Originally Posted by champ198
Not all ULSD fuel is equal. I can fill up at the Horizon gas station and my truck seems to run fine and not be loud. I fill up at Mapco and I've got chatter. I use the Motorcraft Cetane boost to help keep the dumbed down diesel from making my engine loud.
I wonder if the stations that say they are ULSD are not, or if so how long did they mix the ULSD with reg. diesel fuel until it can be 100 % ULSD? I believe that this is the cause of my DPF's early giving up on me at 73,000 miles.Since I have had my truck since March 07 when ULSD was just getting around to stations at all. I am sure that I have gotten some "mixed" fuel at some point early in the life of the truck. Just wondering if any knows if this may be true, just a thought. But with the KEM I can run off road fuel if I wanted too -- its sooooo nice not to have to pick and choose what stations I have to stop at.