Oil / Gas Ratio - 1qt. Oil to 12 gal. of Gas

[brianmerc]

Right now I am mixing 1 quart of Oil to 12 Gallons of gasoline. Does that sound about right?<br /><br />My engine smokes a little... sometimes a lot. But for the most part it's okay. How does my mix sound? Too much? Too little?

 

[quantumleap]

Re: Oil / Gas Ratio - 1qt. Oil to 12 gal. of Gas

What brand/size outboard? Most like a 50:1 ratio and you're right about there. What ratio does yours call for? A synthetic or synthetic blend oil will help with the smoking.

 

[brianmerc]

Re: Oil / Gas Ratio - 1qt. Oil to 12 gal. of Gas

It's a 1976 Mercury 1150 115HP... I think it does call for 50:1 but I'm not good at measuring things out like that. I am using Quicksilver oil... I'm not sure about the Synthetic blend though... I'd have to look at the bottle. Thanks for the input!!

 

[andrewkafp]

Re: Oil / Gas Ratio - 1qt. Oil to 12 gal. of Gas

If they are US gallons you need 1.98 pints so you are within a bee's D$%^ <br />All 2 stroke Mercs are 50:1<br /> http://www.tohatsu.com/tech_info/oil_gas.html

 

[ZmOz]

Re: Oil / Gas Ratio - 1qt. Oil to 12 gal. of Gas

Yeah, that's 48:1. If it's an older motor you should be using around 40:1.

 

[brianmerc]

Re: Oil / Gas Ratio - 1qt. Oil to 12 gal. of Gas

Great link! Thanks for the info!