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VW Jetta TDI

3707 messages,  Last post on Nov 30, 2009 at 6:14 PM

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What is this discussion about? Volkswagen Jetta, Biodiesel, Diesel, Sedan


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#3140 of 3707
Re: new tdi [tdifun] by shrifty
Jul 07, 2009 (4:51 pm)
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Replying to: tdifun (Jul 06, 2009 8:50 am)

Not bad for a start, it will get better as you put some miles on. Last night I was driving rather spirited through the Bronx/Queens area and had about 27 MPG (including being stuck in some construction). Highway driving around 75 or so I am averaging around 42 MPG, currently a bit over 22K.
 
A question for those far more experienced with diesels than myself, I can't recall what I've read/heard about max mileage and when you can expect to see it. If I'm not mistaken, is it around 40-50K?
#3141 of 3707
Re: new tdi [shrifty] by ruking1
Jul 07, 2009 (5:24 pm)
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Replying to: shrifty (Jul 07, 2009 4:51 pm)

Correct, it is anywhere from 30,000 to 60,000 miles for full break in ( aka, app 550 psi compression, new comes in app 410- 425 psi). This in in stark contrast to gasser engines 1,000 to 4,000 miles.
#3142 of 3707
Re: Loss of Power but no MIL [bpeebles] by danstdi
Jul 08, 2009 (9:04 am)
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Replying to: bpeebles (Jul 06, 2009 5:12 pm)

Thanks for that info!
#3143 of 3707
Low Sulfur instead of Ultra 2009 TDI by 2newonesfor09
Jul 13, 2009 (3:39 pm)
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Does anyone know if there is permanent damage if you get low sulfur for fuel in the new TDI. I'm in New York, and they don't always label the pumps. (like whats 40 rating). I put a tank of LSD not ULSD. Car runs, no problem, but is there long term problems. Won't make this mistake again, found a station with proper labels, but a little more expensive.
#3144 of 3707
Re: Low Sulfur instead of Ultra 2009 TDI [2newonesfor09] by gagrice
Jul 13, 2009 (4:52 pm)
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Replying to: 2newonesfor09 (Jul 13, 2009 3:39 pm)

The 40 could be the cetane rating. I think I would add a little power service. The higher sulfur can be an issue. I doubt it will cause you any grief. LSD is supposedly 30 PPM vs 15 PPM for ULSD. When most diesel sold for years was 500 PPM or more. Look for a high cetane number. That will make a difference in the way your TDI performs.
#3145 of 3707
LSD by moparbad
Jul 13, 2009 (8:14 pm)
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LSD is still allowed to contain up to 500 ppm sulfur.
#3146 of 3707
Re: LSD [moparbad] by gagrice
Jul 14, 2009 (5:16 am)
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Replying to: moparbad (Jul 13, 2009 8:14 pm)

You are right. I was reading about BP LSD being 30 PPM and thought that was the limit. CA mandated 130 PPM diesel some years back. The biggest problem with using anything but ULSD in a new VW TDI would be the emissions system could be damaged by the sulfur.
 
When I bought my Passat TDI in 2005, I was able to find ARCO stations that only sold ULSD in CA. It ran great for the 8000 miles I kept it.
#3147 of 3707
Re: LSD [gagrice] by ruking1
Jul 14, 2009 (6:38 am)
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Replying to: gagrice (Jul 14, 2009 5:16 am)

To cut to the chase, the DPF regeneration phase should take care of the "increased soot" issue.
 
The Diesel Particulate Filter (DPF)
What is it?

 
I can not speak for the 2009, as I totally researched about (15-5 ppm) ULSD and the most likely damage would be to the (very expensive) DPF. On the road, I once put a B5 Chevron tank full, but I will stay with ULSD D2.
 
Overall, it is way too new to tell and while there have been incidences of "mis fueling" (LSD) none have had LSD steady diets. Moreover, there have been no 2009 TDI LSD damage reports.
 
Off topic, there has been RUG to PUG, D2 mixture damage reports. So... do NOT try this at home !!!
 
The 2003 TDI was designed for ULSD (15-5 ppm) but (mine) was run most of its operating life on LSD ( 130 ppm CA & 500 ppm 49 state) (till Oct 2006 to present- ULSD)
 
The EPA and CARBs even as they professed lesser emissions, controlled it to tactically FORCE.... MORE emissions.)
 
100,000 miles the TB/WP change was due so of course took the opportunity to look at and possibly CLEAN/change out the intake manifold and clean the EGR. The guru pronounced both good to go (to 200k or next 100k interval) The camshaft original tool markings was also GOOD news !!! For all intent and purposes I can tell no (SOTP) difference/s between LSD (both CA/49 state) and ULSD (15-5 ppm)
 
Diesel ON !!
#3148 of 3707
Re: LSD [ruking1] by longo2
Jul 14, 2009 (7:06 am)
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Replying to: ruking1 (Jul 14, 2009 6:38 am)

" took the opportunity to look at and possibly CLEAN/change out the intake manifold and clean the EGR. The guru pronounced both good to go (to 200k or next 100k interval) The camshaft original tool markings was also GOOD news !!! "
 
So you have been burning LSD or worse for the past 100,000 miles and your engine is still squeeky clean?
 
That seems to fly in the face of those with gunked up manifolds and frozen turbos. The common diagnosis has always been that the high sulfer fuel was the culprit.
 
What's your system for avoiding that huge problem that some diesels have?
#3149 of 3707
Re: LSD [longo2] by ruking1
Jul 14, 2009 (7:17 am)
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Replying to: longo2 (Jul 14, 2009 7:06 am)

Yes. At the time (early 2003), that was the worst fear &/or scenario.
 
The "preventative"procedure: drive the turbo diesel as designed. (aka, slightly more aggressively I can get ultra specific, if it doesn't bore anybody) The spin off:.... let the mileage fall where it may.

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