First drive Ram 1500 diesel
1500 Ram diesel Nice review ,I think they like it and clears up some points on why Ram did not use the 5.0 Cummins
Forum Discussion
srt20 wrote:Brassica wrote:
Common wisdom is that diesels are best for their high torque. This Ram would have 420 lb.ft per US-News. I foresee just buzzing my way up a mountain pass, even at altitudes in Colorado. Are the diesels exceptional for fuel economy when towing, also? The smaller displacement surely makes sense for fuel economy.
An engine that sucks in a lot of air to serve all those cylinders is going to naturally consume more fuel just to hit a proper lean/rich ratio. A truck could get smaller displacement with Ford Ecoboost or Chevrolet V6 with "active fuel management", too.
You cannot hurt a Diesel engine running it lean.
My car is detuned to be "less lean" because that would mean more nitrogen oxides in the exhaust that cause more smog. Then again, it has a total fuel shutoff when coasting at above 1500 rpm as a fuel saving measure. So, bang bang, it goes from slightly rich to nothing in an instant. Fun with thermodynamics and stochiometric ratios. Thanks for the information.
