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Royal Purple engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Royal Purple lineup with fast shipping and expert fitment support — order with confidence.
Experience unparalleled protection for your heavy-duty diesel engine with Royal Purple Duralec Super Diesel 15W-40 CK-4 Motor Oil. This 1-quart bottle delivers advanced synthetic lubrication specifically formulated to meet the rigorous demands of modern diesel engines. Duralec CK-4 is engineered to provide exceptional wear protection, reduce soot-induced viscosity increase, and control oxidation, ensuring optimal engine performance and extended component life even under severe operating conditions.
Whether you drive a BMW 3 Series (1986-1991) or a BMW 5 Series (1989-1990) with a diesel conversion, this 15W-40 oil is designed to enhance durability and efficiency. Its robust formulation is ideal for both on-highway and off-highway diesel applications, offering peace of mind and reliable performance. Find your Royal Purple Duralec Super Diesel oil at GGCRACING.
| Years | Make | Model | Trim |
|---|---|---|---|
| 1994-2001 | AM General | Hummer | Base |
| 1996-1997 | Acura | SLX | Base |
| 1996-1999 | Acura | SLX | Premium |
| 1997-1998 | Aston Martin | DB7 | Base |
| 1997-1998 | Aston Martin | DB7 | Volante |
| 2000-2002 | Aston Martin | DB7 | Vantage |
| 2000-2002 | Aston Martin | DB7 | Vantage Volante |
| 1991-1998 | BMW | 318i | Base |
| 1991-1997 | BMW | 318is | Base |
| 1995-1999 | BMW | 318ti | Base |
| 1986-1988 | BMW | 325 | Base |
| 1986-1987 | BMW | 325e | Base |
| 1986-1987 | BMW | 325es | Base |
| 1987-1995 | BMW | 325i | Base |
| 1988-1991 | BMW | 325iX | Base |
| 1987-1995 | BMW | 325is | Base |
| 1996-1997 | BMW | 328i | Base |
| 1996-1997 | BMW | 328is | Base |
| 1989-1995 | BMW | 525i | Base |
| 1993 | BMW | 525iT | Base |
| 1994-1995 | BMW | 530i | Base |
| 1989-1993 | BMW | 535i | Base |
| 1994-1995 | BMW | 540i | Base |
| 1988-1991 | BMW | M3 | Base |
| 1995 | BMW | M3 | Lightweight |
| 1995-1998 | BMW | M3 | Base |
| 1997 | Chevrolet | C3500 | Base |
| 1997-1998 | Chevrolet | C3500 | Cheyenne |
| 1997-1998 | Chevrolet | C3500 | Silverado |
| 1999-2000 | Chevrolet | C3500 | Base |
| 1999-2000 | Chevrolet | C3500 | LS |
| 1996-2002 | Chevrolet | Express 2500 | LS |
| 1997-2002 | Chevrolet | Express 2500 | Base |
| 2010-2016 | Chevrolet | Express 2500 | Base |
| 1996-2002 | Chevrolet | Express 3500 | Base |
| 1996-2002 | Chevrolet | Express 3500 | LS |
| 2010-2016 | Chevrolet | Express 3500 | Base |
| 2011-2016 | Chevrolet | Express 3500 | LS |
| 2011-2016 | Chevrolet | Express 3500 | LT |
| 2002-2005 | Chevrolet | Silverado 2500 HD | Base |
| 2002-2006 | Chevrolet | Silverado 2500 HD | LS |
| 2002-2006 | Chevrolet | Silverado 2500 HD | LT |
| 2004-2006 | Chevrolet | Silverado 2500 HD | WT |
| 2011-2026 | Chevrolet | Silverado 2500 HD | LTZ |
| 2011-2026 | Chevrolet | Silverado 2500 HD | WT |
| 2011-2026 | Chevrolet | Silverado 2500 HD | LT |
| 2015-2026 | Chevrolet | Silverado 2500 HD | High Country |
| 2021-2026 | Chevrolet | Silverado 2500 HD | Custom |
| 2024-2026 | Chevrolet | Silverado 2500 HD | ZR2 |
| 2007 | Chevrolet | Silverado 2500 HD Classic | LT |
| 2007 | Chevrolet | Silverado 2500 HD Classic | WT |
| 2007 | Chevrolet | Silverado 2500 HD Classic | LS |
| 2002-2005 | Chevrolet | Silverado 3500 | Base |
| 2002-2006 | Chevrolet | Silverado 3500 | LS |
| 2002-2006 | Chevrolet | Silverado 3500 | LT |
| 2004 | Chevrolet | Silverado 3500 | WT |
| 2006 | Chevrolet | Silverado 3500 | WT |
| 2007 | Chevrolet | Silverado 3500 Classic | LS |
| 2007 | Chevrolet | Silverado 3500 Classic | LT |
| 2007 | Chevrolet | Silverado 3500 Classic | WT |
…and 246 additional fitments. Contact us to confirm yours.
Other popular Royal Purple products customers consider together:
Royal Purple engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full Royal Purple lineup with fast shipping and expert fitment support — order with confidence.
Experience unparalleled protection for your heavy-duty diesel engine with Royal Purple Duralec Super Diesel 15W-40 CK-4 Motor Oil. This 1-quart bottle delivers advanced synthetic lubrication specifically formulated to meet the rigorous demands of modern diesel engines. Duralec CK-4 is engineered to provide exceptional wear protection, reduce soot-induced viscosity increase, and control oxidation, ensuring optimal engine performance and extended component life even under severe operating conditions.
Whether you drive a BMW 3 Series (1986-1991) or a BMW 5 Series (1989-1990) with a diesel conversion, this 15W-40 oil is designed to enhance durability and efficiency. Its robust formulation is ideal for both on-highway and off-highway diesel applications, offering peace of mind and reliable performance. Find your Royal Purple Duralec Super Diesel oil at GGCRACING.
| Years | Make | Model | Trim |
|---|---|---|---|
| 1994-2001 | AM General | Hummer | Base |
| 1996-1997 | Acura | SLX | Base |
| 1996-1999 | Acura | SLX | Premium |
| 1997-1998 | Aston Martin | DB7 | Base |
| 1997-1998 | Aston Martin | DB7 | Volante |
| 2000-2002 | Aston Martin | DB7 | Vantage |
| 2000-2002 | Aston Martin | DB7 | Vantage Volante |
| 1991-1998 | BMW | 318i | Base |
| 1991-1997 | BMW | 318is | Base |
| 1995-1999 | BMW | 318ti | Base |
| 1986-1988 | BMW | 325 | Base |
| 1986-1987 | BMW | 325e | Base |
| 1986-1987 | BMW | 325es | Base |
| 1987-1995 | BMW | 325i | Base |
| 1988-1991 | BMW | 325iX | Base |
| 1987-1995 | BMW | 325is | Base |
| 1996-1997 | BMW | 328i | Base |
| 1996-1997 | BMW | 328is | Base |
| 1989-1995 | BMW | 525i | Base |
| 1993 | BMW | 525iT | Base |
| 1994-1995 | BMW | 530i | Base |
| 1989-1993 | BMW | 535i | Base |
| 1994-1995 | BMW | 540i | Base |
| 1988-1991 | BMW | M3 | Base |
| 1995 | BMW | M3 | Lightweight |
| 1995-1998 | BMW | M3 | Base |
| 1997 | Chevrolet | C3500 | Base |
| 1997-1998 | Chevrolet | C3500 | Cheyenne |
| 1997-1998 | Chevrolet | C3500 | Silverado |
| 1999-2000 | Chevrolet | C3500 | Base |
| 1999-2000 | Chevrolet | C3500 | LS |
| 1996-2002 | Chevrolet | Express 2500 | LS |
| 1997-2002 | Chevrolet | Express 2500 | Base |
| 2010-2016 | Chevrolet | Express 2500 | Base |
| 1996-2002 | Chevrolet | Express 3500 | Base |
| 1996-2002 | Chevrolet | Express 3500 | LS |
| 2010-2016 | Chevrolet | Express 3500 | Base |
| 2011-2016 | Chevrolet | Express 3500 | LS |
| 2011-2016 | Chevrolet | Express 3500 | LT |
| 2002-2005 | Chevrolet | Silverado 2500 HD | Base |
| 2002-2006 | Chevrolet | Silverado 2500 HD | LS |
| 2002-2006 | Chevrolet | Silverado 2500 HD | LT |
| 2004-2006 | Chevrolet | Silverado 2500 HD | WT |
| 2011-2026 | Chevrolet | Silverado 2500 HD | LTZ |
| 2011-2026 | Chevrolet | Silverado 2500 HD | WT |
| 2011-2026 | Chevrolet | Silverado 2500 HD | LT |
| 2015-2026 | Chevrolet | Silverado 2500 HD | High Country |
| 2021-2026 | Chevrolet | Silverado 2500 HD | Custom |
| 2024-2026 | Chevrolet | Silverado 2500 HD | ZR2 |
| 2007 | Chevrolet | Silverado 2500 HD Classic | LT |
| 2007 | Chevrolet | Silverado 2500 HD Classic | WT |
| 2007 | Chevrolet | Silverado 2500 HD Classic | LS |
| 2002-2005 | Chevrolet | Silverado 3500 | Base |
| 2002-2006 | Chevrolet | Silverado 3500 | LS |
| 2002-2006 | Chevrolet | Silverado 3500 | LT |
| 2004 | Chevrolet | Silverado 3500 | WT |
| 2006 | Chevrolet | Silverado 3500 | WT |
| 2007 | Chevrolet | Silverado 3500 Classic | LS |
| 2007 | Chevrolet | Silverado 3500 Classic | LT |
| 2007 | Chevrolet | Silverado 3500 Classic | WT |
…and 246 additional fitments. Contact us to confirm yours.
Other popular Royal Purple products customers consider together: