petro can sux

  1. 0

    Question: What oil do you use?

    I'm brand new to diesels (I've only had mine for a little over a month) and am wondering what oil everybody is using and the change intervals. I used Castrol and Mobile1 in my 04 Z71, but now I am considering going with the synthetic AMSOIL 15W-40 Heavy-Duty Diesel & Marine. As far as...