60073 Evenrude oil & gas mix

[Scotty's Fujiboat]

What is the "proper" mixture of oil & gas & what octane should I use for my 1970 model # 60073 Evinrude 3 cylinder 60 HP? for my 20 HP, I use one pint per 6 gallons but with this engine, I do not want to risk anything... Thanks<br />Scotty

 

[DHPMARINE]

Re: 60073 Evenrude oil & gas mix

Same stuff for both engines.That's a 50:1 oil mix,and regular octane.Leaded would be better,but is not available.I know of no one using additives.<br /><br />DHP

 

[Scotty's Fujiboat]

Re: 60073 Evenrude oil & gas mix

Thanks DHP. Ive heard of leaving split shot weights in the gas can to get the lead into the motor, used to do that for older tractors I had seemed to work good. What do you think about that in an outboard???<br />Just a thought !!!

 

[JB]

Re: 60073 Evenrude oil & gas mix

WRONG!!<br /><br />Lead offers no benefit to a 2 stroke engine. It can contribute to deposits.<br /><br />In the days that tetraethyl lead was added to gasoline to raise octane and lubricate valves in 4 stroke engines most outboard makers recommended "white" (unleaded) gas.<br /><br />NEVER use leaded gas in a 2 stroke engine when unleaded is available.

 

[DHPMARINE]

Re: 60073 Evenrude oil & gas mix

Split shots in an out board tank sounds interesting,but probably not needed.Somewhere around 198 ? OMC had a bulletin about lead and two stroke outboards.Kits were available for several instances.OMC was concerned.<br />Never did install any of those kits,our motors just ran fine.(didn't blow up)<br /><br />Turned out the real problem was with four stroke engines,and valve seat recession,lots of hoopla there.<br /><br />DHP