5.9 or 6.7

[RamHondo]

here anything about Mobil Delvac?

 

[nlambert182]

It's probably fine. Been around a long time and a lot of folks use it. We didn't run it in our shop but we only sold Rotella since we worked on a lot of Cummins trucks. I just stick with what I know personally. There's not much of a cost saving so I've never considered it from that perspective either.

 

[RamHondo]

Thank you