The inclusion of "FE+" signifies its enhanced compatibility with the fuel-saving features present in these engines, particularly the automatic start-stop system. Using an oil that does not meet this standard can lead to increased deposits and potentially interfere with the DPF’s function.
BMW Longlife-17 FE+ Vs Standard: Key Differences and Why It Matters
The formulation is designed to maintain optimal fluidity at low temperatures, ensuring easier starts and reduced wear during cold conditions. The designation indicates compatibility with engines featuring gasoline direct injection (GDI) and turbocharging, where the risk of soot buildup is higher.
This specification mandates a Low SAPS (Sulphated Ash, Phosphorus, Sulfur) formulation, which is critical for protecting the Diesel Particulate Filter (DPF) in gasoline engines, even though it is primarily a lubricant for petrol units. This specification, often found in the owner’s manual, dictates a precise blend that ensures optimal performance, longevity, and compliance with warranty requirements.
BMW Longlife-17 FE+ Vs Standard: Key Differences and Benefits
The primary benefit, however, is the protection it provides against soot accumulation and sludge formation, which keeps internal components clean and ensures the engine operates efficiently over its lifespan. Viscosity Recommended Climate Key Characteristic 0W-30 Colder regions or harsh winters Superior cold-flow properties for easier starting 5W-30 Moderate climates Balanced performance across a wide temperature range Selecting the Right Oil for Your BMW.
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