Just for info for those that like to keep on eye on what oil is going into their BLS, I've discovered GM own brand 5W-30 Dexos 2 long life oil is ok for my own diesel engine and in fact, that grade of oil is recommended in my owners manual. My first two services have had some pretty expensive stuff put in. I have 'phoned both a local Saab dealer and Vauxhall service centre and they both told me that's what they put in the Saab 9-3 and the Vectra for customers who get their own 1.9 TiD cars serviced with them.

Five litres of 5W-30 Dexos 2 can be bought via the well known auction site for £23.99 and that includes free delivery!