What kind of mileage is everyone getting. On the highway I'm getting 15L/100 km. Anytime im in town my
Fuel economy is cut in half. 27L/100km. does that sound right? Would a bad cam phaser be a cause of this

 

I normally see combined about 12 l/100 km during summer per lie-o-meter, sometimes better. Now that winter is here 14-15 is the norm. Been this way since new. I'd say you are as expected.

 

I can get as low as 12 L / 100 km highway driving with a light foot, generally around town I am getting between 14 - 16 L/100km. If you are seeing 27 then I would say that something is wrong???

 

Where do you live?
Winter gas?
Long idle times to thaw ice off windshield?
Stop and go city driving in cold slippery conditions?
I've added air to tires 3x in past 2 months since cold weather started, each time they are down 2-3lbs. In past 2 months our temps have gone from 10*c to minus 5-8*c so tires need frequent attention.

So many variables, hard to narrow it down to one single thing at this time of year if you live in cold climate.

 

I get around 16 mpg on my commute to work 35 miles one way, hoping on getting a new truck not sure what motor. I hear the 5.0 get better then the Eco

 

Oh geez, sorry, I didn't see the 27 in the OP's post.. I don't even see 27 towing 6000 lbs.

 

Ok good to know that 27/100km is unheard of. I know it's accurate because I reset it when I took a trip down south an I hit as low as 14L/100km. As soon as I got back to town it's been. Gas guzzler. The cam phaser has been bad since I bought it and the dealerhip has to see it to fix it, could this be the problem. It's been warm out so it has almost no idle time.
Here's a vid of when the knocking happens. I think it's a phaser

The truck is still under warranty. What should I expect from the dealership about this fuel mileage problem?

4496EB21-78A0-4A2C-8291-074E5B8E359B-662-00000126ABA2E2EE.mp4

http://i303.photobucket.com/albums/n...26ABA2E2EE.mp4

 

yes, 27 is horrible.

I have a 20 minute city commute everyday and get 17L/100k. Even my wife who drives like the gas pedal is an on/off switch rarely gets it up over 19L/100k. Long highway trips I can get it down to 12.

 

My leveled '10 and oversized 295/70/18 tires gets the standard 17 or 18 L/100km. I run a tuner with custom tunes, but the minimal fuel savings that I may be able to stake claim to are blown out the door by my heavy foot, and desire to beat everyone else off the light.

Before anyone argues, the tire sizes have been recalibrate to be true to actual highway speed. In theory, my lie-o-meter should be deadly accurate. If I can run 17 with heavy mud tires, on the same engine, same year.......... you got troubles. How does your exhaust smell?

 

I live in bc Canada and te temps have been warm for this time of year

Dave m; my exhaist smells normal, nothing out of the ordinary, I thought it was maybe my driving habits and heavy foot. I reset the gauge and took it slow for a few days and that did not Lower the numbers

 

I had to go online http://www.aqua-calc.com/convert/fue...-100-kilometer to find a conversion chart, but over 42K miles, my truck "averaged" 15.2 L/100km. My normal driving is about 70% rural/suburban, 10% stop-and-go, and maybe 20% highway which, depending on the time of day can be stop-and-go as well. On my last highway trip, it averaged only slightly better.

 

6inch lift and 35 inch NITTOs, 12.5 MPG! , but Priuses and Smartcars fear me.

 

The pic of your truck reminds me of the Calgary Flames Mascot "Harvey The Hound" See if you can spot the similarity.





If only Harvey had a little orange on his ears............... or you blacked out the reflectors on that blacked out truck.

 

Here's a UPDATE!

Since going into the dealers twice for this issue and bad knocking cam phasers they said they cannot duplicate the knocking sound and therefore they can't fix it. They said to bring it by when it starts happening. Saturday while at Walmart it started knocking badly so raced across town to the dealers, only to wait for 45 mins By the time try looked at it it stopped. So **** them

Today I brought it too another ford dealer in town and explained. I showed them the video of the knocking and no questions asked they booked me in to get the phasers replaced. Try disent even have to look at te truck
They said the bad mileage is caused by the phasers and it causes the engine to run rich, in some cases the fuel can be seen leaking out of the exhaust. Hope this helps anyone in the future with the same problem

 

WTF is a cam phaser anyway? Anyone got a picture of one, and where it is located on our 5.4's?

I've heard several complaints about these things, and by the sounds of it, it almost seems like a part that is destined to fail. Therefore, once our trucks are out of warranty, what is involved in changing them? Are they covered under the power train warranty, or just the original bumper to bumper? How many are there? How much $ are they? And is it a DIY job, or something that needs to be scanned and software updates done by a dealer scan tool?