Just did a 900 mile Travel Trailer pull down to Gulf Shore State Park.
Our truck did an Awesome job and had no issues!


I was disappointed in the mileage of 8.5-9 mpg though. Expected 11 mpg. Truck gets around 16 mpg unloaded here in town.


Camper is estimated at about 9500lb loaded and 35ft long total. A lot of rolling hills basically the whole ride there and back. So that effected economy I am sure.


Truck has 217,000 mi and is bone stock. I will post pic of how I had WD hitch setup below. I may need to adjust that as well. First pull with my Equalizer.


Can you share your MPG's with similar loads me please.

 

 

That's about what I get, drive 65 or less and it comes up to 10-11.

 

That's what I got until intake/exhaust/WW2/60hp tow tune towing 31' TT loaded about the same. I got 11.5 the last several trips to FL from Carrollton. I have since traded it for a CCLB 4X4 with manual trans and get a little better still. Maybe 12.5 if I really try. Like Jmatthews said, Keep it under 65 and you will see an increase. I drove from our driveway, towing the camper, to Bryn Mawr campground in Saint Augustine on one tank(38 gal) of fuel. 450 miles. It was a gamble because the fuel light was on the last 15 miles.

 

Driving 65 with our fiver, I get 10.5 to 11, although on the very very flat such as in Florida, we might get a bit more. Usually, once rolling, wind resistance counts more than weight.

Your truck looks to be squatting in the rear, but everything else looks good. Suggest you tilt the ball mount down so when you pull the bars up they raise the rear end more. You are shooting for the same measurement at the front fenders or slightly less than you had before you hitched.

Steve

 

I get similar mpg's that the others have posted pulling our 32' 5th wheel with the mods posted on our 2WD F-250. In my experience I got 1-2 mpg's better pulling a 32' 5th wheel vs pulling a similar size travel trailer. The wind resistance seemed to be tougher with the TT. On flat terrain, no wind and keeping it under 2K rpm's I can get 11-13 if all the conditions are in my favor. Throw a good crosswind in there and I will burn 2x the amount of fuel. Wind plus hills, easily 10 or less mpg's for me.

Towing mpg's with my 4x4 Excursion is definitely much lower than with our 2WD F -250.

But just to make sure I would check your EBP sensor & tube since this is a common cause of low mpg's. On a cold engine with key on engine off the EBP sensor, MAP sensor & Baro sensor should all be within .2 psi of each other. If not the EBP sensor and/or tube could be clogged.

 

Sounds about right - If you can keep it in the sweet spot 65-68 & keep rpms under 2K. Might try some diesel kleen or another additive, helps a little - Seems like I get 9.5-11 depending on head or tailwinds. Not so much the weight you pull with these trucks but the fact that your pulling a wall down the highway. Sure u know but make sure tire pressure on the truck & tt are where they should be.

 

Great Guys thanks for the input. I feel that my truck performed fantastic on the longest pull to date.

Tires where up to psi. Definetely want to adjust the hitch truck sag.
Will see if I can figure out how to look at my Scanguage II for EBP.

 

Look to see if it shows exhaust back pressure (EBP), manifold air pressure (MAP), and barometric pressure (Baro).

On a cold engine that sat overnight, With the key on, engine off, they should be within .2 or so psi of each other.

Let me know if you need any help.

 

Found Baro and EBP. No map that i can find. About to add those I found.

 

EBP was 14.1 and Baro read 0.0 but xquage says in inches of mercury

 

in 99.5+ models the Baro Sensor is located in the PCM.

The elevation at Ringgold Georgia (according to the location on your posts) is 700 feet. The current pressure online for Ringgold is 29.84 inches of mercury or 14.65 psi.

So, if your EBP sensor is reading correct - your Baro sensor reading should be 28.7 inches of mercury.

I wouldn't be concerned about the PCM, if you had a problem with it you would surely know. It is more likely a communication error or something with the scan gauge. I am not familiar with the type of gauge/scanner you are using.

What type of gauge is it?

If you are still getting 16 mpg around town I would not be too concerned about the EBP sensor right now, you are within .5 psi of the current pressure on the weather channel.

 

When my Exhaust Back Pressure sensor (16.49 in the pic) was reading 2.5 psi off of the Baro & MAP sensors (14.0 in the pic) my mileage tanked to about 10 mph around town.



after replacing the sensor & cleaning the tube all went back to normal.

 

Ok Rich I found the Map and EBP. They are .9 off from eachother. Dont think my Scangauge 2 by linear logic will read Baro.
Thankyou

 

Cool, we can get the Baro reading off any weather Internet site for now. What were the MAP & EBP readings?