benji666broz

i have a 2013 eco 3:55 grs and i pulled my 18ft v nose motocross trailer to a race last weekend to a race with 2 bikes gear gas you no the normal stuff to race, and i got 8 to 9 mpg, no wind ocasional hills, but nothing big, set cruse at 65 also at 75 no matter what i did it sat at 8 to 9 mpg. im also running a sct programmer with 91 oct. i was getting 8 to 9 with and without the programmer. WHAT AM I DOING WRONG!! the truck only has 4200 on it. it towed awesome , tranny didnt jump around at all. any help would be greatly appreciated.

smokeywren

3.15 gears in my 4x2, TT grosses about 4,800. On a trip to Austin through the Hill Country on Highway 71 last week, with cruise control locked on 65 MPH, I averaged 7.3 MPG (per the trip computer). Coming home on the same road but kicked up to 70 MPH, I averaged about 8.3. Regular gas. We'll be making the same trip next week, and this time I'll use premium gas to see if that makes a difference.

Last summer we make a 4,200 mile trip from west Texas to Knoxville TN, Detriot MI, northwest to Sleeping Bear Dunes National Lakeshore MI, then home. Cruised at 62 MPH the entire trip, and averaged about 9.5 MPG. So those hills in the Hill country suck the gas.

ecobeest

Yup.

My 4X 2012 Eco (Max Tow + HD payload, 3.73) when hauling my 7K TT will get right around 9MPG. Sometimes a bit lower, sometimes a bit higher. That's running 100% stock, no tuner, OEM wheels and regular fuel.

Drive by RPM, keep it in the sweet spot to try and tease as much mileage as you can out of it.

Like Smokeywren mentioned (especially after feedback from another thread) I will throw premium at it to gauge any improvments.

These Ecoboost make great mileage as a daily driver, but hauling they are thirsty.

For reference my 2008 5.4L XLT got right around 10MPG (hand calculated) when hauling.

KRIEGHOFF

I think anyone pulling a trailer has the same problem.

I pull an enclosed trailer that is 7 X 14. I use it to haul my 2010 Polaris Ranger that I use to shoot sporting clays.

The trailer loaded going down the road weighs 4700#.

I just went to a shoot in South Carolina. Round trip was 1600 miles and 162 gallons of gallons of gas.

That comes out to 9.8 MPG and that is the best I can get out of it.


The truck runs great and pulls the trailer like it isn't there.

It will pass everything on the road but a gas station.

EcoboostKev

Your mpg do seem low for that size trailer??? I average 9.9-10.6mpg with the cruise set between 60-65mph depending on the hills. My trailer is 33' and 7500lbs.. What does your truck average when not towing??

KRIEGHOFF

My truck has 6000 miles on it and only 800 miles without the trailer.

Madorski

That's part of the "problem". I'm going to keep screaming about the "long break in" of the EB's from the top of the hills.

At 9mpg you're about right. What's your weight and the frontal area on the trailer?

My Eco gets about 8.7 loaded, and 17 loaded. My 5.0 is about 9.5 loaded, and 16 empty.

93Cobra#2771

iTrader: (2)

When towing, it's all about the right foot. And the frontal area of your trailer. My travel trailer is 11' tall and 8' wide.

I have gotten a best of 12.1mpg (just the other day, 150 mile round trip into the smoky mountains of East Tennessee) and a worst of 9.4 on the same trip with a 20mph headwind.

I've made a 900 mile round trip to myrtle beach and back, and I averaged 11.1 mpg round trip. And my route includes going through Asheville, and the nice 6% grade on black mountain too.

How, you ask?

I run between 55-60 mph. I time hills and redlights and coast as much as possible.

By the way, guys, unless you have converted your trailer tires to LT tires, your tires are rated at 65mph MAX.

Pretty much any gas engine will get 8-12 mpg pulling a trailer with much height to it. Weight isn't as big a factor as frontal area. Don't get me wrong, weight makes a difference, but at higher speeds frontal area rules.

brulaz

I rarely go over 100 km/h (~62mph), haul 4000# TT with another 1000# in/on the truck and get greater than 13 mpg when towing. That's a long term average; any one trip can be all over the map depending head or tail winds.

But like Cobra says, over the long term, it's all about the right foot. My 4x2 and 17" Michelin LTX MS/2 tires help a bit too.

EDIT: and I'm running regular. Apparently you can do better with ethanol-free premium.

bcangelo

Towing my 1900lb boat running 70 I get 11-12 and I have 30k on the truck, the mpg does not get better.