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Kashmir

70W-80 Hypoid Axle G3

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Kashmir

Hello All. Has anyone found an alternative for the BMW 70W-80 Hypoid Axle G3 fluid? (P/N: 83 22 2 413 512) I see that it is a GL5 fluid and Redline makes final drive fluid within this range. At $60 for 500 ml seems kind of steep.

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Bill_Walker

I don't have an answer to your question.  Apparently this is your first post, so welcome to the board!  

 

I do need to point out that the "Product Reviews by Members" subforum is intended for just that, product reviews.  It's not a place to ask questions.  Since your question is not specific to a particular BMW model, I'd guess it belongs in the "Bike Related Things" subforum, one level up from this, or else in "Motorcycle Talk".

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Kashmir

Thank you for the reply and information. 

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dirtrider
1 hour ago, Kashmir said:

Hello All. Has anyone found an alternative for the BMW 70W-80 Hypoid Axle G3 fluid? (P/N: 83 22 2 413 512) I see that it is a GL5 fluid and Redline makes final drive fluid within this range. At $60 for 500 ml seems kind of steep.

Afternoon Kashmir

 

Is this for a BMW Wethead or some other BMW model? There is a (BIG) difference between  GL-3 and BMW's G3 as they are two are two different things.  API rating GL-3 is an obsolete gear oil. 

"G3" is the BMW name for their current gear oil. They've offered G1, G2, G3, G4, G5. I believe the current BMW gear oils carry an API rating of GL-4  or  GL-5. The GL-4 is usually for older (dry clutch) transmissions and GL-5 is usually for final drives. 

 

If you go with Red Line just be sure it is a GL-5 as most Red Line 70W-80 is (was anyhow) a GL-4, GL-4 is ok in transmissions but is a little lacking in gear tooth scuff protection for a Hypoid type final drive. 

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Kashmir

This is for a 2020 RT1250RT. This is what the manual calls for. $60 for 500 ml! BMW must need money to pay for weeping/leaking from calipers :-)

Oil.PNG

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Twisties

I looked up what I think is the owner's manual for this bike and for the rear axle differential the specification reads:

 

"SAE 70W-80 / hypoid axle G3"

 

 

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dirtrider
17 minutes ago, Twisties said:

I looked up what I think is the owner's manual for this bike and for the rear axle differential the specification reads:

 

"SAE 70W-80 / hypoid axle G3"

 

 

Evening Twisties

 

The BMW G3 is not the API viscosity, it is part of the gear oil name, the BMW G3 gear oil is actually an API GL-5 gear oil. 

 

A Motorcycle is single track vehicle (only 1 rear wheel) so it doesn't have a differential, it has a final drive. 

 

 

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Dave_in_TX

Mopar makes a synthetic 70W80 GL5 gear and axle oil that may suffice. It's not G3 but that appears to be a BMW identifier.

 

There is a thread about this on advrider.com. According to that, the BMW specified oil isn't available from BMW motorcycle dealers and the dealers are using the 75W90 that was used in the 1200s in the 1250s.

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Twisties
On 10/21/2020 at 3:15 PM, dirtrider said:

Evening Twisties

 

The BMW G3 is not the API viscosity, it is part of the gear oil name, the BMW G3 gear oil is actually an API GL-5 gear oil. 

 

A Motorcycle is single track vehicle (only 1 rear wheel) so it doesn't have a differential, it has a final drive. 

 

 

 

Never the less, that is what the manual says, exact words.  

rt.png

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dirtrider
14 hours ago, Twisties said:

 

Never the less, that is what the manual says, exact words.  

 

Morning  Twisties

 

Yes, the manual says that & the gear oil bottle container shows "SAE 70W-80 / hypoid axle G3" in the gear-oil name.

 

But you wrote --- "specification" reads: "SAE 70W-80 / hypoid axle G3" ,  That is not the specification that is the BMW suggested gear oil by name. 

 

The specification actually is:  SAE 70W-80 /  GL-5

 

Not trying to give you a hard time, just trying to clarify this for future readers that the gear oil specification is an  SAE 70W-80  GL-5 not the G3 shown in the name. 

 

BMW is trying to be as confusing as possible per their usual.  

 

 

 

 

 

G3 gear oil.JPG

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Dave_in_TX
On 10/25/2020 at 5:59 AM, dirtrider said:

Morning  Twisties

 

Yes, the manual says that & the gear oil bottle container shows "SAE 70W-80 / hypoid axle G3" in the gear-oil name.

 

But you wrote --- "specification" reads: "SAE 70W-80 / hypoid axle G3" ,  That is not the specification that is the BMW suggested gear oil by name. 

 

The specification actually is:  SAE 70W-80 /  GL-5

 

Not trying to give you a hard time, just trying to clarify this for future readers that the gear oil specification is an  SAE 70W-80  GL-5 not the G3 shown in the name. 

 

BMW is trying to be as confusing as possible per their usual.  

 

 

 

 

 

G3 gear oil.JPG

I just looked at the manual for my 2020 R1250GS. Unlike the oil information on page 223 which states to use SAE 5W40, API SL/JASO MA2., and recommends BMW ADVANTEC, page 225 explicitly  states to use SAE 70W-80 / hypoid axle G3 rather than stating to use 70W80 GL5 and recommending G3. I'm no lawyer but if G3 is indeed BMW only, then that would seem to violate the Moss Magnusson act.

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Groanup

I tried to tell myself I'd be sorry, but damn if I didn't click on an oil thread anyway...

:4607:

I hope y'all get it figured out...

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