Just about to replace drive shaft oil seals and refill the box with new oil. I was planning to pop down to Volvo and just buy Volvo stuff - is that the optimal course of action or would anybody recommend something different? This in my T5, M56H box, nothing fancy. Engine is mildly tuned, again nothing fancy, to be used for road use and the odd track day.

There's plenty of marketing material for different oil brands out there, and if I believed it all I would have 5 different oils....
Thanks for any tips. W:-)