So I've seen several towing threads and everybody's opinion, two cents, whatever. I've been on youtube to get more input, and so I thought I'd add mine to help add to the mix or to whatever, but here goes.
2013 Ram 1500 Express 5.7 Hemi Quad Cab 3.92 axle with HD engine and tranny cooler.
2013 Keystone Cougar 28RBS. Dry weight is 6,300 lbs 32 feet
I've recorded a not so high quality of the dash board going up the Conejo grade on the southbond 101 Freeway in Ventura County California. This is a 2 mile 7% grade from about 200 feet above sea level to approximately 900 feet above seal level.
Tow/haul engaged 89 octane gas from Unocal 76.
Me, wife and two kids under 8 plus say about 100 pounds in the bed and the trailer probably weighed in at close to 7,000 lbs.
At cruise on flat land I can tow at 60 MPH at about 1,800 - 1,900 RPM. Up this grade you will see the MPH drop, but when the RPM kicks up to 3,500 it accelerated up to about 55 MPH at which time I let off to just maintain 55 MPH.
Gauges at Start
Gauges at Top
Overall I was very impressed. Very pleased with the way the truck pulled up the grade and I felt very comfortable that I was not pushing the truck. I felt like I had a lot of gas pedal and power left. You can hear the engine but IMO its the exhaust note more than anything else.
Based on these results I feel confident tacking larger mountains (Grapevine) etc. I will probably take it slower though as those are larger and longer hills.
Also, it puts that stupid video on youtube from Chatanooga Ford or where to dust.
Based on my towing experience with a heavier trailer these tards must have picked up the Ram that was not geared for towing and/or were flat out lying. Just not possible!!!! I can reach 70 with my trailer easily without flooring but not so if you believe these guys.