Originally Posted By: A_Harman
My choice would be the 5w30.
I'm a big fan of Redline oils generally, but I think there are 0w40's that are as good available at less cost. For instance, given a choice between Red Line 0w40 and Mobil 1 0w40, I would go with the Mobil 1.
But for a diesel, I would go with Red Line 5w40. No second thought about it.
For a truck requiring API specs, sure, Red Line 5w40.
For those with pax diesels, there's Euro specs for that.
My choice would be the 5w30.
I'm a big fan of Redline oils generally, but I think there are 0w40's that are as good available at less cost. For instance, given a choice between Red Line 0w40 and Mobil 1 0w40, I would go with the Mobil 1.
But for a diesel, I would go with Red Line 5w40. No second thought about it.
For a truck requiring API specs, sure, Red Line 5w40.
For those with pax diesels, there's Euro specs for that.