mnhunter79 Posted August 26, 2010 Share Posted August 26, 2010 Can i use 80-90 gear lube as a substitute for lower unit oil in a 15 HP johnson? Quote Link to comment Share on other sites More sharing options...
CAMAN Posted August 26, 2010 Share Posted August 26, 2010 No, lower unit lube has additives that prevent foaming and breakdown from water that may enter. A tube of it is so cheap its not worth the risk IMO. Quote Link to comment Share on other sites More sharing options...
mnhunter79 Posted August 27, 2010 Author Share Posted August 27, 2010 Thats what i wanted to know. thanks. better to be safe than sorry i guess. Quote Link to comment Share on other sites More sharing options...
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