to General Outboard.
 
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