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2 cycle oil change??? #13536276 04/27/20 04:58 PM
Joined: Oct 2016
Posts: 8
Jas415 Offline OP
Green Horn
OP Offline
Green Horn
Joined: Oct 2016
Posts: 8
I bought my boat, Triton 191LTS, and motor in 2007. The motor has maybe 55-60 hours on it. Yep, I dont use it often enough. Optimax 150 saltwater. The oil in the tanks is pretty old! I did add a bit some few years ago. Have used the boat several times in the last 4 weeks. First time when I cranked it, there was a bit of light white smoke??? coming out, just a tiny bit at idle. Motor ran great and after going across the lake it was not smoking anymore that day. Third and fourth times I used it the same thing, a very small bit of what appeared to be almost white smoke coming out at idle. After up the rpms it cleared out totally.

So, the question; is the oil too old and should it be replaced - should I toss that old oil and put new oil in? It has two small tanks with about a half gallon in each and they are 3/4's full. I read that the shelf life of oil is about 5 years sealed! So I would have to assume that if I dont use the engine enough to keep refilling it with new oil, it could be fouling or bad?

Or, is there another issue? I dont think it was fog the cold water and warm engine or similar.


Re: 2 cycle oil change??? [Re: Jas415] #13536335 04/27/20 05:32 PM
Joined: Jan 2005
Posts: 8,324
Pat Goff Offline
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Joined: Jan 2005
Posts: 8,324
You're fine it's not like gas it takes years for oil to go bad. Everything you mentioned sounds normal.

Pat Goff
Seadrift TX
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