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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 August 26th, 2006, 22:11   #196
ymz
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Fuel Economy: 5.3 l/100 km (at 115 km/h)
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Quote:
Originally Posted by AndyH
Hi Yuri,

Yes - the original G50 is G005000. It's a synthetic 75W-90 GL-4 at about 15.6 cSt. The G052726A2 is the 'latest and greatest' synthetic 'mystery' lube weighing in at 6.3 CSt.

Andy
Thanks... now... do I want the G005000 or the G052726A2 ????? (the latter's cheaper than the former, as you know...)

Yuri. (Still confused... but that's not unusual...)
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Old August 27th, 2006, 05:21   #197
dieseldorf
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Yuri, the G50 is no longer the default fluid. Here's the P/N, I think you've got it correct:



I was told by a vw tech that the new stuff, @ 1/2 the price, is non-syn but offers nearly identical shift characteristics compared to the orginal G50 product used for so many years. He felt is would be fine for those who don't experience winter.

Did you see SUNRG's long thread on gear lubes? They gathered quite a bit of info.

You might wish to consider the AMSOIL GL4 fluid if you have access to that.
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Old August 27th, 2006, 09:11   #198
ymz
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Quote:
Originally Posted by dieseldorf
... He felt is would be fine for those who don't experience winter...
Thanks... since I don't forsee changing this stuff too often and since it can get mighty cold up here in the great Frozen North, I think I'll stick with the G50 if my supplier's able to get it when my shipment is put together...

All the best,

Yuri.

2003 TDI Jetta Wagon 195200 miles
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Old August 27th, 2006, 09:18   #199
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Quote:
Originally Posted by ymz
Thanks... now... do I want the G005000 or the G052726A2 ????? (the latter's cheaper than the former, as you know...)

Yuri. (Still confused... but that's not unusual...)
Here's the latest from post 173 with the VW fluids in green:

(Manual Tranny Fluids) (Sorted by viscosity at 100C)

VI Vis@40C Vis@100C
128 159.0 18.3 = AMSOIL CTL SAE 50 Powershift GL-1
..............16.7 = Motul MOTYLGEAR 75-90 GL-4/-5
..............15.6 = VW G005000/G005100
GL-4
185 90.0 15.6 = Redline MT-90 75-90 GL-4
..............15.2 = Mobil 1 Synthetic 75W-90
GL-5
..............15.2 = Motul Gear 300 75-90
GL-4/-5
..............15.0 = Elf Tranself Synthese FE 75-90
GL-4/-5
132 116.0 14.9 = AMSOIL AGL 80W-90
GL-5
177 84.5 14.7 = AMSOIL MTG 75-90
GL-4
133 76.2 11.0 = AMSOIL CTJ SAE 30 Powershift GL-1

183 56.2 10.6 = Redline MTL 70-80 GL-4
194 47.1 9.6 = AMSOIL MTF Synchromesh Trans fluid (GM/Chrysler)
None
208 41.6 9.08 = Penzoil Synchromesh trans fluid None
198 34.0 7.5 = Redline D4 ATF Dexron III / Mercon / API GL-4
138 40.5 7.1 = AMSOIL CTG SAE 10W Powershift GL-1
..... 31.2 6.5 = VW G-052-171-A2 None
..... 35.1 6.38 = VW G-055-726-A2 None
..............6.3 = VW G52 (part numbers G052726A2 / G05272601) None

The synthetics will perform much better for you in the winter (I'm originally from Nrn Michigan - Lake Superior's South shore - so can relate to anyone using petroleum gear lube in the winter - can you say 'two handed shifts'?!) I wouldn't recommend a petroleum gear lube in cold country - for both shifting and fuel mileage.


The original G50 is 'heavier' than the latest G052726A2 (at the bottom of the list). The G52 will give very easy winter shifting and the best fuel mileage. We don't know for sure what it's GL rating is - the bottles aren't labeled with anything but a part number - but VW shouldn't spec a fluid that doesn't meet minimum warranty requirements at least.

Closer to the original G50 you'll see Redline MT90, then AMSOIL, then Redline MTL. Folks in hotter climates have said that MT-90 feels like the OEM fluid but can be stiff in the winter. Folks in cooler climates prefer the smooth cold shifting of the MTL. Hopefully that gives you a 'feel' for the viscosity difference.

I'm using the reallllly thin G52 right now - mainly as a fuel mileage test. Shifting is very light (of course, I'm in San Antonio). I have an old transmission (342,000 miles) and a dieselgeek short shift kit and I have to remember to slow my shifts from 1st to 2nd to keep the synchros from grinding - it shifts very, very easily/quickly/smoothly - even out of gear. There's almost none of the 'feedback' you'd get from pushing thru heavier gear lube.

'Bang for the Buck'...
I paid about $34 per liter for the G052726 at the dealer. If you can get it cheaper than the original G50 then go for it! You can get about 4 quarts of AMSOIL for the price of one G052. Either Redline product should be less expensive as well. The G052 might pay for itself over time in fuel savings and should be the absolute best in winter performance.

I hope that helps a bit Yuri.

Andy

edit: spelling. What's a 'cleaper', anyway?

Last edited by AndyH; August 28th, 2006 at 21:39.
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Old August 27th, 2006, 10:18   #200
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Much appreciated !!!

Yes, the G052726A2 is, I believe, much cheaper than the G050000, but since the fluid doesn't get replaced all that often (I hope!!), I don't see the price as being the deciding factor.

I was under the impression that the G052726A2 was NOT a synthetic fluid... was I wrong ???

Yuri.
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Old August 28th, 2006, 06:56   #201
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Its odd, but the G052 specified in the 2004 02J trannys is the mineral based G052 (Why not the synthetic G052). I just changed mine and went with the VW fluid, at $9.65 a liter from 1st VW Parts (Auburn VW), mailed to me. I live in a temperate climate. It can get to 10 deg. F. sometimes.

--Nate
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Old August 28th, 2006, 14:51   #202
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Has anyone tried Redline D4 ATF in an 04+ PD-TDI 5-speed transmission? I switched both my PD-TDIs to Redline MTL and the shifting improved a bit (especially in winter), but I'd like to try Redline D4 ATF since it's thinner, and these transmissions seem to like thinner oils. Does anyone have any success stories with this oil?
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Old September 7th, 2006, 00:32   #203
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Ferrari - I think you are correct and Redline D4 is a very good fluid if you have a application. I had a getrag 5 speed once that used 30W and I think this would have been a great fluid in that application. Redline has allot of faith in their D4 product and said it would even work well in a DSG. But they said because of the vast color difference not to use till warrenty was up.
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Old September 7th, 2006, 03:55   #204
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My test of the AMSOIL CTJ SAE 30 Powershift fluid is going so well it scares me. The transmission shifted better immediately. Then just keeps getting better over the last 5K miles. Change is sometimes unsettling. I'll be pulling a uoa in the spring.

In hot weather it seamed thin. Makes me think a 50W fluid may be better. Something like Mobiles GL-4 fluid.

Side note: Greasing the shift linkage above the transmission on the golf club weight made a great improvement in shifter feel.
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Old September 7th, 2006, 19:28   #205
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My first gear was a nightmare to put in and all other gears where hard to put in.

I remplace the fluid that was in there (looked nice was remplace by the previous owner) with Amsoil MTG 75-90

50 miles later First gear was going in all the time without any effort so are all other gears.

900 miles later it fell even better .

Amsoil Kick Ass !

Btw the Tranny as 267810 miles on it
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Old September 19th, 2006, 22:24   #206
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throwing this in here for fun:

BOSS FULL SYNTHETIC GEAR OIL SAE 75W90
meets the requirements of the
API Service designation GL-4
This Synthetic Gear Oil is engineered to reduce frictional gear drag and protect the
gearing against failures associated with heavy loading. This products exhibits excellent
flowability properties which minimize gear wear in extreme weather conditions.

TYPICAL TEST PROPERTIES
SAE GRADE 75W90
DENSITY @ 15ºC 0.8762
VISCOSITY @ 40ºC,cSt 109
VISCOSITY @ 100ºC, cSt 14.81
VISCOSITY INDEX 141
BROOKFIELD VISCOSITY
Cp @ -40ºC 133,000
FLASH POINT (COC) ºC 204
FIRE POINT (COC) ºC 214
POUR POINT, ºC -47
FOAMING (D-892)
ML@24ºC

*tendency (Seq.1
.2) O/O
*stability @ 5 min (Seq.1
.2 O/O
COLOR L1.5
APPEARANCE (VISUAL) CLEAR

anyone hear of it? thoughts?

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Old September 25th, 2006, 14:46   #207
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okay, so i've read a bunch of threads on this stuff, and can't really draw any conclusions for myself :| i'm going to go with a .658 gear, and fill up with new gear oil. is the redline MTL, MT90 or 75w90 G52 "compliant" ? i live in minnesota so cold shifting is important, and i also have a short shifter... i'm wondering do i want to find an OEM g52 fluid online somewhere or one of the redlines from tdiparts? just wanting the best combination of performance/longevity for the tranny...
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Old September 30th, 2006, 23:24   #208
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Has anyone done a VOA on G052?

Do we know what it's viscosity is?

I'm not that happy with the way the car shifts warm or cold and looking for an alternative, perhaps Redline AT4.
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Old October 1st, 2006, 20:42   #209
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Quote:
Originally Posted by spoilsport
Has anyone done a VOA on G052?

Do we know what it's viscosity is?

I'm not that happy with the way the car shifts warm or cold and looking for an alternative, perhaps Redline AT4.
Which G052, Spoilsport? I assume the G052 171 A2 petroleum? If so...the G052 products (171 and 726) and the G055 products are about as thin as you can get - at least 1 cSt lower than the D4ATF.

What's the issue with shifting? How long has the fluid been installed?
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Old October 1st, 2006, 21:25   #210
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Quote:
Originally Posted by AndyH
Which G052, Spoilsport? I assume the G052 171 A2 petroleum? If so...the G052 products (171 and 726) and the G055 products are about as thin as you can get - at least 1 cSt lower than the D4ATF.

What's the issue with shifting? How long has the fluid been installed?
I changed the fluid out at 100K miles, it has 40K on it.

I bought one of the G052 products at the dealer, after asking for G050. I think it had to be the G052 171 A2 petroleum, as this stuff wasn't thin at all.

As far as issues: Shifts are the opposite of buttery smooth. Shifter feels stiff and inaccurate, hesitates before it goes in gear.. especially first. The linkage was adjusted when I had a DG short shift kit installed by DBW 3 years ago.

Maybe it's time for another adjustment.
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