The fact that you DON'T know about how the fuel is injected straight into the cat is telling. The amsoil issue was exactly as stated. The oil did not perform well. It obviously didn't work in his truck. The 9th injector is actually slang term. But if you think that fuel isn't injected directly into the cat, then I can't help you. Now, do you want to tell me again that a truck that has never run on DEF, runs on DEF???? Hint,,,,,it's not a 2007.5
Well I stand corrected. It is a 2007.5. It HAD the DPF that had the 9th injector. My apologies. He had it removed. In my haste, I correlated DPF with DEF. My bad.
But the Amsoil still sucks.
Clyde
