Mobil 1 Truck and SUV version

[Joe_Black]

Always look on the back at the API/SAE ratings to see what you're getting. The Truck & SUV was originally a "consumer" packaging of Mobil Delvac-1, the synthetic diesel motor oil, but was recently changed to just a different multigrade formulation.

What weight and grade you run should be determined by your environmental conditions and driving style. Most lubricant web sites, including www.mobil1.com, will have an online assistant application to help you decide if what's in the owner's manual is a little too cryptic.

[kpaske]

I checked out Mobil1's site and it says that we can use 5w-30, standard, extended performance, or truck & suv for their "ultimate" level of performance. I used to use only Amsoil 2000 Series 0w-30 and was extremely happy with it, but I've since switched to Mobil1 (which costs me about half what I was paying for Amsoil) and I haven't noticed any degradation. I've used both standard and truck & suv formulas.