Ford 6.4 diesel

[aczlan]

What is the "dpf"?

Diesel Particulate Filter

Aaron Z

 

[JESSE1]

I have an '08 F-450 with the 6.4. Unbelievable power, smooth and quiet. Fuel mileage is not great with the 4.30 axle ratio but the rest of the truck makes up for it.

 

[thompsjk]

I have a 08 6.4 SRW F350 4X4 with the DPF removed. I run a Spartan tuner with the 210 hp program all of the time and average 18 MPG. I have had no problems and love it. But I only have 33,000 miles on it. You can put the DPF back in and reload the stock program in about 30 mins. if you need warenty work dune. I put 160,000 miles on my 03 6.0 with out any issues.

 

[Lt CHEG]

I test drove a 2010 F250 Crew Cab XLT 4x4, short box with the 6.4 liter diesel last week. It was a GREAT engine. Plenty of power, pretty quiet, especially while in motion and really good acceleration. The problem as I see it though was the fuel economy. I averaged about 13.4 mpg according to the computer in a 30 mile or so mix of city and non interstate highway driving. At that level of fuel consumption, I could not justify the purchase of a new truck with the 6.4 liter diesel. I'm a little disappointed with the fuel consumption of my current truck and would consider a diesel as long as it offered the same or better fuel economy empty and noticeably better economy with a load. The 6.4 as I tested it doesn't seem to be able to provide that, so I will look into the new 6.7 and the new duramax as both of them are said to offer large improvements in fuel economy. I've heard people getting better economy with removal of the dpf as well as with the use of programmers, but even the 18mpg that thompsjk doesn't seem to be as good as current cummins and duramax owners are getting, or even what 6.0 power stroke users are getting. Not to mention that I've heard dealers are finding ways to find out if the programming has ever been changed and are using that as a ground to deny warranty claims. I pay a lot of money for a new truck so that I can have a warranty and would not do something that would risk that warranty coverage. I know for me, at this time I will be looking at something other than the 6.4 power stroke if I choose to upgrade my truck.

 

[Dargo]

I don't know if it's because I'm almost always hauling or towing, but for the last 13 or 14 years of driving diesel pickups I've never seen anywhere close to what a lot of people report. With my '96 Dodge I averaged about 11 and I average about the same with my '06 PSD. My trucks are 4X4 with dual rear wheels, but I've heard some say that they get over 20 mpg with similar setups. Being that I am friends with at least 4 or 5 guys who own GM diesels who get about the same mpg I do, I really have to question some of these wild claims. One of my employees bought a SRW F350 with a 6.4 PSD that is bone stock and he's never seen above 9.5 mpg in almost 2 years of ownership. I'm not sure a crew cab DRW 4X4 F350 with a 6.4 would get over 13 mpg in mixed driving if it was being hauled on a trailer. LOL He says that the dealers he's taken it to and other owners report the same. The absolute best MPG I ever got was one tank in my '96 Dodge when I ran nearly 400 miles with cruise set at 55 mph with no load or no trailer. I got 14. something that tank. Me thinks there is a lot of hot air floating about when it comes to the fuel economy of diesel pickups.

 

[JESSE1]

I can reset my trip computer and the mileage will eventually drop down to 11.8, that's not towing a trailer. If I keep my speed down to around 60 mph I can get about 12. During the winter my mileage dropped to about 11 and now it's back up to nearly 12.

 

[XterraJohn]

I don't know if it's because I'm almost always hauling or towing, but for the last 13 or 14 years of driving diesel pickups I've never seen anywhere close to what a lot of people report. With my '96 Dodge I averaged about 11 and I average about the same with my '06 PSD. My trucks are 4X4 with dual rear wheels, but I've heard some say that they get over 20 mpg with similar setups. Being that I am friends with at least 4 or 5 guys who own GM diesels who get about the same mpg I do, I really have to question some of these wild claims. One of my employees bought a SRW F350 with a 6.4 PSD that is bone stock and he's never seen above 9.5 mpg in almost 2 years of ownership. I'm not sure a crew cab DRW 4X4 F350 with a 6.4 would get over 13 mpg in mixed driving if it was being hauled on a trailer. LOL He says that the dealers he's taken it to and other owners report the same. The absolute best MPG I ever got was one tank in my '96 Dodge when I ran nearly 400 miles with cruise set at 55 mph with no load or no trailer. I got 14. something that tank. Me thinks there is a lot of hot air floating about when it comes to the fuel economy of diesel pickups.

A friend's dad showed me the trip computer in his truck showing an average MPG north of 20. As I recall, it's an '04 Duramax, and he claimed that that mileage was just from him driving back and forth to work.

 

[crashz]

My father has an 04 Dodge diesel. I borrowed it 3 times for a week each, and have gotten right about 18-19 mpg with mostly unloaded highway use. He claims he has gotten up to 22 mpg in it, but I think he just reads the display. I checked the display off of hand calcs and it is off a little.

BTW - this truck is an auto, 4x4, SRW, Reg. Cab, with 4.10 LS.

I had a 1983 GMC 3/4 ton 4x4 with 6.2L diesel that would get 25 mpg without OD. Could barely fight its way out of a wet paper bag though...

 

[mnfarmr]

I have a 2000 7.3 that I love, when the time to update came, I was skeptical of the 6.4 based on the 6.0 problems. However I got a deal on a new 08 a year ago to good to pass up. The pick up has been fantastic, great power, and a far better ride than the 2000. Yes the mileage sucks, 13-14 mpg's, but all the brands 08+ mileage suffers with that dang DPF system. I've had zero problems with it and would recommend a 6.4 to anyone.

 

[Egon]

Me thinks there is a lot of hot air floating about when it comes to the fuel economy of diesel pickups.

Golly, just a few days ago there was a video here showing the 2011 Ford diesel get something like 41 mpg.