MB229.71 is a new addition to the range of active Daimler specifications and represents an improvement in fuel economy performance when compared to previous Daimler specifications. This is driven by continued pressures on OEMs to improve vehicle fuel efficiency to meet tightening CO2 emissions legislation which will come into force in 2021.
Engine lubricants approved to MB229.71 are premium lower SAPS1 lubricants typically aligning with a baseline level of performance as defined in ACEA C5-16. They are designed for use in high performance gasoline and light duty diesel engines where advanced aftertreatment systems including as Three-Way Catalysts (TWC), Diesel Particulate Filters (DPFs) and more recently Gasoline Particulate Filters (GPFs) are installed.
The main physical and chemical requirements for MB229.71 are shown below:
|HTHS viscosity at 150°C||CEC L-36-A-90||cP||≥ 2.6 and ≤ 2.9|
|Kinematic Viscosity at 100°C||ASTM D445||cP||≥7.8|
|Sulphated Ash||ASTM D874||%wt||≤ 0.8|
|Phosphorus||ASTM D5185||%wt||≥ 0.07 and ≤ 0.09|
|Sulfur||ASTM D5185||%wt||≤ 0.3|
|Evaporation loss (NOACK) at 250°C||CEC L-40-93||%||≤ 11|
|Total Base Number||ASTM D2896||mgKOH/g||≥ 7.5|
Note 1: SAPS refers to Sulphated Ash, Phosphorus and Sulfur, the levels of which are often restricted in the latest performance specifications.
Engine lubricants approved to MB229.71 are required to have a high temperature high shear rate (HTHS) at 150°C of between 2.6 and 2.9cP and are commonly referred to as low HTHS lubricants. MB229.71 also allows either SAE 0W-20 or 5W-20 lubricants to be approved,
For more information on MB229.71 oils, contact your Lubrizol representative.