MPG Expectations/Confusion

[AlariWild]

I just got a ROO23IKSS and I am seeing this when towing...

2006 F150 4door 5.4l V8 @ 63mph and 1800 rpm in Overdrive gets about 9mpg in Florida.

Coming from Ak to FL pulling with my 2013 Expedition in Tow/Haul I got about 8mpg. I later found out that my hitch was totally not setup right and the dealer never emptied the 36 gallons of fresh water. So I need to try again with the expedition.

What blows my mind though is a friend just got a Primetime Avenger 26BH TT that weighs close to my Roo. He pulls with a 2016 V6 Dodge 4 Door 4x2 truck and gets 14 to 15 mpg.

Can that be chalked up to a new vehicle vs an old one?

[elundquist]

Maybe but you might try locking out overdrive on the F150 to see if that helps.




Erik Lundquist
iPhone 6S using Tapatalk

[Mr Havercamp]

Originally Posted by AlariWild

What blows my mind though is a friend just got a Primetime Avenger 26BH TT that weighs close to my Roo. He pulls with a 2016 V6 Dodge 4 Door 4x2 truck and gets 14 to 15 mpg.

I think your friend has a load of BS unless his Dodge has the 3.0 eco diesel. In that case its like comparing an apple to...... my sister in law. He is not getting mileage anywhere close to that towing with the 3.6.

The 9 mpg with a V8 in an F 150 sounds about right to me no matter if its in Florida or not. Even on the level your still pulling that wall through the air.

[bikendan]

Originally Posted by Mr Havercamp

I think your friend has a load of BS unless his Dodge has the 3.0 eco diesel. In that case its like comparing an apple to...... my sister in law. He is not getting mileage anywhere close to that towing with the 3.6.

x2! Your friend is full of it, unless as was said, he has the diesel.

[schrederman]

I get 12.5 to 14 mpg towing at 60 - 65 mph. I do have a diesel and get 21 not towing. Diesels just tow better. They're made for it. Areas where my F-150 would downshift to 3rd and run 4400 rpm towing up a hill barely phase the diesel. It growls a little louder, but never down shifts. I'm with the others that say your bud is pulling your leg.

[jeff64]

Had an '07 F150 SC 4 x 4 with a cap on the bed 5.4l towing a Jay Flight 24 RKS. Your 9 mpg is about all it will do. I get about 8 mpg on the Jimmy with a 6.0 gasser

[MtnGuy]

Originally Posted by AlariWild

I just got a ROO23IKSS and I am seeing this when towing...

2006 F150 4door 5.4l V8 @ 63mph and 1800 rpm in Overdrive gets about 9mpg in Florida.

I later found out that my hitch was totally not setup right and the dealer never emptied the 36 gallons of fresh water.

I too have a 2006 F150 5.4L, but a Super Cab. Final drive ratio is 3.73. The Roo listed is about 800 lbs. heavier than my trailer (Surveyor 283), but about 4' shorter. Comparably, then should tow similarly. I used to typically get 10.5 mpg or better while traveling on fairly level ground.

The water in the tank should not be a biggie, unless you are doing a lot of stop and go traffic, or hills. It might make a slight difference in tire friction against the road.

On level ground, I like to pull in OD, as the fuel mileage is better than locking out of OD. I usually do not use cruise control. The problem is, we don't have level ground in this part of Virginia. I like traveling in the Tidewater area because of the increased fuel mileage.

Several factors can contribute to my fuel mileage. The wind is a biggie. I went across the Chesapeake Bay Bridge Tunnel 1 time with a headwind, and my truck would not stay in overdrive......and that is about as flat as flat can be. I have a low profile trailer, with a fairly steep front end rake that I contribute to decent fuel mileage.

Tires: I switched my OEM tires out last year for a size bigger and a bit more aggressive tread, and I don't get the mileage that I used to. I am usually still over 10 mpg in the rolling hills around here, but not as good as it was before the tire change.

Final Drive ratio. Not sure what you have, but 3.73s seem to work good for me. A higher ratio (3.55 or 3.23) might not allow the engine to rev into the "sweet spot". Usually lower revs mean better fuel mileage, but the engine may be working harder.

[AlariWild]

Thanks for the replies everyone. I guess it is what it is then and I won't be getting much better.

BTW...my friends Dodge is gas not diesel. We will be convoying to a campground for Thanksgiving. I'll see then if he needs to fuel up as often as I have to.

[Mr Havercamp]

Originally Posted by AlariWild

BTW...my friends Dodge is gas not diesel. We will be convoying to a campground for Thanksgiving. I'll see then if he needs to fuel up as often as I have to.

It sure sounds to me like he was plenty fueled up when he told you he was getting 15mpg towing the Prime Time. We just don't know what he was fueled up on.

[B and B]

Originally Posted by Mr Havercamp

I think your friend has a load of BS unless his Dodge has the 3.0 eco diesel. In that case its like comparing an apple to...... my sister in law. He is not getting mileage anywhere close to that towing with the 3.6.

The 9 mpg with a V8 in an F 150 sounds about right to me no matter if its in Florida or not. Even on the level your still pulling that wall through the air.

I concur, pulling 32 ft of TT behind my F 150 with 5.4 that was about normal.

Now pulling a much heavier fifth wheel with Powerstroke Diesel into the wind last Sunday i got 11 mpg and with no head wind same highway and route i get 14 mpg.

[phillyg]

I got 8-10 with an 04 F150, 3.73, pulling an 8,400lb. FW on the flats so you're about right, but not your friend.

[Keisling]

What speed was you friend going when he logged that mileage? It might be believable if he was going 40MPH or less.

[dcheatwood]

Too many factors here for me to say for sure. But I don't think the weight of water in the fresh tank will make much difference. Different engines in your two trucks, head wind verses tail wind, towing speed of each driver, how was the mpgs measured? Etc. 9 doesn't sound unrealistic but I'm not too familiar with your TV. Good luck and enjoy.

[elind]

I just made a 2,100 mile trip to Arizona pulling a 6X10 cargo trailer maxed out at least 4,000#on a single axle. All that I got was 12.5 mpg with a GMC DuraMax. When I pull my Wildcat 5er with 12,000# loaded I get 10-12 mpg. It shows the flat barn door pulling through the wind holds it back vs the round shape front cap. I did drive it 5-8 mph faster with some winds.