Gearbox oil and FDU oil...Which ones ?

[andrwboul]

Hi, another newbie question. I have searched previous questions...still unsure ...Advice please ! exact oil you guys recommend R1100S gearbox and diff. ? Thankyou - help much appreciated. Andrew

[nab 301]

...Advice please ! exact oil you guys recommend R1100S gearbox and diff. ? Thankyou - help much appreciated. Andrew

The original factory recommended oil is SAE 90 GL , ( correction should read GL5) obviously oils are constantly evolving so I use what's available locally to me which happens to be Eurol Fultrasyn 75w90 GL3/4/5 as listed in their online oil advisor. Part number E110076 1L

http://www.eurol.com/en/37-products/54- ... hqIqA.html

[andrwboul]

Just to be clear - do I need a straight oil or an EP ? Thanks again- Andrew

[nab 301]

Afaik GL5 is the important bit and GL5 is an EP oil although not all manufacturers print EP on the containers .
As above the BMW workshop manual states SAE 90 GL5 , that's why I posted the link above and checking with other manufacturers they all list similar although don't mention EP. Alternatively Opie oils (in the business section on here) have an advice line /email enquiry section.

[andrwboul]

Ahh OK , Thankyou for taking the time to reply - Andrew

[Crazy Kev]

I use Halfords 80/90 gear oil, 1ltr gearbox about a 1/4ltr rear diff or up to the Inner lower edge of the bolt hole same with gearbox! but check your manual!!

[dysondiver]

im running miller oils , their crx75 90 nt the nt is nano tech ,,, i think that translates into molly or tungsten di sulphide or the likes in it ,,, but it seems to be doing the job , and its not tragically dear .