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Orline 20 A chainsaw fuel oil mix

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An Orline engine  reference says "1/2 Pint S.A.E. 30 Motor Oil MS to One Gallon Regular Gasoline. DO NOT USE 10W/30 or 2 cycle Outboard Motor oil. 

For my O&R 20A chainsaw, is this true that I cannot use 2-cyle oil for the fuel mix?  If so, why?

 

 

 

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Outboard oil should never be used for lawn equipment or other 2 strokes as the oil is made differently.

Yes, you can use 2 stroke oil, just don't use outboard oil.

 

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Outboard motors are water cooled and don't generate the higher temps that air cooled motors can.  The oils are formulated differently for a reason.

I use Amsoil Saber mixed with non-ethanol fuel at 32-1 on every air cooled 2 cycle engine I have.  (100+)  From the O & R's up to the  big 118cc Sachs Dolmar saws.

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