You seem to have already made up your mind Tylus. The GM 6.2 is better than the Ford 6.2, but neither will give you the fuel economy the EcoBoost will. It's a pretty consistent theme, those with 3.31s routinely post outstanding fuel economy numbers while those of us with 3.73s routinely post mid-teens on the highway.

To be brutally honest, if buying a Yukon prevents you from coming on FTE complaining about paint and fuel economy issues you should do that. Life's too short to drive something you don't like.

 

With 4800 miles on the clock, my '13 Eco SCrew is averaging 19MPG for a mixed driving total.

I have gotten 22 on a 400 mile trip that was mostly 55MPH. I live in rolling hills so there is on and off the gas a lot. Do notice a 2MPG drop if it's 70-75 in Interstate or 4 lane. Mostly rural driving with 4 different day long trips into a city driving situation. Even in town I'm getting 15-17 depending on stop lights and traffic.

Very happy so far with the mileage of the Eco, still much better than my 12MPG V10 I traded off!

SPark

 

I'm planning to put on 1300 km's of highway driving this weekend. I will monitor and post back.

 

Look forward to seeing wha' ye get, seventy. Just please put it USA miles per gallon for us southerners.

 

I'm taking my truck on a trip from SE Virginia to mid coast Maine in June. To date the furthest that I've gone is 250 miles each way so the 867 mile trip each way should tell a pretty good story.

I will be sure to report on my trip. Where I grew up in Maine, it's quite hilly but not mountainous and the MPG's suffer immensely no matter what you're driving. It'll be interesting to see how she does in that environment for a few days.

 

It's funny you mention about Shell 93 octane getting better mpg on your truck over regular grade, as I use the same brand of fuel and have noticed the mpg difference as well.

 

maybe you guys could try a bottle of Outlaw on fill ups ....I`m kidding ....I don't even know if they still make the stuff

 

Just got home from my weekend travels. for you American friends, I'll put the US figures in brackets behind the metric. Keep in mind, this was 90% highway driving, with no trailer, and just luggage/golf bags for two. Route was as shown in this link: http://goo.gl/maps/lKDvW
Elevations from 2600 feet to 5300 feet. I have the 3.31 axle and Ecoboost engine.

I traveled 1362 km (846 miles) in 15h 53 min, so that's an average speed of 86 km/h (53.4 MPH). I'm kicking myself, but I lost the receipts, so I have to go by the lie-o-meter.
I started out with some city driving for the first day, I was getting readings of 16 L/100km (14.7MPG). By the third day, it was down to 12L/100km (19.6 MPG) , and it stayed there.

For reference, I had pretty good records on my 2005 with the 5.4 engine, and in mixed city/highway driving it got about 24L/100km (9.8 MPG). I never did such a long trip without a load, so it's not a direct comparison.

I'm pretty pleased, especially considering that with the big fuel tank, I'll have a range of over 1000km's on the highway. That's excellent.

I plan to do some towing later in the summer, so I can post up after that.

 

Considering the elevations, that's incredible for any engine.

 

This was pretty much a best case scenario, even though we did see some high elevations (that would be kicking horse pass if you are interested), it is mostly gentle grades.

 

Great news, finally had my truck back long enough to do a recent 50/50 city highway economy experiment-- so I can say consistently (with 3.73) I can go 150 miles to 1/4 tank (36 gallon) my best is 164 miles to 9.3 gallons including remote starts. I guess we can add that to the log.

 

been awhile since I posted on this thread (laziness)....last 1,005 miles 17.9 average mpg, mostly commuting to work and back with a few shorter trips here and there

 

First trip of summer..

Denver, CO to Durango, CO.. 325 miles or so.. mostly 55-70 mpg, cross wind or head wind most of the way, two big mountain passes, two construction stops idling for 10-15 minutes each.

Computer says 21.9 mpg.. gas guage not quite to half a tank.. not bad..

 

2013 FX4 5.0 3.55 gears and only 15K miles on it with a fresh oil change. Drove about 2 hours at 7000 ft elevation with the truck empty showing 20.3 mpg. Added an empty U-Haul car hauler trailer and drove 1500 miles to NY with an overall average of 15.7 mpg. Loaded a 1967 F100 onto that trailer and drove back. First half of the return trip showed 14.3 mpg, but the land starts to rise up once you get to Iowa and after that it averaged 12.3 mpg.Did all that milage in 3 1/2 days, sleeping in the back and driving driving driving...felt like I was part of the seat by the time I got home.The truck I hauled with and the truck I brought back: 1967 F100 Ranger Camper Special 460/C6, p/s and p/b

 

turbo dog I had a 1970 ranger F250 camper special and it was a great truck. it didn't look near as nice as yours but it was a truck! and I always knew what my MPG was going to be 8.5 empty, loaded, pulling, going up hill, coasting down hill, with a tail wind or a head wind it was always 8.5