Is this vag oil ok for my gearbox/rear diff?

Sabaselfsit · Jun 24, 2011

Last thing left to service is the gear oil and back axle, which should have a GL-4 SAE 75W-90. Found this vag oil in an internet shop for a good price. It says fully synthetic 75W-90...but is called GL-4+?

I know the IV R32 should only have GL-4, and GL-5 will mess up the gearbox...so what is this + all about? Will this vag oil suit the R both front and rear?

Steve99 · Jun 24, 2011

You want part # G 052 171 A2 for the o2m and nothing else! It does cost more, it does work better.

BOUDAH · Jun 24, 2011

graeme86 said:
Whoa there bunky!

G052 171 A2 only goes in the front transmission and transfer case.

VW call it G51 SAE 75W/90 (synthetic oil)

The rear differential has different oil:

Rear Axle oil: G 052 145 A SAE 75W-90 (synthetic oil)

Capacity: 1.0 litre for oil change

The oil is available (here in Australia at least) in one or half litre bottles

Part number for 1 litre bottle = G 052 145 S2

Part number for 0.5 litre bottle = G 052 145 A1

Part numbers for bottles may vary in US due to non-metric labelling or something

Ok Steve, after idk how many times ive heard u say this, there has got to be a reason. im purchasing mine today.... This is my one last ditch effort beefore i buy a new rearend... is THIS rear diff fluid.. Not to mention my front needs new fluid too. Shop put mobil one in there...ICK.

Sabaselfsit · Jun 24, 2011

Ok. So I put it both front and back, and is this part number G052 171 A2 a 75W-90 GL4 oil? Not straight 75 oil like TITAN SINTOFLUID FE 75W that one internet shop tell me I should have in my 6 speed manual...

graeme86 · Jun 24, 2011

Whoa there bunky!

G052 171 A2 only goes in the front transmission and transfer case.

VW call it G51 SAE 75W/90 (synthetic oil)

The rear differential has different oil:

Rear Axle oil: G 052 145 A SAE 75W-90 (synthetic oil)

Capacity: 1.0 litre for oil change

The oil is available (here in Australia at least) in one or half litre bottles

Part number for 1 litre bottle = G 052 145 S2

Part number for 0.5 litre bottle = G 052 145 A1

Part numbers for bottles may vary in US due to non-metric labelling or something

Sabaselfsit · Jun 24, 2011

graeme86 said:
Whoa there bunky!

Bunky!? :sly:

Thank you very much...that's an awesome close to stunning answer. Ordering it right away. :wave:

BOUDAH · Jun 24, 2011

yes i know. i mis typed what i wantd to say. basically he has been telling me to use OEM oil and ive been stalling. All i was getting at was that i will be putting in all OEM fluid. Thanks for the PNs

graeme86 · Jun 24, 2011

:thumbup:

Please report back if these part numbers are superseded.

Seems to be a couple of posts around various forums where there are new numbers now for these oils.

BOUDAH · Jun 24, 2011

i called VW, the S2 and A2 PNs are the ones u want. the "A" they couldnt find. :thumbup:

graeme86 · Jun 24, 2011

The "A1" is just a small top up bottle you can get over here.

BOUDAH · Jun 24, 2011

Thats correct. I asked about that too and he was clueless, lol

graeme86 · Jun 24, 2011

Sorry for confusion.

G 052 145 A is what VW designate the oil (like G51 for the front)

That particular number is not an actual part number as such.

The part numbers are just the various bottles they supply.

Is this vag oil ok for my gearbox/rear diff?

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