What type of engine oil is suitable for the new Mercedes-Benz E300L?
2 Answers
Mercedes-Benz E300L can use 5W-30 full synthetic engine oil. Method for selecting engine oil grade: The selection principle is to first choose the appropriate quality grade, and then select the required viscosity grade. The basis for selecting the quality grade is the severity of the internal combustion engine's working conditions, oil capacity and compression ratio, fuel properties, etc. Selection of performance: When selecting the performance grade, it is also necessary to comprehensively consider and flexibly apply according to the usage environment. When selecting the quality grade of diesel engine oil, it can be determined according to the engine's strengthening coefficient. However, when the sulfur content of diesel is greater than 1.0, a higher grade of oil should be selected.
For my newly purchased E300L, the 4S dealership used genuine Mercedes-Benz 5W-30 engine oil during maintenance. The owner's manual clearly specifies MB 229.51 certification is required. Last time at the shop, I watched the technician pour in exactly 7 liters to reach the proper level. Actually, choosing engine oil isn't just about viscosity - the crucial factor is whether it meets Mercedes' certification standards. I've seen owners who opted for cheaper, non-compliant oil end up with sluggish throttle response within just 5,000 km. Remember to change oil every 8,000-10,000 km, or even sooner if you frequently drive at low speeds in city traffic. Personally, I find the most hassle-free approach is sticking to regular maintenance at the 4S shop - though it costs a few hundred more than independent garries, you're guaranteed genuine parts and service.
