Bros, I would like to ask got some Synthetics are rated xxW-40 and some Semi-Synthetics rated xxW-40.

Examples are :

-Torco SR 1r, 10W-40 (Fully Synthetic)
-Torco TR 5, 10W-40 (Semi Synthetic)

So,,,, does that mean it doesn't matter the numbers so long its rated right for my engine?


Thanks a lot.

This post has been edited by Alejandro Sosa: Jul 16 2014, 10:26 PM