How many miles on your DPF

[Dieselnut59]

Not really related, but do the TDI Volkswagens use a DPF? My mother has a 2010 TDI Jetta and the exhaust pipe is just as clean as factory, with about 10,000 miles on it. It is as clean running of a car as the Cummins with the DPF. You cannot even smell the exhaust if you stick your nose up to the pipe with the car running. I looked under the car and only saw one catalyst device, not the three that the Cummins has.

 

[BIGDADI]

I changed the engine oil today and noticed my DPF was missing. I swear it was there the last time I changed oil. I do know I get around 16-17 MPG without it.



Actually, I bought the rig used and was told up front that it had been removed. I'm seriously thinking about having it put back on, but am torn between the fairly good mileage and/or breaking the law. I just don't know how much mileage I will lose if I have it replaced. Any ideas?

 

[HBarlow]

It has been reported that the DPF is pretty expensive to buy and if you are able to run without it without check engine lights your ecm software program may have been reprogrammed by an aftermarket device so it may not work even if you reinstall one.

 

[MEmmerson]

I have 203000 km (126000 mi) no problems so fare.

 

[RVTRKN]

Not really related, but do the TDI Volkswagens use a DPF? My mother has a 2010 TDI Jetta and the exhaust pipe is just as clean as factory, with about 10,000 miles on it. It is as clean running of a car as the Cummins with the DPF. You cannot even smell the exhaust if you stick your nose up to the pipe with the car running. I looked under the car and only saw one catalyst device, not the three that the Cummins has.

All Diesels after 07 have the DPF. (on edit, in US market)

 

[Dieselnut59]

All Diesels after 07 have the DPF. (on edit, in US market)

Wow! And that little sucker gets 40+ MPG from a 2 liter engine and auto trans! Now WHY can't we have this same little engine in a mini truck in USA?

 

[RVTRKN]

Wow! And that little sucker gets 40+ MPG from a 2 liter engine and auto trans! Now WHY can't we have this same little engine in a mini truck in USA?

They used to have one, I was going to purchase one, but it was discontinued before I had a chance. Though I don't know what MPG they got in 1980.

 

[DThweatt]

50k on mine and so good so far... however. Mike Mullenax is a mechanic from Texas who posts on here quite a bit. Some time back he did a really good informative post on the DPF filter and regeneration... . and he stated that if your exhaust pipe is black then the filter is cracked. Mine has been black since day one. Kinda worried about that now. I will have to look up that post thread and recheck it all but the truck has been into several dealers to be checked for related exhaust DPF issues... and no mechanic has ever said anything. Talked to one dealer mechanic and he said that all diesel exhaust pipes are black no matter what. I think Mike is right but what is one to do if they refuse to honor the warranty?

If the inside pipe is black then your dpf is cracked and letting soot enter the tail pipe.



my 08 ford had this issue at 25k miles (job 1 tk) it took 3 trips to the dealer (which was 150 miles rt for me) before they fixed it. When I was getting serviced a duplicate truck pulled in with 70k on it and the tailpipe was clean. It took me showing the service MGR before they would fix it.



after, the truck tailpipe stayed clean up to 51k when I had enough and bought my 2010 dodge (since they finely came out with a true CC)



my 2010 dodge with 13k miles on it (10k miles towing) still has a clean tail pipe.

 

[LDigman]

Has anybody gutted one of these? I was wondering the work involved since it
would leave a "stock look" (all that's required on a Texas State inspection) and
I wouldn't have to buy any exhaust (Well, maybe a muffler) I could afford the Smarty then... .

 

[Dieselnut59]

I have a gutless kitty on my Liberty but it is not a DPF. A piece of electrical conduit and a hammer makes a beautiful tool for the job!

 

[JCJohnson]

Had a roommate in college that had a VW truck back around 84-85. Not uncommon to get 50 mpg or better. I do remember he had a reserve tank as part of a tool box. He could drive from Ames, IA to San Diego, CA on one tank/tool box fill. It was not a turbo and very slow but got phenomenal milage.

 

[EB]

Has anybody gutted one of these? I was wondering the work involved since it
would leave a "stock look" (all that's required on a Texas State inspection) and
I wouldn't have to buy any exhaust (Well, maybe a muffler) I could afford the Smarty then... .

Yep, and you won't do it with a piece of electrical conduit, that stuff in there is hard. Really don't think you could ever get it all out. Just knock a hole through the middle to let the exhaust through, (that will take several hours with a heavy bar.

 

[CLovelady]

129000 miles, "07" totally stock. No problems so far!

 

[SRay]

My friend's 2009 has almost 300,000 kms (187,000 miles) with original DPF. All highway driving everyday with up to 45,000lbs gross weight.

 

[TFoote]

Ive got 218000 and no problems, but all my miles are highway at 75+. Largest trailer is 12500 and largeast load in bed 3400.

 

[KLauber]

Mine fell off at 92K. Amazing the difference it made in the engine oil! I can do extended oil change intervals now. Before it was 5K tops before the oil needed changing.

 

[Eddy]

73,000 miles on mine. No problems so far (mixed city/highway/occasional towing 12k fifth wheel). Tailpipe does have a light coating of soot, but it takes a while to show up after cleaning. I was told that a slight amount of soot in the pipe was normal but according to what others are stating on this thread it should be clean indefinitely. It seems to me that the DPF has to be 100% efficient to let absolutely no soot through. Is that so?

I'm wondering: would a small crack in the DPF media actually be beneficial because some of the soot is not being trapped by the DPF, so it should take longer to fill up? I'll leave it up to the experts to answer this one...

Oh, the truck is a 2007. 5, totally stock/QC/4WD,G56

 

[BruteForce]

Mine was good until around 21k miles, then it fell off, got hollowed out and got reinstalled. 44k miles and everything is flawless!

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[bigsilver67]

how does it work to hollow out the dpf? will performance/mpg improve or stay the same? and does it throw codes?

 

[CBlack]

What's a DPF?