Synthetic and regular oil combo.

[Glenn Romain]

Seems i have a few left over quarts of synthetic oil with a couple of onces left in them is it alright to mix them with regular TCW3 outboard motor oil . I am mixing 24 to 1 for a 1963 Johnson 18hp .

Your input is appreciated

 

[Al-53]

Re: Synthetic and regular oil combo.

yes..they made blends..consisting of regular and synthetic blended....as long as they are both tc-w3 oils

Al

 

[Chris1956]

Re: Synthetic and regular oil combo.

Agreed, you motor was originally made to run on SAE 30 non-detergent motor oil. It will run fine on most any kind of TCW-III oil..