I started using lucas a couple of months ago to make up for the low sulfur fuel. But i'v had problems with this for some time [junk on egr] about a year. Had my truck back to ford with 2000 miles on it. It was pushing water/anti. 23000 miles later they put new heads on it,but a week before it went in it started losing power,poping,black smoke ect... now I know its the egr. Ford tryed to tell me it was making to much boost and blowing off the excess.So I finally went to ford friday to take a tec for a ride and thats when he told me its the egr. Got on here and found the solution, unplug the egr! who would a thunk it
Maybe i'll try something other than lucas. It can't be helping any.