little long but i will offer some of my diesel knowledge....ive been around 18wheelers all my life. the epa can go ahead blow wind up my pantlegs but diesels are the best around. tractor trailers nowadays get 7.5-8.5mpg which is great working on 10! problem is it took forever to "get" the new technology thats been around for years the epa i swear is paid but the oil companies to do this the new jetta tdi runs cleaner then any gasoline powered engine out there...the simply answer to the diesels is run them on ULSD (ultra low sulfur diesel) which is becoming the standard today!....the other problem the oil companies would lose their billion dollar profits because most diesels (cars) get 45-80mpg HWY diesel is cheaper in most places! thats your answer its a damn shame because you get 500k+ out of the engine send it for a overhaul and good til at least a million miles! the technology is there the goverment is holding it up!
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