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Discussion Starter #1 (Edited)
Hi all,
First of all sorry if i am starting something here that was discussed elsewhere already. Can i use 75w140 fully synthetic oil for both FD and transmission on my 2009 R1200RT? Also can i use any moly or is there a specific one?
Thank you
 

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Hi all,
First of all sorry if i am starting something here that was discussed elsewhere already. Can i use 75w140 fully synthetic oil for both FD and transmission on my 2009 R1200RT? Also can i use any moly or is there a specific one?
Thank you
Spec for the 2009 calls for 75W90, not 75W140, for both final drive and transmission. In addition, the FD further specifies Castrol XAF-SO but there is some contention around here (ahem) whether the specific brand is important. There's no brand specification for the transmission.

That Castrol spec came from a time when BMW was sourcing their OEM label lubricants from Castrol. They've recently switched to Shell but I'm not clear whether they've upgraded their old requirements to reflect their new source.

Clear as mud, huh?

And yeah, many a jolly discussion here on these topics.

JayJay
 

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Hi all,
First of all sorry if i am starting something here that was discussed elsewhere already. Can i use 75w140 fully synthetic oil for both FD and transmission on my 2009 R1200RT? Also can i use any moly or is there a specific one?
Thank you
I would use 75w140 synthetic in my RT just as I have used it (Mobil 1) in my 3 LTs in the past. I now use Liqui-Moly 75W90 Synthetic Racing gear oil I get from beemerboneyard,com because I buy the whole kits but I would not hesitate to top off with Mobil 1 75w140 synthetic if I ever had to. Flame suit ON...:grin:
 

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I would use 75w140 synthetic in my RT just as I have used it (Mobil 1) in my 3 LTs in the past. I now use Liqui-Moly 75W90 Synthetic Racing gear oil I get from beemerboneyard,com because I buy the whole kits but I would not hesitate to top off with Mobil 1 75w140 synthetic if I ever had to. Flame suit ON...:grin:
This.

75w140 Mobil 1 is fine no hesitation to use in any FD. I too ran it in my LT and my FJR.

I have also been converted to BBYard kits and Liqui-Moly both for FD and in the new weight 5W40 for the motor.

You are fine with Mobil 1 though and as said if I for some reason needed to change FD fluid on the road I would use Mobil 1 with no hesitation.
 

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Spec for the 2009 calls for 75W90, not 75W140, for both final drive and transmission. In addition, the FD further specifies Castrol XAF-SO but there is some contention around here (ahem) whether the specific brand is important. There's no brand specification for the transmission.

That Castrol spec came from a time when BMW was sourcing their OEM label lubricants from Castrol. They've recently switched to Shell but I'm not clear whether they've upgraded their old requirements to reflect their new source.

Clear as mud, huh?

And yeah, many a jolly discussion here on these topics.

JayJay
UPDATE: I was at my dealer yesterday picking up some parts for my airhead and noticed a jug of the new (Shell) gear lube on the shelf. It's labelled XAF-SO as was the Castrol stuff.

JayJay
 

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UPDATE: I was at my dealer yesterday picking up some parts for my airhead and noticed a jug of the new (Shell) gear lube on the shelf. It's labelled XAF-SO as was the Castrol stuff.

JayJay
...as is the Land Rover LRN 7591 differential oil that several of us have been using!
 

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No, you can't.

For your final drive, the only fluid approved by BMW is Castrol SAF-XO. There is no equivalent from another manufacturer and this fluid is not available at your FLAPS. It's now available in really small bottles at your dealer.

Do not think of 75W-90 as a specification. It is simply a viscosity indicator and not a formula and they are not all the same. Printing 75W-90 on the bottle does not prevent a manufacturer from adding more additives.
 

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No, you can't.

For your final drive, the only fluid approved by BMW is Castrol SAF-XO. There is no equivalent from another manufacturer and this fluid is not available at your FLAPS. It's now available in really small bottles at your dealer.

Do not think of 75W-90 as a specification. It is simply a viscosity indicator and not a formula and they are not all the same. Printing 75W-90 on the bottle does not prevent a manufacturer from adding more additives.
OK, Mr. Know all........read this!

2003-2009 Land Rover Range Rover Differential Oil - Castrol LRN7591 - Rear Differential - PartsGeek.com
 

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Discussion Starter #10
Thank you all for taking the time and replying to my post. I am new to bmws and to forums so i am twice as happy to find a place and learn about things. I have zapped the fuel strip based on info on this forum so thats working again, also managed to replace the alternator belt and now just need to do the transmission and fd oil changes plus the valve clearances and i am all set. Oh and thanks to this forum i also managed to wire up my tomtom. So thanks all!
 

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Thank you all for taking the time and replying to my post. I am new to bmws and to forums so i am twice as happy to find a place and learn about things. I have zapped the fuel strip based on info on this forum so thats working again, also managed to replace the alternator belt and now just need to do the transmission and fd oil changes plus the valve clearances and i am all set. Oh and thanks to this forum i also managed to wire up my tomtom. So thanks all!
Just an aside regarding the fuel strip! I can't see where you are located, but if you are in the US, you should know that BMW had put out a letter to all owners to the effect that they will replace defective fuel strips for free! Just go and see your dealer.
 

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Discussion Starter #12
Hi, London, UK. It has been been replaced once already i have checked with dealership. They said thats what the recall covers, a one off replacement. It was faulty again so i zapped it. They quoted me £220 so i thought i was going to give the piezo method a try.
 

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Ahhh....that's too bad! Over here in the US, BMW had yielded and will cover the fuel strip under warranty for something like 12 years (don't remember the exact number, but it's about the right magnitude).
 
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