Anyone ever hear of a turbo getting ("coked up" dealer term)? I lost a lot of power and massive drop in MPG while towing to Co. Took truck 2012 3500 drw dodge to dealer and they had it for 3 days. ...
In my area fleets are gong CNG or lpg. Garbage has been that way for a long time. Busses also. At Frito Lay I installed a deluge sprinkler system for their LPG filling station in the 80's.
I don't know if there is a connection but the CNG/LPG Garbage and Busses are much quieter than before.
I am seeing electric Fed EX and some of the others. Seems they are trying out those and CNG and LPG.