I reported 11 mpg through MI, IN, IL. When we got to Missouri with all the ups and downs on I-44 our mpg dropped to 9.5. Through Oklahoma to OK City we saw 10 mpg. From Ok City west we were back to 11 mpg. All driving was with od locked out, tow/haul activated Cruise was set to 55 mp. and all mpg hand calculated. Interesting note: the computer readout on mpg is the closest to reality that I've had in several vehicles. Never reads more than 0.1 high nor more than 0.1 low. Sometimes it exactly matches the hand calculation. The above figures covered about 1100 miles. We'll see what the remaining 800 will show. Plan to calculate the entire 2000 mile trip. Don't miss the 4 Dodge/Cummins at all. The 6.7 liter 2008 that I had was definitely overkill for our two TTs and the mpg of the Chevy is only 1-2 lower than the Cummins.
2009 Chevrolet Silverado LTZ 1500 4x4 5.3L
2011 Kodiak 281RLGS travel trailer
2011 Egg Camper
2010 Chrysler Town & Country
Good Sam life members
Bob & Grace professional retirees
Sometimes I miss my '98 12v Cummins Ram and my '01.5 but I don't regret going back to gas. I too don't see the vast difference in mileage people claim here. At most 3mpg better with the Cummins. We get 8.5~mpg towing our 5th wheel 65mph with TowHaul on using cruise control. I wish I had the patience to roll along 55-60.
'10 F250 XLT CC SB 5.4L 5spdTS 3.73
ex '95 Cummins,'98 12v Cummins,'01.5 Cummins,'03 Cummins; '05 Hemi
'07 KZ Jag 28JFSS.
Hannibal, what's the weight of your 5th wheel? I didn't know the the 5.4 would do that good. I love the Super Duty trucks but figured the 5.4 would be a dog.
Not to hijack the post. I have a 5.3 in my Yukon XL. My trailer is about 1000 pounds heavier than your RRUGG and I'm getting around 8 towing at 60-65. Not bad but not great either. I try not to pay attention to the mpg. I just look at the smiles on my family's faces.
The 5.3 must have a lot more horses and torque than my old 350. My last truck was a 2000 model chevy 3/4 with 350 engine, 255 hp with 330 ft pds of torque.
It could huff and puff and pull the hills, but it loved the fuel.
I now have a 2005 dodge diesel 2x4 and man-o-man what a difference, 325hp with 610 pds of torque, this old boy can pull and still get good fuel mpg pulling a trailer the size of mine (about 6K) TT.
So far, I have been happy i traded, but who knows, time will tell.
mama also thinks the dodge is more comfortable to ride in, so that makes a difference too.
have heard good things about the power and torque of the new ford six cylinder. But, I have not forgotten my GM V6 cylinder towing experience:
all i can remember was pulling my trailer with a 93 model GMC that had a V6 engine, great truck to drive around town, but pulling that trailer, you would have thought you were tied to a stump and my eyes were glued to the heat gauge.
with the old dodge, the only question is: "just where do you want the trailer and when do you want it there".
Our 5th wheel has a 10k GVWR and an advertised 7200 dry weight so my guess is around 8500 lbs. I weighed our previous trailers but just haven't had the desire to weigh this one as it tows fine. The 5.4L is adequate for our rig around the southeast but I wouldn't want to tow over the Rockies with it. I never thought I'd see the day when people think 300+ HP isn't enough engine for a pickup truck!