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

Hannibal wrote:

transamz9 wrote:

Hannibal wrote:

transamz9 wrote:

Hannibal wrote:
Funny how the diesel only crowd thinks 3k rpm isn't high rpm. It's a blur. Because a gas engine runs about 30% higher rpm doesn't make the diesel's rpm low. Compared to a 19,000 rpm Formula One race car engine, 5k rpm is nothing. The gas and diesel engines in our pickup trucks aren't that far apart.

I'm not a diesel only guy. I don't mind having a gas grocery get'er.

All of my toy cars have been gas.

My new Ram ('13) has never seen over 2500 RPMs towing my rig. That's half the RPM of your 5000 RPM runs. To me, that's half the wear.
While the gas motor is running 3000+ just to hold speed towing heavy mine is sitting at 15-1600. Again, half the wear.

My truck's engine has never seen 5k rpm. Someone else keeps asserting that number. My lowly 5.4L runs 1900rpm on the flats, 2700rpm on interstate rolling hills or against any head wind and 4200rpm on the uphills. My Cummins engines saw 2600rpm (12v) and 2900rpm (24v) any time they needed it. My '98 12v 5spd/4.10 ran 2500 rpm in 5th gear 70mph towing or not all day long. Never hurt a thing. Just the same, there's far more to engine wear than rpm. Lower rpm loads the bottom end of the engine more. Higher rpm takes some of the load off using gear reduction to do the work. But perception seems to rule around here.:B

Show me one of these for a high revving gas motor........
Cummins High Mileage Club

The 5.4 is a tough motor but it will not compete with a diesel. I have a buddy with a F250 with the 5.4 and the last I talked to him it was at the 500,000 mark but all it does is haul groceries and small tag-a-long trailers.

I've seen car size diesels with 250-350k that were losing compression and running a little weak. I'm not 100% convinced of the million mile club. Just the same, I don't believe rpm has anything to do with it. It's about how the engine was built for it's intended purpose. Your turbo spins 100~k rpm and should last the life of the engine.
Gas or diesel, I get the itch for a new truck at around 125k miles or four years anyhow.

That 500,000 mile 5.4 I referred to earlier. A set of heads around every 100,000 mile mark. Two plastic intakes. Three transmissions. Some might say that the motor is strong to last through all that and then you have people like me that think that a higher revving engine is harder on things , especially the transmission with all the extra shifting.

I have an '01 service truck with the 5.4 that weighs around 10,000# by itself and I do not allow it to tow any trailers anymore because of having to put transmissions in it. It has 4.10 gears and it will not hold OD on the interstate with nothing hooked to it. It has 150,000 miles on it.

The real point I'm trying to make is that people are comparing a gas motor to a diesel motor so they are trying to put them in the same class. So take a 3500 (DWR) with a gas and one with a diesel and load it to it's max and run them until they blow. See which one is still going. My money is on the diesel. I'm not saying that a diesel is for everyone but just the same a gas is not either. It's all in what you want. If you use a truck to go to the grocery or the occasional Lowes trip then a gas engine is just fine. If you are going to use a truck to it's max then diesel all the way.

If I go and look at a used gas truck and it has a goose neck ball in the bed I will move on to the next truck. If it's a diesel truck with a ball in the bed I will think nothing of it.

I agree that these new generation diesels are making it a little harder to constitute having a diesel but in the long run, if you are going to keep it and use it then yes in the long run a diesel is better IMO. FYI, I still love my 05 diesel way better than my 13 diesel.;)