Just a disclaimer, I am not an expert in these matters and this is just one analysis. Also comparing these two oils is like comparing apples and oranges. They are not in the same class.
So, that being said, I just got back my Blackstone report. The first one on the sheet is Mobil 1 Turbo Diesel Truck 5W40 and the other one is Amsoil 5W30 Signature Series.
So, that being said, I just got back my Blackstone report. The first one on the sheet is Mobil 1 Turbo Diesel Truck 5W40 and the other one is Amsoil 5W30 Signature Series.