What is best oil fuel mixture for a 1970 mercury 500 motor. Right now I am mixing 50 to 1 .
M midgetme23 Seaman Apprentice Joined May 15, 2013 Messages 34 Jun 25, 2013 #1 What is best oil fuel mixture for a 1970 mercury 500 motor. Right now I am mixing 50 to 1 .
GA_Boater Honorary Moderator Emeritus Joined May 24, 2011 Messages 49,038 Jun 25, 2013 #2 Re: mercury 500 fuel help That's the recommended mix - 50:1.
