Gearbox Oil Twincam RT

Having Problems with your BMW R1200RT/R1250RT? or have some Maintenance and Service questions?
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David.
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Re: Gearbox Oil Twincam RT

Post by David. »

simbo wrote:Will you be using what's left in the bottle in the final drive? Be a shame to see it sat on the shelf for the next 12 months.
Recently purchased some Comma EP80W-90 GL-4 for the XJ650 FD unit, it has a shelf life of 5 years from date of manufacture.

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Last edited by David. on Wed Jan 16, 2019 11:19 am, edited 1 time in total.
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Re: Gearbox Oil Twincam RT

Post by David. »

David. wrote:I use the Castrol Syntrax Longlife 75w-90 (Formerly SAF-XO 75w-90) in the gearbox & final drive.

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I see just to confuse matters, Castrol have changed the name and packaging again, Castrol Transmax Axle Long Life 75W-90 (Formerly SAF-XO 75W-90 and Syntrax Longlife 75W-90).

As confirmed by Motorworks, Motorworks BMW Motorcycle Specialists - Shop - Spares and Accessories
Last edited by David. on Fri Nov 26, 2021 10:53 am, edited 1 time in total.
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Re: Gearbox Oil Twincam RT

Post by David. »

Have recently been looking for some Castrol Transmax Axle Long Life 75W-90, it's currently out of stock at OPIE Oils, Motorworks and Nippy Normans.

Please can anyone recommend a UK supplier or suggest a suitable alternative, thank you.

Liqui Moly looks like a good alternative, https://www.infinitymotorcycles.com/pro ... atch%20All
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Re: Gearbox Oil Twincam RT

Post by Stu »

David. wrote: Sun Oct 16, 2022 10:40 am Have recently been looking for some Castrol Transmax Axle Long Life 75W-90, it's currently out of stock at OPIE Oils, Motorworks and Nippy Normans.

Please can anyone recommend a UK supplier or suggest a suitable alternative, thank you.

Liqui Moly looks like a good alternative, https://www.infinitymotorcycles.com/pro ... atch%20All
Amazon?

Is this the same

https://www.amazon.co.uk/Castrol-Syntra ... =8-1-fkmr0
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Re: Gearbox Oil Twincam RT

Post by David. »

sakm wrote: Sun Oct 16, 2022 12:07 pmIs this the same.

https://www.amazon.co.uk/Castrol-Syntra ... =8-1-fkmr0
No, I don't think so, Castrol do three variants of Transmax, ATF, Manual & Axle, https://www.castrol.com/en_gb/united-ki ... nsmax.html

Axle Long Life is the spec. required, https://msdspds.castrol.com/bpglis/Fusi ... az3hzs.pdf
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Re: Gearbox Oil Twincam RT

Post by Stu »

I'm not at home at the minute but what's the actual spec that the service manual asks for?

Transmax universal says its for transmissions final drives and differentials and I'm pretty sure that meets the spec so maybe check that one out
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Re: Gearbox Oil Twincam RT

Post by David. »

The BMW service parts list asks for BMW Synthetic OSP which is equivalent to SAF-XO as per the Haynes Manual.

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https://www.deutsche-parts.co.uk/331176 ... -part.html

This is the SAF-XO data sheet, https://www.ge39.com/files/SAF_XO_SAF_XJ_B1174_96.pdf

Over the years, Castrol have re-branded SAF-XO > Syntrax > Transmax Axle.

This is the Transmax Axle data sheet, https://msdspds.castrol.com/bpglis/Fusi ... az3hzs.pdf

Both the SAF-XO and Transmax Axle specs. look the same.
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Re: Gearbox Oil Twincam RT

Post by Stu »

apparently this is the replacement for Castrol 75W-90 C-SAF-XO if it helps at all

https://classicoilsshop.co.uk/castrol-syntrax-75w90
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Re: Gearbox Oil Twincam RT

Post by David. »

I would agree that Syntrax replaced SAF-XO but Castrol seem to have now changed Syntrax to Transmax Axle.

https://www.motorworks.co.uk/gear-oil-oia11056-1.html

Just spotted that Motorworks do list some alternatives.
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Re: Gearbox Oil Twincam RT

Post by Stu »

I have dropped Castrol an email to see what they say

I suspect whatever you use as long as it meets the spec it will be more than good enough
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Re: Gearbox Oil Twincam RT

Post by David. »

sakm wrote: Sun Oct 16, 2022 3:18 pm I have dropped Castrol an email to see what they say.
It would be interesting to know why Transmax Axle is currently out of stock.
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Re: Gearbox Oil Twincam RT

Post by Stu »

Maybe there is another replacement we don't know about yet
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Re: Gearbox Oil Twincam RT

Post by David. »

sakm wrote: Sun Oct 16, 2022 3:18 pm I suspect whatever you use as long as it meets the spec. it will be more than good enough.
I'm sure you a right but if available, would rather use the BMW recommended Castrol stuff.
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Re: Gearbox Oil Twincam RT

Post by David. »

sakm wrote: Sun Oct 16, 2022 3:23 pm Maybe there is another replacement we don't know about yet.
This is the current Castrol recommendation, https://www.castrol.com/en_gb/united-ki ... haft-drive select "Shaft Drive".
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Re: Gearbox Oil Twincam RT

Post by David. »

This would seem to confirm that Red Line 75W90 meets the BMW SAF-XO spec. too, although more expensive from the USA.

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