1972 eska 1747b oil to gas ratio?

bratten82

Recruit
Joined
Sep 5, 2008
Messages
1
I have a 72 eska 1747-b and was just wondering what the oil to gas ratio is. someone told me it is 24:1,but i just want to make for sure.
 

05GlastronSX

Chief Petty Officer
Joined
May 29, 2005
Messages
437
Re: 1972 eska 1747b oil to gas ratio?

with todays quality of oils, you can run 50:1. 3 gallons of gas, 8 oz of oil. 6 gal of gas, 16 oz of oil. Just make sure it TCW-3 rated.
 

steelespike

Supreme Mariner
Joined
Apr 26, 2002
Messages
19,069
Re: 1972 eska 1747b oil to gas ratio?

My 89 aftermarket service manual indicates 70-73 motors at 24:1 using a good grade of outboard oil.74 on at 32:1 if TCW3 rated oil is used.I would think you could do 32:1 on your 73 with tcw3 oil.
 

05GlastronSX

Chief Petty Officer
Joined
May 29, 2005
Messages
437
Re: 1972 eska 1747b oil to gas ratio?

i use 50:1 in my 1966 mercury 3.9 with no problems whatsoever. I guess its your call.
 
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