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mercury 2 stroke outboard oil mixture question
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<blockquote data-quote="Pappy" data-source="post: 412731" data-attributes="member: 3278"><p><span style="font-size: 18px">As far as an engine running lean on a heavy oil ratio? Pure bunk. </span></p><p><span style="font-size: 18px">If manufacturers recommend doubling the oil for any racing situation on a bone stock carbureted engine then that engine is run at WOT for whatever period necessary for the event. </span></p><p><span style="font-size: 18px">At WOT the engine has to get rid of a massive amount of heat. Do you think a manufacturer would recommend this if they even thought that a richer oil mix would lean out the engine? That is a boat ramp myth.</span></p><p><span style="font-size: 18px">All manufacturers that used carburetors set the high speed jets on the rich side of optimum just for safety sake and a reduction of warranty claims.</span></p><p><span style="font-size: 18px">Want to know what is currently leaning your engine anyway? Ethanol fuel. </span></p><p><span style="font-size: 18px">10% ethanol mix in gasoline leans the average mixture 6%. Do the math! Has not made a dent in failures. </span></p><p><span style="font-size: 18px">In short.........oil is cheap and powerheads are not. Additional oil can and will protect your engine better should you get debris in your carbs or an overheat. </span></p></blockquote><p></p>
[QUOTE="Pappy, post: 412731, member: 3278"] [size=5]As far as an engine running lean on a heavy oil ratio? Pure bunk. If manufacturers recommend doubling the oil for any racing situation on a bone stock carbureted engine then that engine is run at WOT for whatever period necessary for the event. At WOT the engine has to get rid of a massive amount of heat. Do you think a manufacturer would recommend this if they even thought that a richer oil mix would lean out the engine? That is a boat ramp myth. All manufacturers that used carburetors set the high speed jets on the rich side of optimum just for safety sake and a reduction of warranty claims. Want to know what is currently leaning your engine anyway? Ethanol fuel. 10% ethanol mix in gasoline leans the average mixture 6%. Do the math! Has not made a dent in failures. In short.........oil is cheap and powerheads are not. Additional oil can and will protect your engine better should you get debris in your carbs or an overheat. [/size] [/QUOTE]
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mercury 2 stroke outboard oil mixture question
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