DPF Removal, F350 6.4L Powerstroke

[WilliamBos]

I am not thrilled myself about the extra emissions controls on the new trucks, but the two trucks I have had post-DPF have run pretty darned well, even with the "emissions junk" on them. In addition, one of them gets better fuel mileage than any truck (gas or diesel) I have ever owned, which somewhat disputes that the DPF trucks cannot get good fuel economy. To each his own, but personally it would take a lot to get me to pull my DPF off and take the chance on failing inspection, voiding manufacturer's warranty and have it maybe not work out as I thought it might.

John M

And lets not forget about trading it in, it will be flagged, there goes the value.

 

[Baranx4]

Why? Because, since the invention of the automobile, people have been hot rodding.

Same as hot rodding a Viper, a Corvette, or a Hayabusa that already will break 195mph bone stock.

I know what you mean, the problem is that most of the people who hot rod their car or trucks are usually the ones who then are then complaining about their POS that blew a engine, tranny, or rear and the dealer won't honor their warranty and they can't afford the replacement parts and labor.
Some of the comments on each brands respective message boards are rather surprising. They wiped out their heavy duty tranny running their programmer at a level they knew would cause issues, or bend their tie rod street racing with a programmer yet expect the manufacturer to pay for repairs.
If you wanna play you gotta pay



Originally Posted by jcmseven
I am not thrilled myself about the extra emissions controls on the new trucks, but the two trucks I have had post-DPF have run pretty darned well, even with the "emissions junk" on them. In addition, one of them gets better fuel mileage than any truck (gas or diesel) I have ever owned, which somewhat disputes that the DPF trucks cannot get good fuel economy. To each his own, but personally it would take a lot to get me to pull my DPF off and take the chance on failing inspection, voiding manufacturer's warranty and have it maybe not work out as I thought it might.




Not sure if you ever watch the show top gear, on one episode where they wanted to show how driving styles have a large effect on fuel economy, they took a toyota prius and raced it around their test course. Following the prius within a length or two the whole times was a BMW M3 or M5, after so many laps they checked fuel useage and the prius averaged 17 MPG while the M3 or M5 averaged over 19 MPG. Shows how driving style can really effect MPG.

 

[kenmac]

I didn't want all the emission crap. I bought a 07 5.9 cummins that happened to come in a Dodge. It is rated at 325 HP & 625 lbs ft of torque. I don't think I'll need any more tq or hp..

DPF from what I've been reading, Will need to be cleaned by dealer or authorized shop at around 100k. They may need it b-4 100k.. Only time will tell

 

[RobertN]

Well, there is that

A couple years ago, I remember reading about Cadillac having reps and camera's around drag strips. Seems some folks would run their cars at the drag strip, then try to take it to the dealer for warranty when something broke

Kinda reminds me of a guy I used to know. Built this Jeep up for running the Rubicon. Lift kit, tires, gears, Detroit lockers ect. Didn't get more than a mile up the trail, and blew his front drive line. He was locked up too much; the u-joints popped like pop corn. Dad gummed terrible Jeep...

I know what you mean, the problem is that most of the people who hot rod their car or trucks are usually the ones who then are then complaining about their POS that blew a engine, tranny, or rear and the dealer won't honor their warranty and they can't afford the replacement parts and labor.

 

[TheRegMan]

Well I feel like a total dip#$*&. I started this thread but haven't been on to follow up. We've been on vacation and I kind of forgot about it.

I have read all the replies and appreciate each. I do feel that the DPF removal is not necessary at all for any perrformance gains. This truck performs better than any vehicle I have ever owned. I was just curious as to whether or not I could significantly bump up the milage. It's not that big a deal though. I have a 2008 F350 4 door, long bed and average about 17.5 on the highway depending on how fast I drive. We drove about 1,000 miles to St Louis last week and got 17.3 mpg. Most of that was 78 mph. These trucks are really amazing. Plenty of prque and torque even with the DPF.

I'm not unhappy with it at all and will probably never remove the DPF. A DPF delete is about $2,000. A person would have to save 3-4 miles per gallon for a lot of years to make that up. As I and many of the replies have stated, there is no need to do this for performance reasons so for you guys that refuse to get a new diesel; quit worrying about and treat yourself to a new truck. You'll be glad you did.

One of the replies stated his truck went through a regen cycle about every 300 miles. I would say that's probably about what mine is doing. The manual states it uses one liter of diesel for a regen so roughly a quart. At $2.75 per gallon, that's about $.69 cents per regen. Not so bad and certainly no reason for anyone to stay away from the new technology. Also consider the air coming out the exaust pipe is cleaner than the air going in the engine.

I gusee I asked the question to see if anyone had any had any kind of logical explanation as to why the DPF should be removed such as;"removing the DPF results in reduced back pressure on the engine which would result in significantly increased engine life." I didn't see anything like that and there is probably no validity to that train of thought but since I am not a diesel expert, I don't really know.

I do know this is the finest vehicle I have ever owned and think I'll leave it just like it is.

Thanks for all the comments,
Reg


For those

 

[WilliamBos]

Well I feel like a total dip#$*&. I started this thread but haven't been on to follow up. We've been on vacation and I kind of forgot about it.

I have read all the replies and appreciate each. I do feel that the DPF removal is not necessary at all for any perrformance gains. This truck performs better than any vehicle I have ever owned. I was just curious as to whether or not I could significantly bump up the milage. It's not that big a deal though. I have a 2008 F350 4 door, long bed and average about 17.5 on the highway depending on how fast I drive. We drove about 1,000 miles to St Louis last week and got 17.3 mpg. Most of that was 78 mph. These trucks are really amazing. Plenty of prque and torque even with the DPF.

I'm not unhappy with it at all and will probably never remove the DPF. A DPF delete is about $2,000. A person would have to save 3-4 miles per gallon for a lot of years to make that up. As I and many of the replies have stated, there is no need to do this for performance reasons so for you guys that refuse to get a new diesel; quit worrying about and treat yourself to a new truck. You'll be glad you did.

One of the replies stated his truck went through a regen cycle about every 300 miles. I would say that's probably about what mine is doing. The manual states it uses one liter of diesel for a regen so roughly a quart. At $2.75 per gallon, that's about $.69 cents per regen. Not so bad and certainly no reason for anyone to stay away from the new technology. Also consider the air coming out the exaust pipe is cleaner than the air going in the engine.

I gusee I asked the question to see if anyone had any had any kind of logical explanation as to why the DPF should be removed such as;"removing the DPF results in reduced back pressure on the engine which would result in significantly increased engine life." I didn't see anything like that and there is probably no validity to that train of thought but since I am not a diesel expert, I don't really know.

I do know this is the finest vehicle I have ever owned and think I'll leave it just like it is.

Thanks for all the comments,
Reg


For those

That is so nice to hear a positive review on the DPF.

Good luck with the truck.

 

[gilbertmsg]

To each his own, I have an 08 2500 Dodge Ram Cummins with 12,500 miles. It has been to the shop numerous time during the year I have owned it. The EGR is causing most of the problems with the newer diesels. I have had turbo cleaned and then replaced. The truck runs flawless when everthing is clean and new, but as soot builds up things begin to fail and you can acutally feel the difference in performance of the truck. I really can't afford to give up my warranty on a $40,000 truck. I will continue to have it serviced by the dealer and hopefully they will solve the EGR issues. But when the warranty is gone, so will the EGR & DPF.

Eddie

 

[Diamondpilot]

To each his own, I have an 08 2500 Dodge Ram Cummins with 12,500 miles. It has been to the shop numerous time during the year I have owned it. The EGR is causing most of the problems with the newer diesels. I have had turbo cleaned and then replaced. The truck runs flawless when everthing is clean and new, but as soot builds up things begin to fail and you can acutally feel the difference in performance of the truck. I'm really can't afford to give up my warranty on a $40,000 truck. I will continue to have it serviced by the dealer and hopefully they will solve the EGR issues. But when the warranty is gone, so will the EGR & DPF.

Eddie

Stories like this one have keep me in my 2004 F-250 4x4 and 2006 F-350 4x4. Both are diesel and run like a top. Neither have been in the shop a day for anything other than a bad dash cluster(really a bad fuel gauge but they had to change the whole thing) on the F-350. I want nothing to do with DPF.

Chris

 

[jcmseven]

We hear horror stories about those dreaded engineers, but in truth they are pretty smart. As I mentioned before, my Duramax is stout, and fast. I have had a post DPF Ford 6.4L, and it was stout, too. My friend has a post DPF Dodge, and guess what, it's stout too. In short, these trucks are great. They also get better mileage stock than people think. I would say the Ford can be tuned by the dealer to maximize its mileage and I would make absolutely sure our OP has the most updated tune to maximize this. It made a big difference in my Ford, which was originally an "early tune." Ford recognized that the new owners of these trucks were not pleased with them getting the same mileage as the V10, but costing over $7K more, so they have made several running software EM upgrades. I will tell you, though, my tire guys said, "we both bought our Chevy diesels (2006) before that emissions crap went on them--that killed the mileage and power." Interestingly, my "post-DPF" truck gets better mileage than both and is faster, even with one of them running a modest performance chip. It is clear the companies worked pretty hard to not loose too much power or economy with these changes.

John M

 

[TheRegMan]

I'd love for some of the new technology haters to drive my truck. It haS 89K on it and I would bet when they were done they would agree it out performs any pre 2008 ford diesel. My nephew has a 2002 F250 7.3 liter diesel which he loves but will readily admit, it can't touch the 2008 in performance or pulling ability.