Gearbox Oil Twincam RT

[David.]

There is a lot of discussion on other forums to "suggest" that OEM BMW Synthetic OSP is relabelled Castrol SAF-XO. Also that the Castrol SAF-XO is factory fit. In 2010 when I bought my first Camhead, the supplying dealer gave me a BMW motorcycle lubricant recommendation chart. At the time, BMW recommended Castrol, EPX 80W-90 for the gear box and SAF-XO for the final drive. I believe the recommendation is now to use 75W-90 SAF-XO for both applications. Makes sense as 1 litre is sufficient for the gear box and final drive oil changes.

If the Castrol SAF-XO (or new equivalent) had been available when required, I would have bought it. On this occasion, I'll use Liqui Moly, I'm sure it'll be just fine.

After Castrol, Shell became the BMW preferred oil supplier. I don't think BMW make their own oil, Advantec (engine oil) is made by Shell.

[Dreadnought]

There is a lot of discussion on other forums to "suggest" that OEM BMW Synthetic OSP is relabelled Castrol SAF-XO. Also that the Castrol SAF-XO is factory fit. In 2010 when I bought my first Camhead, the supplying dealer gave me a BMW motorcycle lubricant recommendation chart. At the time, BMW recommended Castrol, EPX 80W-90 for the gear box and SAF-XO for the final drive. I believe the recommendation is now to use 75W-90 SAF-XO for both applications. Makes sense as 1 litre is sufficient for the gear box and final drive oil changes.

If the Castrol SAF-XO (or new equivalent) had been available when required, I would have bought it. On this occasion, I'll use Liqui Moly, I'm sure it'll be just fine.

After Castrol, Shell became the BMW preferred oil supplier. I don't think BMW make their own oil, Advantec (engine oil) is made by Shell.

Who suggested BMW make their own oil, you missed the point

[Stu]

@David. Transmax is back in stock

https://www.motorworks.co.uk/final-driv ... 000-1.html

[David.]

Motorworks currently have Castrol Gear oil 'Transmax Axle Longlife', 75W90 synthetic, 1 litre at a promo price of £15.90.

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

Or, "Click & Collect" from Euro Car Parts for £17.99, https://www.eurocarparts.com/p/castrol- ... 20Products

[Wuls]

I only use the 75W/140 from Castrol. It's a bit thicker and runs fine on my R1200RT-2008 Gearbox and Final Drive.
My 2cents.