From Synthetic 2 Cycle Oil to Regular 2 cycle?

[Ki Ki]

Will this hurt an old outboard motor? What if a small amount is mixed in a 6 gallon tank. I.e. stop at gas station pick up some while fueling up, they have regular, but 2 gallons left are synthetic?

 

[cougar1985]

Re: From Synthetic 2 Cycle Oil to Regular 2 cycle?

no, it will not hurt your motor.assuming its marine grade, not air-cooled motors grade.

 

[d.boat]

Re: From Synthetic 2 Cycle Oil to Regular 2 cycle?

I believe that all TCW3 oils, whether synthetic or not, are totally compatible.