M1 syn 5w40 vs others

[225hipo]

I have some class 7 trucks and would like to know how M1 5w40 diesel syn. oil compares to the others?

 

[buster]

Mobil 1 SUV and Delvac 1 are among the most highly regarded 5w-40's you can buy. Checkout www.delvac.com

Other brands such as Amsoil, Redline and Schaeffer's are excellent as well but Delvac 1's reputation is second to none IMO. You can buy the M1 SUV formula at Walmart too, which makes even more ideal.

 

[mettech]

It appears to me that MC 15W-40 is one of the best oils you can use... It just doen't get a lot of press..