I have used this in my 6.5 GMC diesel which used / burnt a LOT of oil beforehand. It cut my consumption in half compared to DELO. DELO would start to burn at around 1000 miles of use, this started to burn at around 2000 miles. That's a BIG difference when you have a thirsty for oil kind of truck.Now I use this in my 6.0 Powerstroke and it works great too. The truck has never used oil but seems to start easier with this in it vs DELO. It is also offered in 10w-30 which is kind of hard to find so, here I am ordering more of this oil again for my 6.0. I change it at 5000 miles as everyone suggests and it's still pretty golden around then, not much black. DELO would come out completely black after 5000.
Rating:
[5 of 5 Stars!]