Hi
You need an oil that meets the BMW LL04 specification. Our selection can be found through the link below
http://www.opieoils.co.uk/c-686-bmw-longlife-04.aspx
Those oils are all good options as they need to be to meet the BMW specification, so take your pick based on any price/brand preference you have, although if it burns at lot of oil, go for one of the 5w-40s.
This is ideal for the gearbox.
http://www.opieoils.co.uk/p-68895-fu...-mb-23614.aspx
You get 10% off the website prices with the code PASSION
Cheers
Tim