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Yes and yes. Where would we be without the micro chip? Fuel injection saved our butts.
While fuel mileage went down at first, and has improved greatly in 5 years, if we compared to an open engine we are still down 2-5 mpg, maybe more without any inhibitions.
I think back to when Detroit Diesel first came out with the series 60 four stroke diesel engine in the late '80s, they had electronic engine controls, all drive by wire with only an electric connection between the accelerator pedal and the engine. This was a radical change in the amount of smoke coming from the diesel engine. I personally thought that diesel engines responded to computers very well!!! And that was also the beginning of when a person could just sit and drive because the computer would watch the engine parameters a lot closer than any human possibly could, so that meant we could now start getting more HP from smaller engines without fear of having a melt down. Now back on subject, I personally think that the DPF systems are like most things, still in the development and growing stage and they will continue to improve fuel economy as time progresses, unless some genius comes along and provides a more economical and viable method of doing the same thing with a lot less complication, and then we get to go through the development stage with that!!! As the old saying goes...necessity is the mother of invention. I think that still holds true
I kind of disagree.. meaning I am not saying a DPF , DEF ,etc and CAT systems on cars haven't helped , but with way more cars on the road I think those #,s would be hard to show.. here is why I think the cars and diesel trucks are cleaner from those 1975 KW and Pete built trucks , etc oh don't for get the old Mercedes diesel cars wow those would smoke.. its not the DEF and DPF those are way new to show #,s its fuel injections and computer controlled fuel systems that meter the fuel...
IMHO to boil it down, the diesel is now going thru the same learning curve that the gassers did in the mid 70's and 80's. They will get better as we improve the technology. And I do agree that it's not a cheap learning curve but what's your health worth?
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