I have read just about everywhere that many people are adding 2 stroke TCW3 to their diesel. So i decided to try it in my 2006 Dodge Cummins at a mixture of 1 oz per gallon which seems to be the going mix rate. After adding it i could tell that the engine was quieter and was very happy. After running it through 2 tank fulls one day after a drive i got home, put it in park and it was bucking like it was running off 3 cylinders. Really ruff idle. I have not used it sense. Truck still does not seem to idle as smooth as it used to. Do not know if it has anything to do with the 2 stroke but am just wondering if anyone else has had any problem with running 2 stroke in their diesel?