I recently purchased a 2018 F39 / X2, which has a B46O engine. BMW recommends BMW TwinPower Turbo Longlife-14 FE + SAE 0W-20 for this engine. When I picked up the vehicle, it had a bottle of BMW TwinPower Turbo Longlife-01 SAE 0W-30 in the rear storage compartment. I'm not clear why the dealership gave me a bottle of 0W-30 when 0W-20 is recommended.
I understand the B38/B46/B48/B58 engines were "designed" for the 0W-20 oil, but I'm wondering how much of the motivation for using such a thin oil is fuel economy or long oil change intervals, as opposed to long engine life. For the record, I've read the Oil University series so I understand the thinking behind thinner oil.
I would appreciate the opinions of this forum regarding whether I should use 0W-20 or 0W-30 oil in my vehicle. Are there any differences between the Longlife-01 and Longlife-14 standards that would imply one oil over the other?
Also, when should I change the oil for the first time? BMW recommends 15000 km oil change interval and service is included. I'm considering changing the oil myself between paid for changes. The vehicle currently has around 1500 kms on the odometer and I'm planning a 1500 km road trip.
Thanks in advance.
I understand the B38/B46/B48/B58 engines were "designed" for the 0W-20 oil, but I'm wondering how much of the motivation for using such a thin oil is fuel economy or long oil change intervals, as opposed to long engine life. For the record, I've read the Oil University series so I understand the thinking behind thinner oil.
I would appreciate the opinions of this forum regarding whether I should use 0W-20 or 0W-30 oil in my vehicle. Are there any differences between the Longlife-01 and Longlife-14 standards that would imply one oil over the other?
Also, when should I change the oil for the first time? BMW recommends 15000 km oil change interval and service is included. I'm considering changing the oil myself between paid for changes. The vehicle currently has around 1500 kms on the odometer and I'm planning a 1500 km road trip.
Thanks in advance.