I've ran the first of the 400 h.p. electronic E-7's and they were a damn good reliable motor. But then I got a brand new 2000 CH, 460 E-7 70" midrise. Pulled walking floor chip trailers grossing over 140,000 pounds. It came home on a tow truck usually twice a week. Cooked 2 air compressors right off the bat because of the casting sand problem plugging that little cooling line for the compressor. Then it had electronic faults constantly that they never ever could fix. It would have no power, then the next hill it would pull like a train, then go dead again, etc. Then it would shutoff and restart going down the highway. Then it dropped a valve. Then the cam, then injectors, etc. The truck itself was very good though, but it was the reason I switched brands in 2005. I was afraid of E-7 Assets. But I guess I know why now, now that you-know-who explained Volvo was at fault back then too.