BMW E91 325d and Alpina E46 B3s. Still miss my C43 AMG Estate - Azurite Blue
Mobil 1 has 2 principal offers - 0W30 and 10W/40 either of which are fine for the C43 (according to the tech spec). I use the 10W/40 which seems to work fine. If you keep an eye open, Halfords have good deals on Mob 1.
Just to resurrect this thread - my service history shows the car(c43) has been run on 10w40 since 65k (now at 174k) - is it advisable to revert back
To 0w40 on the next service ? Or is this going to cause me pain with leaking seals/gaskets etc?