engine oil/gas mixture

bassboatbobby1

Recruit
Joined
Apr 29, 2011
Messages
1
i just bought a mid 8os grumman bass boat. the evinrude 48 has a sticker on it saying the oil/gas mix is 100 to 1? does this mixture sound right? or is it too lean?
 

bgbass.1

Chief Petty Officer
Joined
Aug 1, 2007
Messages
558
Re: engine oil/gas mixture

use 50 to 1 the 100to 1 didnt work piston melt down
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
Messages
45,907
Re: engine oil/gas mixture

use 50 to 1 the 100to 1 didnt work piston melt down

Actually, the change back to 50:1 was due to long term storage problems (rust). Nothing to do with engine failures while running. Many are still running 100:1 30 years later because the owners didn't get the word.

100:1 didn't leave sufficient coating of oil on internal bearings and rust had a chance to get at them.

50:1 is the currently correct mix.

Good luck, and welcome to iboats. :)
 
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