Motul 8100 X-Cess Gen2 5W-40 Full Synthetic Engine Oil — 5L, European OEM Approvals, High-Temp Stability

Motul 8100 X-Cess Gen2 SAE 5W-40 is a full-synthetic engine oil formulated to meet multiple European OEM approvals and protect high-performance gasoline engines across varied driving conditions.

Built as a versatile lubricant for European performance and sport engines, this 5-liter bottle of Motul 8100 X-Cess Gen2 provides thermal stability, cold-start protection, and detergency suited to turbocharged and naturally aspirated gas engines. It carries numerous OEM approvals — BMW Longlife-01, Mercedes MB-Approval 229.5/226.5, Porsche A40, Volkswagen 502/505, Renault RN0710/RN0700, and others — making it a convenient single-product solution for multi-brand garages and owners.

Which engines and approvals does this oil support?

Motul 8100 X-Cess Gen2 is approved for many mainstream and high-performance European gasoline engines. It’s the recommended Longlife-01 product for North American pre-2019 BMW gasoline engines and is compatible with many Porsche, Mercedes-AMG, VW, Renault, FIAT, and GM-Opel models.

• BMW Longlife-01 (North American gasoline applications)
• Mercedes-Benz MB-Approval 229.5 and 226.5; Porsche A40
• Volkswagen 502 00 and 505 00; Renault RN0710 and RN0700
• FIAT 9.55535-H2, GM-Opel LL B-025 — broad multi-brand fitment

How does it perform under heat and sustained high load?

The formulation delivers strong high-temperature/high-shear (HTHS) performance to preserve oil film at elevated engine temperatures and RPM. With a viscosity index of 186 and an HTHS around 3.8 mPa·s at 150°C, it resists viscosity breakdown during track use or long highway pulls.

• HTHS ~3.8 mPa·s maintains protective film under heavy stress
• Flash point ~228°C reduces volatile loss in severe heat
• Engine families like N54/N55, B58, M156, and 3.0T TFSI benefit from stability

Will this oil protect against sludge and support longer drain intervals?

High detergency and dispersant levels give the oil strong soot-handling capacity, helping to limit deposit formation and maintain oil flow over extended service periods. The Total Base Number (TBN) of 10.2 mg KOH/g supports neutralization of acids and sustained performance between services.

• TBN 10.2 mg KOH/g aids acid neutralization and deposit control
• Formulation reduces soot-related thickening and sludge buildup
• Catalytic converter compatibility preserves emissions hardware lifespan

How does it behave at cold starts and in winter climates?

Designed for rapid circulation in low temperatures, this 5W-40 formula ensures quicker oil delivery at startup to reduce wear during the critical first seconds of operation. A pour point down to −49°F (−45°C) helps maintain fluidity in freezing conditions.

• Fast low-temperature flow reduces startup wear on valvetrains
• Pour point near −49°F ensures pumpability in very cold weather
• Helps protect VANOS, Valvetronic, and timing chain-dependent systems

Who is this for? Motul 8100 X-Cess Gen2 5W-40 in a 5-liter bottle is aimed at owners and independent shops servicing European gasoline cars that require Longlife-01 or the listed OEM approvals — especially enthusiasts with BMW M-series, Porsche 911, Mercedes-AMG, and other performance platforms. It’s appropriate for drivers seeking a single, full-synthetic product that balances cold-start protection, thermal stability for spirited driving, and detergency for extended drain cycles. Note: it is not intended for modern diesel engines with DPFs; choose Motul X-Clean Gen2 for those applications.