10-15-2020, 05:29 PM
|
#31
|
Senior Member
Join Date: May 2010
Posts: 2,789
|
Re: Marvel Classic Motor Oil
Quote:
Originally Posted by tubman
It is my understanding that any motor oil that has a "50" in it's viscosity (e.g. 20W50 mentioned above) has adequate zinc in it. When I was racing my dirt car with the hemi, I used Mobil 1 15W50 that had 1200-1300 ppm zinc, just like the bad old days.
I will admit I haven't checked lately.
|
Never knew that
|
|
|