Anyone have any personal experience with Liqui Moly Diesel Particulate Filter Protector?

Lightflyer1

Top Post Dawg
Joined
Sep 13, 2005
Location
Round Rock, Texas
TDI
2015 Beetle tdi dsg
If the car is operating properly I don't see where this helps much if any. The most it can do is help it burn the soot (which the regen cycle does anyway), but the ash produced from this will still be the same as if you didn't use anything at all. When it is full of ash it needs replacing or cleaning. As long as everything is working why suffer the expense? If it isn't working you should really get it repaired and not this. The Extended Emissions Warranty should handle any emissions items like this.
 

ApriliaNut

Veteran Member
Joined
Jun 4, 2008
Location
SoCal
TDI
06 pkg 1 Jetta 191k w/Malone Stage 2
Understood and agree somewhat. After perusing some YT videos about the subject, it's for those of us who do more in town driving as opposed to long freeway jaunts. Evidently the system doesn't get up to optimal temps in town, so what this does is give it a "boost" to get to the temp quicker where the regen process starts, so the regen process will be more optimal in around town driving.

BTW you're in my old neck of the woods, as I went to UTA back in the Jim Bertelson, Steve Wooster days when the Longhorns ruled the roost in the national standings. Since I've been gone nigh on over 40 years I'd venture a guess Round Rock is now a suburb of Austin??
And boy do I miss that Texas BBQ!
 

Lightflyer1

Top Post Dawg
Joined
Sep 13, 2005
Location
Round Rock, Texas
TDI
2015 Beetle tdi dsg
It can help it burn soot but the regen will do that just fine, even in town if you let them complete as needed. In town they will happen more often due to more soot loading. If this stuff can lower the temps it burns at then maybe passive regens can happen or help. Nothing a good drive won't take care of though. I monitor mine with VAGDPF and let them complete when started.
 

ApriliaNut

Veteran Member
Joined
Jun 4, 2008
Location
SoCal
TDI
06 pkg 1 Jetta 191k w/Malone Stage 2
What is VAGDPF?
Does it tell you the percentage of capacity used in the DPF???
Can you manually do a DPF regen with it?
 

Lightflyer1

Top Post Dawg
Joined
Sep 13, 2005
Location
Round Rock, Texas
TDI
2015 Beetle tdi dsg
It is an android app that lets you monitor the dpf status. It will show used capacity and when in a regen or not. It will not allow you to do a manual regen. You can look but don't touch, so to speak.
 

Dannyboy

Veteran Member
Joined
May 25, 2013
Location
Mb
TDI
2014
I agree with Lightflyer1 , if your dpf is working correctly using this will have little to no effect. Just like all these DPF cleaner potions, they dont do anything. Ash doesn't burn regardless what you throw at it. Ash needs to be physically removed.
You'll hear the fans turn on and elevated idle and exhaust note change a bit. Dont know about passats but my jetta gets a power boost when during regeneration also.

Nice 20 minute drive at highway speeds usually does it. Or just leave it running until fans turn off once you get to your destination. Dont worry about it, it doesn't require any input from the driver.
 

Mongler98

Top Post Dawg
Joined
Mar 23, 2011
Location
Northern MD (HAGERBUSH)
TDI
98 Jetta TDI AHU 1.9L (944 TDI swap in progress)
Snake oil. Its not needed at all. A solution in search of a problem that was already solved from the factory. Save your $
 

johnsTDI

Veteran Member
Joined
May 25, 2019
Location
Canada,ont North America were Neighbours to usa
TDI
2012 Highline
I would not bother with using it. what i think can help though is running a few tanks of Shells V-Power Diesel. i have noticed from using V-power that when it regens i dont get that nasty sulphuric smell anymore from the regen is it due to using V-Power? im kinda thinking Yes bought my TDI used and the other guy im guessing ran plane jane diesel in it all the time. also seems more pepy on performance. Good stuff.
 

CleverUserName

Veteran Member
Joined
Oct 25, 2014
Location
NorCal
TDI
2014 OZ Cruze CTD & 2010 JSW 6MT
Eventually DPF will get clocked up with oil not with fuel , So I do not see any good effect of this .
That's actually a myth. In a healthy engine that doesn't have an oil consumption problem, 99%+ of the ash captured in a DPF comes from the fuel itself. Typical ULSD is 0.010% ash, so burn 1,000 Lbs of fuel will create 1 lb of ash.

Unless you have an oil burner, use whatever oil you want. I use CJ-4 10w30 in my 2.0 TDI because I know the extra ash in the oil isn't a significant factor in the DPFs lifespan. The reward is better performance and lower engine wear vs. low ash 507 oils.

 
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