Diesel vs gas......................

Hannibal wrote:
Diesel only gas haters think 2k-3k rpm is low rpm? Might want to think that one again. Even 2k rpm is 33 revolutions per second. Can you peddle that fast? Count that fast? A gas engine typically running 30% higher rpm than a diesel under load isn't a make or break difference in rpm. When you factor in the weight of rotating and reciprocating mass in the Cummins at 2k rpm and the Hemi at 3k rpm, wear from rpm is negligible. Chrysler tested the Hemi during R&D under full load at 5400rpm for 300 hours. At tear down, it showed normal wear, nothing broke or melted. You can figure how many miles that is depending on gear ratios, road speed and tire sizes. Then figure how often any engine is run at "full load" such as pulling grades. Cummins ran the 5.9 hundreds of hours at it's peak hp rpm full load as well. Either engine will outlast the truck it's in. I'm watching the truck start to degrade around a perfectly good strong running engine with my rig. So you get the diesel option cost back at resale minus interest you paid on it. At least in theory at the bragging post you get it back. Come trade in time, I get the cost of my engine back as well!:B

So, my 6.7 will last longer than a 5.7 gasser, pull better and get better MPGs all at 30% of the RPMs? What's your arguement again? Sounds like you are thinking with your heart and not your head.

July 3 - 15, 3,781 miles through the Ozark mountains, Arkansas, La, Tx, NM and the Jemez Mtns. On to Chama, southern Colorado through Telluride, Ouray and Grand Junction. Up over Vail pass and on to Omaha. Total fuel used; 371 gallons. Avg MPG: 10.1. At or 5 over the speed limit. No hill was too great not to pull the posted speed limit. Number of gas powered motorhomes, TT or FWs that passed me? Zero. The number of gassers I passed was too numerous to count.

11,300# on the trailer, 19,300# gross.

This is experience, not conjecture. I have backed it up with hand calculated numbers. Even though you are 1500# or more lighter than my 5er I will still and always out perform you. It is not a slam, I am glad you are happy with your truck. It will not compete with its diesel counterpart, regardless of how hard you try. (Towing, not 1/4 mile races!!)

What MPGs would your truck get towing at 75mph? I know it isn't close to 10.1! I have towed with a 5.7 hemi, so I know!

I am not a gas hater, either. Just a realist. I loved my HEMI and would buy another one in a flash!!!!