4seasons
ArboristSite Guru
From your name I assume you have some experience with what I consider the best light truck engine ever mass produced, the 12v 5.9 Cummins. Because the Cummins was a medium duty truck engine that they turned down to fit the light truck application. Ford had to turn up the light duty PunyJoke to complete and it has taken them years to get it to have anywhere near the reliability of the Cummins.sorry, @Blue Oaks sure wasn't trying to knock you, 25 years is true as far as the 7.3 but the turbo goes back way further than that, probably 40's but not sure, the variable geometry **** is maybe ten years old and still really dont work right. My opinion sometimes ole reliable is better than new untested, dont get me wrong though, I experiment and push things, im into tractor pulling so you know push to the breaking point and back off one blond hair, but too much fancy stuff sometimes is more trouble than good just to knock off a little NOx or particulate emmision
My diesel knowledge comes from the other end of the spectrum with Detroit 60 (great on fuel, horrible on oil) and Cat C-12, C-13, C-15 both pre Acert and post. The old single turbo C-15 had way more usable power than the EPA changes on the Acert, thus putting the new engine in more of a strain causing more fuel use and worse emissions than the old version. Personally I would choose the old Detroit 60 12.7 and get 7.5 mpg over the more powerful C-15 getting 5.5 mpg and buy oil every 1000-3000k.
I find that the same time is true with all the new EPA changes. It is never reliable, doesn't do much for the environment, and always hurts the consumer.