4x4ord wrote:
It makes total sense that the EGTs are going to be higher doing the same work at lower rpm.... so what? Are you saying the EGTs are too hot? What kind of fuel economy are you getting in 5th vs 6th? Maybe this is a result of after market tuning?
I like to keep EGT's as cool as I can because it keeps the rest of the engine temps cool as well. In 5th, they are in the 800-900F range and in sixth they are in the 1,000-1,100F range for most of my drive. Not too hot, but the cooler the better for the longevity of parts. Other temps that are lower are trans temps since it is not shifting between 5th and 6th under load.
My fuel economy is roughly .5-1 mpg on average. Not much, but considering it also allows me to run at cooler EGT's and lower trans temps, it is a win win. This is after tuning. However, my brothers 2014 Ram was stock until recently and he recorded the same as me.
I have provided more than my fair share of data to back up what I am saying. And I am talking about actual data from manufacturers, not data from one trip going off of my truck computer. All have backed up what I am saying that A)my truck is more efficient in 5th between 60-70mph pulling my RV than 6th and B) the automatic transmissions in these truck is not smart enough to put you in the right gear in all conditions hence the reason why the truck makes offer a gear select option.
You, on the other hand, have fought me in this and other threads without providing much data to back up what your are saying while asking me for more even though you refuse to believe the data I am providing because it does not back up your beliefs. At this point I would have to say put up or shut up. Provide some actual data like BSFC maps, thermal efficiency numbers at different rpms, and so on or you really don't have a leg to stand on in this debate.
