Extreme Racing Oil XD15W-40C Heavy Duty Diesel Engine Oil CK-4 (Case of 6 Gallons)

Extreme Racing Oil XD15W-40C is a premium heavy-duty diesel engine oil formulated to meet the demanding requirements of modern diesel engines. This CK-4 rated oil provides superior protection for high-performance and heavy-duty applications.

Key Features:

• CK-4 specification for advanced emission control systems
• 15W-40 multi-grade viscosity for year-round protection
• Superior wear protection for engines operating under severe conditions
• Excellent thermal stability and oxidation resistance
• Compatible with diesel particulate filters (DPF) and emissions systems
• Extends engine life and reduces maintenance costs

This case contains six 1-gallon bottles, ideal for fleet maintenance, racing teams, or professional workshops. The CK-4 rating ensures compatibility with 2017 and newer diesel engines while remaining backward compatible with older CJ-4, CI-4 PLUS, CI-4, and CH-4 specifications.