Gas Mixture for 40hp Merc.

skcurry99

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Jul 14, 2001
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Need to know the proper / optimum gas mixture for 40 hp Merc. <br /><br />------------------<br />Scott
 

JB

Honorary Moderator Emeritus
Joined
Mar 25, 2001
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45,907
Re: Gas Mixture for 40hp Merc.

Need to know the vintage of your Merc. <br /><br />If it is post-1978 use 50:1, 87 octane unleaded, no alcohol and TC-W3 rated 2 stroke oil. That is 16 oz.(1 pint) oil per 6 gallons.<br /><br />Red sky. . . . <br />JB
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