2021 Ram 3500 H.O.

4x4ord wrote:


It could be that Cummins sells lots of engines but I know that in days past (prior to emissions) the Cat was considered a far more reliable engine than the Cummins and in more recent years the Detroit is considered much more reliable than the Cummins. The 6.7 seems to be a good engine but I'm not aware of anything special about it.

Shiner I'm not suggesting there is not more to it than size of cooling system components but when the engine that is proving to be more efficient (ie the Ike run demonstrated that the Ford used less fuel to climb the hill than the Ram) also has a greater capacity for cooling you've got to recognize there is a good chance that the Ford can sustain significantly more power than the Ram can on a hot day.

Again, look at the details and stop making assumptions. The reason why Cat was more reliable was because unlike Cummins who didn't want to design an engine twice, they only designed (or basically retrofitted) their engine to just meet the 2007 emissions and would have a to redesign the engine even further in 2010. This was going to cost a lot of money so they decided to exit the market and focus on equipment which had lower emissions standards and they made more money on.

Detroit did something similar and also used carbon credits earned from other areas in Daimler Group to keep their old design for a few more years.

Cummins on the other hand, since it does not have a parent company to give them carbon credits and only make engines so they can't just up and leave the market for another industry, made the decision to meet 2010 emissions in 2007 so they only had to design the engine once. As with any new technology, this had a lot of growing pains until it can be perfected. Detroit finally ran out of credits meaning they would have to finally redesign their engine which had a lot of growing pains as well. All while Cummins already came out of these growing pains and started to make their units with more power and reliability.

In regards to seeming more reliable, and actually being more reliable. That again is an opinion unless you actually have the repair/downtime data. I can't even make a statement saying that Cummins is more reliable than others because I don't have all of the data. If you do then please share because I would love to look at it. I am just kidding, I know you don't and are just saying so for biased reason and want to put in a passive aggressive dig on Cummins.

And again, you are making an assumption based on cooling capacities without knowing the cooling requirements of each engine which will not be the same. Why do you keep posting this passive aggressive BS in a thread about a Cummins engine? You already stated that you would never buy one and think they are not a good engine so why continue to dog on other people's engine choices? What is your agenda here?