Forum Discussion
232 Replies
- thomasmnileExplorerA question for anyone that may know the answer. Are these 6 & 8 speed trannies used in light duty truck the "variable" variety likr what is increasingly being used in cars? If so, anyone hazard a guess how they will hold up under towing conditions in the long run?
- hone_eagleExplorer;)
- gmcsmokeExplorerthat guy doesn't post here anymore so it's not the big deal it used to be.
- hone_eagleExplorerAnybody notice the high pressure pump?
look familiar ? - Perrysburg_DodgExplorer
hone eagle wrote:
Fiat takes over
No longer a joint venture
nice picture of the engine in this link
Funny I said that a couple weeks back and was told I was full of it. Cat got out of the bag before they officially announced it.
Don - sky_freeExplorer
BillyW wrote:
sky_free wrote:
It will be interesting to see the towing MPG results. We are averaging 27.5 in mixed driving with our Touareg 3.0 diesel, but only 14.5 towing our 4,500 lb trailer. If the Ram is averaging 24 in mixed driving, I'm thinking 13-14 towing. I hope I'm wrong because the market has been waiting for a truck with a smaller diesel for a long time, but the economics seem to favor daily driving rather than towing given the price difference.
I don't see any problem with 12 - 13 towing mpg, and don't expect to see anything on the market exceed those numbers anytime soon. Your experience is probably about as good as it gets. I tow a similar trailer to yours at about 8 mpg right now. 14 is at the high end of my mixed driving (not towing). I would be all over a pickup with those reported numbers.
My point is that I see people reporting 12-13 towing larger trailers than mine with the more capable HD trucks with larger diesel engines. Since this is a forum for towing, I just don't see the point of this truck for towing vs the HD's. As a daily driver it looks good, but the new Silverados with 5.3 gas can tow way more and I've seen reports of 12-14 mpg towing. If the Ram could get 16-18 towing it would makes sense. - hone_eagleExplorer
1oldtruck wrote:
Does anyone know what engine RPM the 420 lb ft is made at? I'm sure it will be way less than the 3,500 PM my truck turns pulling a hill.
HP/Torque @RPM - hone_eagleExplorer
- BrassicaExplorer III
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. - 1oldtruckExplorerDoes anyone know what engine RPM the 420 lb ft is made at? I'm sure it will be way less than the 3,500 PM my truck turns pulling a hill.
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