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Fuels & Lubricants Discussion all about Fuels & Lubricants. synthetic oil, conventional oil, brands, change intervals, diesel grades, gelling and such debated items like that. Non TDI related postings will be moved or removed. This forum is NOT for the discussion of biodiesel and other alternative fuels.

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Old December 5th, 2014, 07:08   #16
Veteran Member
Join Date: Jun 2004
Location: Tullahoma, TN
Fuel Economy: 51/45/41

In my 2004 Jetta TDI I used only 505.01 oils until 80,000 miles. Then I switched to Mobil 1 TDT and Rotella T6 until 100,000 miles. I had Terry Dyson do an oil analysis and he said everything looked very good except for a slight increase in blow by soot from the piston rings. Then I used only Shell Rotella T6 until 150,000 miles and I had Terry do another oil analysis. He again said that everything looked very good except again a slight increase in blow by from the piston rings. Absolutely no engine metal wear, etc...
2004 Jetta TDI PD White 5 spd; PhatBox; Diesel Power Digi PD Tuning Box & TPC - both set to low.
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Old December 5th, 2014, 09:12   #17
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Join Date: May 2009
Location: New Jersey
TDI(s): '15 Golf

No problems here, I've been running T6 in my PD since 120k
'15 Golf S TDI - 63k, DSG
'12 JSW TDI - 99k, 6MT Buyback complete!
'06 Jetta TDI - 144k, DSG, Package 2, Malone Stage 1, RCD510 Retrofit
'06 Jetta TDI - 215k, DSG
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Old April 17th, 2015, 16:01   #18
Join Date: Oct 2002
Location: Plantersville, Tx

I have used Rotella T6 for 130K miles in my 2003 Jetta TDI and car still runs perfectly with no engine issues ever. Had intake cleaned at 80,000 along with timing belt change.
and a glow plug problem once and thats it for the drive train in 13 years of ownership
We won't talk about other issues.
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Old April 17th, 2015, 20:39   #19
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Join Date: Mar 2008
Location: Canada
TDI(s): Golf

420,000km on T-6 changing out every 20,000km. Just had valve cover off doing a timing belt. Cam and lifters all like new. Checked turbo and it's still nice and tight.
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Old April 26th, 2015, 16:29   #20
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Join Date: Sep 2005
Location: Ontario, Canada

I ran T6 for several years/200k km on my BRM. It's a very good oil. I eventually had cam wear however I think this is inevitable regardless of the oil you use. I now use Liqui-Moly High Tech with a couple oz of ZDDPlus and 10k km intervals with Frank's cam and modded bearings but honestly, I think the T6 is nearly as good.
2006 Jetta TDI - Malone Tuning stage 4, G60/VR6, Vogtland 55mm/Koni Sports, Darkside GTB1749V, EGR delete, Frank's BRM cam, etc.
Several other IDI's and TDI's

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Old April 29th, 2015, 00:11   #21
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Ive used it in all of my motorcycles...my alh...and now my dpf deleted jsw. I love it. I just jumped on the Mobil delvac deal, however. Excited to give that a try.
2003 Jetta TDI Wagon - sold
2010 JSW - Malone Stage 2, DPF, EGR, ASV deletes. Nicktane. 2microntech. Etc. - sold
2005 TDI Wagon, Malone 1.5, 2010 Touareg V6 TDI
Hex-Can USB owner
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Old April 29th, 2015, 13:58   #22
Join Date: Apr 2015
Location: san jose

i am doing my first oild change and using t6.

20 bucks at walmart

mine came with 2 quarts of castrol 5 30 syntec or whatever they call it. so that will be the extra amount i need.
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Old April 29th, 2015, 14:00   #23
Join Date: Apr 2015
Location: san jose

my 2005 has 201 k miles.

so it has all the paperwork and it shows syntthetic oild changes. but other than the dealer the previousl owner took it to one shop and i can assume they used castrol 5 30 its whole life.

well i keep reading about it and all signs show that t6 is better and its sure a lot cheaper. my choices are the same as yours using t6 and mobil tdt and this is supposedly better for cheaper.
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Old March 13th, 2018, 11:55   #24
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Join Date: Jul 2011
Location: Riverside CA
Fuel Economy: 32 city avg 44 hwy avg.....

Here is where I think people go wrong. I am sure the lubrication of the t6 is adequate. but the tdi turbo is desinged to leak slightly into the exhaust as part of the turbo lube. I think the t6 doesnt burn as clean as the Penotsin, motul or Total german oils. So you may find your egr passages plugging up faster. I have 220k miles on my pumpe duce and no egr issues. Also for warranty it is not specified.
Owned and restored countless vw products or 35 years of vw pain. But you cant beat the diesel mileage.
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Old March 13th, 2018, 16:48   #25
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Join Date: Jun 2005
Location: S. Central Pa USA
Fuel Economy: 03' Jetta 67.1 best 51 avg. 99.5 Golf 46 Avg.

Originally Posted by bobs jetta View Post
Anybody use rotella t6 5w-40 on a 06 jetta tdi pd. I am a newbie with a new to me 06 jetta tdi. 174k,5sp..i found out old owners shop was putting a 5W-30 synthetic. I changed oil with the rotella,figuring it was right weight and full syn and torbo diesel rated. Plus its very avl... I also put in powerservice white bottle in fuel for anti gel.car runs fantastic,getting me 48 mpg untill last weeks deep freeze,now i got 37mpg. No engine noise just a rattle at idle that goes away when i depress clutch. Starting right up at 8f was lowest so far. It didnt like that it started right up but clanked and clicked for a moment.. Thank you for any ideas.
It's been the only oil my 03' Jetta has ever used. Now has 230k miles
A gun is like a parachute, if you need one and don't have one, you'll probably never need one again
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Old March 13th, 2018, 16:56   #26
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Join Date: Nov 2014
Location: maine

Great oil. Honestly, pretty much any 5w-40 will work just swell.
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