Which oil - Castrol, Mobil or Shell?
Oil service is coming up on the 10th May, and I've just been informed by my BMW dealer that they are to be using Shell Helix Ultra oil. Doesn't sound too impressive to me :\
Choices are stick with what BM are sticking in, Castrol Edge (What I've been rather expensively topping up with, thinking that's what BMW had used!) or Mobil 1.
Anyone have any opinions?
Oil service is coming up on the 10th May, and I've just been informed by my BMW dealer that they are to be using Shell Helix Ultra oil. Doesn't sound too impressive to me :\
Choices are stick with what BM are sticking in, Castrol Edge (What I've been rather expensively topping up with, thinking that's what BMW had used!) or Mobil 1.
Anyone have any opinions?

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