Originally Posted by nailem
Skytop, I'm not sure if you have driven any modern diesel trucks? I have a 05' duramax and it is anything but slow. A quick look found 2012 duramax 0-60 was 7.2 and the 6.0 was 7.7. I'm sure the numbers are similar for rams. Pluses a diesel will respond tremendously to a programmer where they are a joke for gas motors. Search YouTube for Cummings vs Corvette or mustang videos and see who wins.
My smack gets 16mpg mixed driving and 15mpg towing a 6000lb boat at 75mph. I expect this truck to get 25-26 towing my boat.
My last diesel was a 2008 F350 dually. Is that new enough for you? It is 7000# of diesel which returned its best mpg on highway driving of 16-17 mpg. Additionally, if you reread my post, you will notice that what I said was the result of my first diesel in 1982 which resulted in the need for copious amounts of patience while driving.
As for chipping, there are always those who think there is a free lunch. Pistons are made of heat sensitive AL alloy that does not stand up well to extreme high temperatures (combustion zones) which chips rely on for their claimed power advantage. No thank you.
My post was concerning some diesels that are indeed sluggish to drive. The newest full size diesels are putting out prodigious amounts of previously unthinkable power. But remember that diesels by design, work best as constant RPM engines.
With the impending release of the '14 RAM VM diesel that has tested at 0-60 in almost 10 seconds, the statement I made about diesels 30 years ago still rings true today.