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#1381251 - 02/21/09 01:27 PM VW GTI 1.8T Oil
JAG Offline


Registered: 10/23/05
Posts: 4824
Loc: Fredericksburg, VA
New update on my engine/oil issues. I post in this forum because it is a Euro engine and this thread is a continuation of a previous one here: http://www.bobistheoilguy.com/forums/ubbthreads.php?ubb=showflat&Number=851595&fpart=1

I recently finished a 4800 mile run with Mobil 1 5W-40 Turbo Diesel Truck (CJ-4 version). Well, today I checked the valve cover area and PCV system, and found that the oil let me down. Varnish has again formed in these areas. I did not mean to run the oil this long but it just happened. I meant to go about 3700 miles, which with some other oils (like Amsoil ACD), no varnish formed anywhere.

So, I'm quite annoyed and not impressed with M1 5W-40 TDT CJ-4. It is pathetic that 5000 miles is too much to ask of a modern synthetic oil in a modern VW engine, driven in a normal manner. ACEA should use this engine to test long drain oils...it's an oil-killer.

Red Line 5W-30 is now in the engine. It will be interesting how good this oil does in my engine.

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#1381258 - 02/21/09 01:33 PM Re: VW GTI 1.8T Oil [Re: JAG]
jldcol Offline


Registered: 12/19/08
Posts: 710
Loc: ohio
Not a expert, but varnish does not sound that bad. It is thin and will not block oil passages much, and is well stuck so should not move around and clog things. Gooey sludge much worse.IMHO.
_________________________
Sorry if unclear, I intended to make no sense at all.

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#1381262 - 02/21/09 01:38 PM Re: VW GTI 1.8T Oil [Re: jldcol]
simple_gifts Offline


Registered: 07/26/04
Posts: 11943
Loc: Middlesex County CT
Just reread portions of the O.T. and it seems to be causing you some understandable angst.

Are you just trying different oils? If ACD is working can't you find refuge there?
_________________________
2004 Prius; 92K ML Syn 5W-30
2007 Yaris 68K 0w-40 Castrol
2006 B2300;130K;ALM


Was driving an ox cart; Now on the USS Enterprise

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#1381266 - 02/21/09 01:42 PM Re: VW GTI 1.8T Oil [Re: simple_gifts]
wavinwayne Offline


Registered: 01/06/05
Posts: 7546
Loc: North Alabama
My 1.8T has varnish, always has since I bought it at 15k miles. It now has 134k miles and still runs like a champ. I think we make too much of varnish here.
_________________________
Silence is golden, but duct tape is silver.

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#1381364 - 02/21/09 03:01 PM Re: VW GTI 1.8T Oil [Re: wavinwayne]
JAG Offline


Registered: 10/23/05
Posts: 4824
Loc: Fredericksburg, VA
simple gifts, yes I'm trying different oils for various reasons. I bought 65 qts. of M1 5W-40 on sale so that's what got me off of Amsoil ACD. Now that is not so pleasing. Sometime I may go back to using ACD.

jldcol, this varnish is film-like and also contains chunks of larger particles.

wayvinwayne, the 1.8T PCV system has some parts with very small orifices, so it does not take much to clog them. Then it doesn't work and you get all the negatives of not having crankcase ventilation. It is a terrible design. I replaced my once already at a cost of $500 for parts and labor. I won't do it again. If need be I'll run with a clogged system, but I'd attempt some kind of modification that ventilates the crankcase.

These same deposits also tend to cover the inside of the intercooler, reducing its cooling effectiveness. I've already cleaned that mess off of mine once...not pleasant.

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#1381406 - 02/21/09 03:56 PM Re: VW GTI 1.8T Oil [Re: JAG]
buster Offline


Registered: 11/16/02
Posts: 30408
Loc: NJ
I'm very surprised an oil as good as M1 TDT is not holding up well for you. Are you sure it's the oil JAG? The Redline run should be very interesting. How long until you see results for the RL?
_________________________


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#1381477 - 02/21/09 05:42 PM Re: VW GTI 1.8T Oil [Re: JAG]
bruno Offline


Registered: 10/08/07
Posts: 468
Loc: new Jersey
Why don't you stick to VW 502 approved oils ?

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#1381623 - 02/21/09 08:43 PM Re: VW GTI 1.8T Oil [Re: bruno]
JAG Offline


Registered: 10/23/05
Posts: 4824
Loc: Fredericksburg, VA
buster, all the maintenance parts on the car that could effect combustion and therefore deposits are not past their replacement date. I don't detect any coolant leak into the oil. So I am blaming the oil.

I probably won't get a good idea of how the Red Line holds up until the 2nd fill of it. This first fill is tainted by the deposits already there.

bruno, I like some VW 502 approved oils and not others. That spec puts the bar above ACEA A3/B3 but not as high as some other specs like MB 229.5. So it's ok but nothing to get excited about. My warranty expired long ago and during that I used VW 502 oils. I had deposit issues in this engine with some of those oils too.

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#1381991 - 02/22/09 10:03 AM Re: VW GTI 1.8T Oil [Re: JAG]
buster Offline


Registered: 11/16/02
Posts: 30408
Loc: NJ
It should be interesting to see if RL will further clean and remove existing deposits.
_________________________


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#1382206 - 02/22/09 01:22 PM Re: VW GTI 1.8T Oil [Re: buster]
tig1 Offline


Registered: 01/03/09
Posts: 13657
Loc: Illinois
That,s strange. I can't recall ever hearing a M1 lubed engine forming varnish like you are describing. Normally M1 keeps engines very clean. Sludge or varnish.
_________________________
2007 Ford Fusion 227,000 miles
M1 0-20 EP
2017 Ford Fusion 49K
M1 0-20 EP
10,000 mile OCIs on both engines
M1 ATF and MC LV
M1 10-30 in all OPE
MC filters


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#1383381 - 02/23/09 03:24 PM Re: VW GTI 1.8T Oil [Re: tig1]
simple_gifts Offline


Registered: 07/26/04
Posts: 11943
Loc: Middlesex County CT
 Quote:

It should be interesting to see if RL will further clean and remove existing deposits.


This seems to be a quality bestowed on RL oil by everyone except the mfg.

It took me several 6-9K runs to achieve maximum TBN retention.

This circumstance may warrant Terry's input.
_________________________
2004 Prius; 92K ML Syn 5W-30
2007 Yaris 68K 0w-40 Castrol
2006 B2300;130K;ALM


Was driving an ox cart; Now on the USS Enterprise

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#1390894 - 03/02/09 10:52 PM Re: VW GTI 1.8T Oil [Re: JAG]
Tornado Red Offline


Registered: 06/01/05
Posts: 1777
Loc: Saint Paul (ex-San Diego)
 Originally Posted By: JAG
simple gifts, yes I'm trying different oils for various reasons. I bought 65 qts. of M1 5W-40 on sale so that's what got me off of Amsoil ACD. Now that is not so pleasing. Sometime I may go back to using ACD.

I'm sure there are TDI owners in your area who will be happy to take that TDT off your hands.
_________________________
'03 Golf TDI, 704k miles: Bosio DLC764, GT1749VB, Malone Tuning, G60/VR6, Bilstein HD, Recaros, Akebonos, Brembos, Pirellis, DG Panzer, Delvac 1 ESM 5W40

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#4631062 - 01/11/18 05:55 AM Re: VW GTI 1.8T Oil [Re: JAG]
Lada Offline


Registered: 12/25/14
Posts: 2
Loc: Czech republic
Hello, what do you think about use 300V 0W40 in a VW 1.8T Stage 1 (about 155kW)? I have also a small additional oil cooler.

Now I'm using 8100 X-Lite 0W30. But X-Lite is no longer offered in my country. I want some premium oil like 300V, Millers CFS or Redline but Redline is expensive. CFS offers 0W30 (HTHS 3,11) and 5W40. 300V has lager range of weights for my engine - 5W30, 0W40 and 5W40.

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#4631067 - 01/11/18 06:10 AM Re: VW GTI 1.8T Oil [Re: Lada]
rooflessVW Offline


Registered: 12/24/11
Posts: 4030
Loc: North Carolina
Originally Posted By: Lada
Hello, what do you think about use 300V 0W40 in a VW 1.8T Stage 1 (about 155kW)? I have also a small additional oil cooler.

Now I'm using 8100 X-Lite 0W30. But X-Lite is no longer offered in my country. I want some premium oil like 300V, Millers CFS or Redline but Redline is expensive. CFS offers 0W30 (HTHS 3,11) and 5W40. 300V has lager range of weights for my engine - 5W30, 0W40 and 5W40.

You're grave digging a bit, don't you think? Stick to an oil with 502/A40/229.5/LL01 and you'll be fine. Doesn't have to be a boutique oil.
_________________________
"Zed's dead baby, Zed's dead."

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#4631106 - 01/11/18 07:11 AM Re: VW GTI 1.8T Oil [Re: JAG]
Lada Offline


Registered: 12/25/14
Posts: 2
Loc: Czech republic
I know 502 is sufficient and 300V is "too good" for 1.8T. I like X-Lite with 502 (quieter engine, more stable temperature). But X-Lite is more expensive than 300V and same as CFS, so there is almost no price difference for me.


Edited by Lada (01/11/18 07:15 AM)

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