Diesel vs gas......................
OK folks, there have been a few to many diesel vs gas threads that have shall we say gone to "Hell and a hand basket"! So if all of you would put in you BEST, no flaming reasons for going gas vs diese...
Forum Discussion
transamz9 wrote:Hannibal wrote:transamz9 wrote:
Who's saying it will hurt them? There is just no need in it now days. They make so much power down low there is very few times they have to be run in the higher RPM range.
There is if you need the additional horsepower (rear wheel torque) to get the job done in the time you desire to do it (miles per hour).
The job gets done at 2000 RPM or lower and on occasion short burst of 2500. I've never "had to" go over 2500 rpm to hold a respectable speed and I tow over my listed GCVWR and well beyond the GCVWR of a comparable hp gas truck.
Like I've said before, 2000 rpm is going to be half the wear of 4000 rpm. If you say that today's engines have 0 wear at 4000 rpm then I am getting negative wear at 2000 rpm.
Take a gas truck with 325 hp and hook a high profile 18,000# load to it and take it up and down the road for 100,000 miles holding the posted speed 95% of the time and tell me how she's doin' after the 100,000 miles. Then try it with 25,000#.
I know that most RVers don't pull that kind of weight but this thread is gas verses diesel, right?
Since the little Cummins makes peak torque at 1600rpm, why do you gear it to run 2000rpm and 2500rpm on the grades? Why not gear it to run 1600rpm no matter the load?
Where did I say 4000rpm produces zero wear? Quote please.
Sure! We'll pull a grade at 2000rpm. Then let's do it again at 5k rpm and see which engine survives. :B
