3 ms·
> Cars don't run on 10W-40. Why come?
by peteradio 4y ago
> Cars don't run on 10W-40.
Why come?
- mikestew 4y agoI imagine the fuel injectors have a hard time vaporizing something so viscous. Feel free to put a few quarts/litres of 10W-40 in your crankcase, however.