Well, I feel like a real dummy! I realized that I had another variable in the smoother/quieter ballgame. The night before I had filled her up with Citgo diesel instead of the usual BP diesel!? Anyone got ideas on why Citgo diesel would cause my truck to run smoother/quieter than BP diesel? I surely thought that quality fuel like BP would be better that Citgo!?

I have got to work on the "sludge jar". Not working on these diesels with their VERY low vacuum at idle. I will post an update in the future when I have some success. I think a more descriptive name for this device would be Crankcase Vapor Condenser - more to the point of what it actually does.