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GL 4 or GL 5 - "Official Gear Lube Topic"
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Quokka42
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PostPosted: Tue Apr 29, 2014 12:38 am    Post subject: Reply with quote

It would be interesting to know what that slick is? I admit my experience was with friction cones which I don't believe are used in VW LSDs, and I guess it really is a moot point now there are GL5 lubes which are compatible with transaxles - I just wondered if it was another way to know a lube is safe.

Guess not.

There are some great synthetics/semi-synthetics that work well with transaxles and it doesn't need to be changed often, so I'll stick with them. BTW, my favourite has a GL5, but also the MT rating.
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PostPosted: Tue Apr 29, 2014 7:33 am    Post subject: Reply with quote

I hate to sidetrack this thread .. but it isn't a layer of anything on those slick discs. The material itself was just a poor choice as a "friction" material. This is true of both the carbon and brass friction discs that I've seen, either of which are softer than the steel plain plates that they ride against. They have no "surface irregularities" to create required friction against the plain plates. While the brass ones just go slick, the carbon ones first go slick, and then continue to wear and blacken the lube.
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PostPosted: Tue May 20, 2014 4:50 am    Post subject: Reply with quote

I was going to top off my 73 VW bus with the 1700cc motor and tranny with GL5.

I read this helpful thread and do agree that GL5 is safe for these tranny's


Where can you get GL5 oil though??? Autozone/Advance auto parts?

Worst case, could I just use 90w oil?
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PostPosted: Tue May 20, 2014 4:59 am    Post subject: Reply with quote

porschpow wrote:
I was going to top off my 73 VW bus with the 1700cc motor and tranny with GL5.

I read this helpful thread and do agree that GL5 is safe for these tranny's


Where can you get GL5 oil though??? Autozone/Advance auto parts?

Worst case, could I just use 90w oil?


Go with Amsoil 80w-90 and be done with it.

Best of all...it's completely safe & compatible when there is a call for either GL-5 or GL-4 application Wink
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PostPosted: Tue May 20, 2014 5:12 am    Post subject: Reply with quote

Yeah I would, AMSOIL is good stuff, I need it by this Thursday.

I have never notied GL4-5 in stores
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PostPosted: Tue May 20, 2014 7:09 pm    Post subject: Reply with quote

Saw this photo of what EP additives can do to a brass gear and am wondering if the Steering Gear Boxes on the VW Busses have brass gears?
I was thinking of running RedLine GL-4 90w any reason it would not be a good choice for the steering gear or the transaxle for that matter?


The Effects of EP Additives on Gear Boxes.
Image may have been reduced in size. Click image to view fullscreen.

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PostPosted: Wed May 21, 2014 3:57 am    Post subject: Reply with quote

Danwvw wrote:
Saw this photo of what EP additives can do to a brass gear and am wondering if the Steering Gear Boxes on the VW Busses have brass gears?
I was thinking of running RedLine GL-4 90w any reason it would not be a good choice for the steering gear or the transaxle for that matter?


The Effects of EP Additives on Gear Boxes.
Image may have been reduced in size. Click image to view fullscreen.


Wow, so GL-5 did that? Is that a stock gear, or brand new oem?
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PostPosted: Wed May 21, 2014 4:09 am    Post subject: Reply with quote

porschpow wrote:
Danwvw wrote:
Saw this photo of what EP additives can do to a brass gear and am wondering if the Steering Gear Boxes on the VW Busses have brass gears?
I was thinking of running RedLine GL-4 90w any reason it would not be a good choice for the steering gear or the transaxle for that matter?


The Effects of EP Additives on Gear Boxes.
Image may have been reduced in size. Click image to view fullscreen.


Wow, so GL-5 did that? Is that a stock gear, or brand new oem?

While the picture is shocking, you have to read the article to see it's not a transmission but a "worm and worm wheel" combo... much like a steering box.

The article says "Certain extreme pressure (EP) additives can chemically react with these softer metals, causing premature wear and even failure."

"EP additives that contain sulfur cause the most damage to these types of metals."

Modern GL5 oil does not contain sulfur.

Posting that picture and implying this is a VW part is in the "FOX News" style of reporting Rolling Eyes
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PostPosted: Wed May 21, 2014 5:20 am    Post subject: Reply with quote

This is a factory GT3 gear, raced on overheated GL4 oil. This is my own photo, not some internet grab.

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PostPosted: Wed May 21, 2014 5:58 am    Post subject: Reply with quote

Glenn wrote:
Posting that picture and implying this is a VW part is in the "FOX News" style of reporting Rolling Eyes


Which makes complete fabrications, such as ever claiming there was a lube issue, MSNBC style reporting.
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PostPosted: Wed May 21, 2014 7:10 am    Post subject: Reply with quote

miniman82 wrote:
Glenn wrote:
Posting that picture and implying this is a VW part is in the "FOX News" style of reporting Rolling Eyes


Which makes complete fabrications, such as ever claiming there was a lube issue, MSNBC style reporting.

And this never ending topic is CNN style Wink
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Quokka42
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PostPosted: Wed May 21, 2014 9:46 am    Post subject: Reply with quote

Dan's photo reminds me of some tests done years ago that demonstrated the danger of adding too much additives to your oils. I remember molybdenum disulphide was all the rage back then and I used a lot until I saw the results. It's not a bad thing in itself, nor is sulphur or many other EP additives, but when they are present in excessive quantities the results can be disastrous. One of the tests was on a gear similar to the dub's distributor drive gear and with the recommended level of MS2 from some manufacturers it ended up looking something like Dan's.
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PostPosted: Wed May 21, 2014 10:04 am    Post subject: Reply with quote

porschpow wrote:
Danwvw wrote:
Saw this photo of what EP additives can do to a brass gear and am wondering if the Steering Gear Boxes on the VW Busses have brass gears?
I was thinking of running RedLine GL-4 90w any reason it would not be a good choice for the steering gear or the transaxle for that matter?


The Effects of EP Additives on Gear Boxes.
Image may have been reduced in size. Click image to view fullscreen.


Wow, so GL-5 did that? Is that a stock gear, or brand new oem?


Sorry for it sounding like it was a VW Transmission I was talking about, What I am talking about is the VW Steering Gear Box. Not sure what that is a picture is of but it says it's a Worm Gear Box and I thought that is what VW Steering Gear Boxes were.

Any thoughts on using RedLine MT-90 GL4 in the Bus steering Gear Box? I think Napa may have it!
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PostPosted: Thu May 22, 2014 10:37 am    Post subject: Reply with quote

I called Napa and they don't have this Red-Line GL-4 MT-90 I have not tried O'Reilly Yet but just called CarQuest and they say it's a off the shelf item and it's out of stock right now.

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PostPosted: Thu May 22, 2014 5:16 pm    Post subject: Reply with quote

Danwvw wrote:
...... What I am talking about is the VW Steering Gear Box. Not sure what that is a picture is of but it says it's a Worm Gear Box and I thought that is what VW Steering Gear Boxes were.

Any thoughts on using RedLine MT-90 GL4 in the Bus steering Gear Box? I think Napa may have it!


All VW steering boxes use hardened steel gears. No brass whatsoever. Use any gear oil you want.
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PostPosted: Tue May 27, 2014 9:27 pm    Post subject: Reply with quote

for the sake of discussion, are there any differences between "GEAR OIL" and "MANUAL TRANSMISSION OIL"

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PostPosted: Wed May 28, 2014 12:05 am    Post subject: Reply with quote

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if we are too worried about whatever grade, maybe it's best to stick with OEM recommended MTF for modern cars? come to think about it, a Honda manual gearbox made in 2014 and our VW gearbox has more or less same parts, plus i am sure they offer a lot more performance?
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PostPosted: Thu Jun 05, 2014 3:42 pm    Post subject: Reply with quote

It's likely just different wording on the manufacturer's part.

VW says to use "transmission grease" in the steering box. What the heck is that?
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PostPosted: Thu Jun 05, 2014 3:55 pm    Post subject: Reply with quote

Bruce wrote:
VW says to use "transmission grease" in the steering box. What the heck is that?


Here:

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PostPosted: Thu Jun 05, 2014 4:24 pm    Post subject: Reply with quote

glutamodo wrote:
Bruce wrote:
VW says to use "transmission grease" in the steering box. What the heck is that?


Here:

http://members.trainorders.com/android/VW07/steeringboxlube.jpg

http://members.trainorders.com/android/VW07/SteerBoxLiqGreaseSpecs.jpg


Haven't a clue as to what they want you to use, what modern viscosity standard compares to the mentioned WS spec? Replacement Type 1 boxes from TRW come with what looks to be #2 grease in them. Maybe a #1 or #0 grease might be better for an older OEM box? Really have no idea.
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