I was going to post this in the other mileage thread but there seems to be some drama in there I did not want to get caught up in.

I calculated my mileage on the first trip the family took in the new "X". We went from Havasu to Palm Springs. We got just under 14.5mpg on the freeway (cruise set at about 70 to 80mph the whole way). The total round trip averaged just over 13.5mpg (that is with about 50-70miles of in-town driving while in Palm Springs. I was hoping for 15mpg on the highway. Oh well. Not too bad overall.

 

Just purchased my 2004 Excursion V10 2WD and drove home 250 highway miles at an average 65 MPH. Average MPG was 16.7. This was in Florida so no hills to speak of.

 

Are both you guys reporting hand calculted or console? Wopstar mentioned calculated but gt5 didn't.

Also I like to use more than a one tank wonder to figure my 'average' consumption...I've had some great and not so great one tankers...

FWIW...I have NEVER seen more than 13mpg out of my 4x4 V10 Ex...although I have never driven much unloaded highway miles either...but then again...I seem to never get what some others report towing either...maybe I don't stretch things enough? HEHE...

Joe.

 

I'm reporting hand calculated mileage. Filled the tank when leaving dealer and refill when I arrived home. When filling the tank I would allow the automatic filling of the pump on slow and then addtional fuel until second full click off, both times. I have an F250 4WD 5.4V8 and have noticed considerable better highway mileage in Florida on our annual trips back to Missouri, at least 1.5 more miles per gallon.

 

Mine was console reading that I verified by calculator. Mileage was calculated starting with a full tank and then calculating after fill-up when the trip was over. Havasu to Palm Springs has some decent grades to it so that will affect it obvioulsy.

 

IMHO - You should get a little better, but not much. I generally get 16 on the open highway, non-towing, at 60-70 mph. BUT, there are 2 additional factors to consider that cause mine to go down from one tank to the next - tire pressure & fuel blend (winter vs summer vs Ethanol blends).

Tire Pressure - if I run the posted psi on the door sticker (45 front 55 rear), I get a smoother ride, but loose MPGs. I generally run 65 psi all around and then up it to 75 for towing.

Fuel Blends - I've noticed in both my X and 01 Accord (v6) that I get 1-3 MPG less with winter gasolines and Ethanol blends. With the X it's the higher end. I try to avoid Ethanol (even E10, which studies have shown contains as much as 25% E) in the X when traveling long distances or towing. If I'm just getting a 1/4 or so, I don't worry about it so much, but if I'm filling up, I'm looking for pure gasoline. Around town, I only get 10 mpg anyhow and the Ethanol doesn't seem to change that.

Of course all of this is purely my opinion, based on my experience.

 

Mark, at what stations do you find pure gasoline?

 

just made trip form jax fl to seaford del got 20 mpg goning up ac off and running 65- 70 mph. 15 mpg around town and 18.5 mpg coming back with ac on runing 75 on I-75 went 765 miles on one tank, fill up was 41.6 gals and about six miles for home. mileage was calculated by dividing galons in to miles driven at fill up time. I just purchased this X in oct to tow my camper and haul the grand kids it works great.

Bob USNRET
o4 4x4
6.0 EB

 

For me, there is Texaco near my home and generally Shell and Exxon/Mobile do not use Ethanol - but that can change anyday. There once was a federal law in discussion to make E10 the standard, but I don't know if that ever went thru - I do know that several states mandate E10.

I avoid Murphy USA (WalMart) when filling the X - it maybe a few pennies cheaper, but it doesn't go as far on it. Back before the price skyrocketed, you get E10 for about $0.10 cheaper than gas... not the case anymore.

I noticed about a month ago, not sure how long it has been this way, but BP stations in our area are now selling E10.

Usually, there will be a sign on the pump that says "May contain up to 10% Ethanol".

Soon there will be no choice... we'll just have to live with it.

 

I have a lot of uphill downhill sections so that can hurt my mileage numbers a little. I was also running about 45 to 50 pounds so I could save some on that side of things as well.

 

I do mostly city, with some highway, and get ~15mpg, if you remove the idling from the picture. This is hand and console, they line up pretty well. I run 44gal diesel with 16oz power service in the silver bottle from Sunoco only, and only 3 days after fill to allow sediment to settle. Might be a good idea to get the station refueling schedule, generally any clerk knows.

I'm also generally easy on the throttle, but occasionally hammer the hell out of it. Sometimes those pesky 4bangers will come up before a lane end at a red light and try to cut you off just to get in front. I haven't been beaten yet, but I haven't had any real competition, or people willing to hang post 60mph.

Also I run steady 70psi in the tires unless I'm given a reason otherwise. We've had no weather to speak of, so I haven't bothered adjusting. Ride was a little rough at first but you get used to it.

 

I have a 2005 Eddie Bauer with the 6.0 PSD and 80k miles. Over the holidays, we drove from Western Washington to Western Montana and back (about 1,300 miles round trip). There were 5 of us, with all of our clothes and ski gear. I have Yakima bars on top, and had a Rocket Box and a PackaSport on top with 7 sets of skis, a snow board, all of the boots and poles and a few suitcases (probably way too much to put on top - even on top of the X). The space behind the third row seat was full too. We were pretty heavily loaded. I could feel the load, and noticed more body roll than usual (due to being both heavily loaded and too much load up high).

The roads going over were pretty much wet, except over Lookout Pass at the MT state line. I drove 65 to 70 MPH, and got 15.8 MPG (calculated). Indicated was 16.1.

On the way home, there was a lot of snow in MT and ID, then the roads were mostly compact snow and ice until Snoqualmie Pass in Western WA, where they got more wet. I did the whole drive home in 4WD and again got about 15.6 MPG (15.8 indicated).

On other unloaded drives, I have seen as high as 18 MPG when I keep the speed below about 68 MPH, and if I go over that it drops to about 16.8 - 17.

I felt that with the heavy load and the increased wind drag from the boxes, nearly 16 MPG was pretty good.

I use Ford's cetane boost every time I fill up.

I have had this rig since late September and just had to have the turbo rebuilt and the lift pump replaced (all under warranty) in December. It is a fantastic piece of machinery!

 

Joe, you and me both. I could possibly get about 13.5 downhill but I usually get about 12 on the highway and 10.5 in the city. Towing I get about 8 n the highway and 6 the city. That is with a 33' 10,000 lbs trailer though. I guess the 295/75/16 tires don't help much.

Bryan

 

While i know its not very accurate. the idiot meter shows 20.5 hiway and 14.7 city. thats with very cold temps single digit temps.

 

you know, everyone talks about mileage and speed, but rpm's are the key to mileage, I believe. I have a 2wdv10 and the further under 2000 rpm I get the better the mileage, get above 2200 and forget it. that means at 58 to 62 mph I can get 16 to 17 on hwy go to 70 to 80 and it drops to 14 fast. around town it dont matter, if it did I would sell it.