Many newer BMW models equipped with B-series engines (such as the B58 and B48) specify BMW Longlife-14 FE+ (LL-14 FE+) 0W-20 engine oil.
While this oil meets BMW's factory specification, we generally recommend using a BMW Longlife-01 (LL-01) approved oil when it is appropriate for your vehicle and operating conditions.
LL-14 FE+ was developed to support improved fuel economy and help manufacturers meet increasingly stringent emissions and efficiency standards. Compared to LL-01 oils, LL-14 FE+ typically uses a lower-viscosity formulation that prioritizes fuel efficiency. In contrast, LL-01 oils generally provide greater film strength and shear stability, making them a popular choice among enthusiasts and performance-oriented drivers seeking additional engine protection, particularly in demanding driving conditions.
For customers who prioritize long-term engine protection over maximizing fuel economy, we recommend using a high-quality BMW LL-01-approved oil, provided it is compatible with your specific engine and model year.
Please contact us here if you have additional questions!