Quote:
Originally Posted by Shaneajanderson
That's a big four banger. Not sure why that would get such bad fuel economy, though admittedly I know little about diesel engines.
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A lot of it may have to do with the 2.8 gets a 6 speed and the 3.0 gets a 10 speed. I also suppose more smaller cylinders may be more efficient at complete diesel burn than fewer larger cylinders even though you have 2 extra sets of rings and a few more bearings. I know emissions was why Dodge went from making the 440 big block V8 and made a 500 ci V10 instead. They just couldn't get a clean burn on the big holes. Then again that was 20 years ago and everyone is coming out with big gas motors again so it think with modern direct injection and variable cam timing just about anything is possible.