Seafoam

WIMUSKY

Moderator
Staff member
Joined
Sep 26, 2009
Messages
20,055
Sounds like people are taking my "dumping it in" too literally. Drizzling it from side to like I used to with fogging oil on my I/O seems to be the way to go. I am burning oil, 500 miles per qt even tho there is no smoke out the exhaust. I figured Foaming it may fix a possible ring issue. Although my compression is fantastic.... But, I don't want to hijack this Topic anymore than I have already....

ps. My O/B is a 4 stroke too, but isn't an oil burner.....:)
 

BigDfromTN

Petty Officer 1st Class
Joined
May 16, 2013
Messages
268
I use Seafoam in my Merc 90 4stroke carbureted engine on my pontoon about every 3rd tank or so. If I notice it running a bit off as in a small hic up like a miss on occasion while cruising. I will dump a can in the fuel tank and it normally clears right up before that tank is gone.

I have seen it work great in older engines that had sit up for a while as well. I buy it from a friend that works at a parts house. He sells it to me at his cost and that helps a lot on the wallet!
 
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