Royal Purple Duralec Super Diesel 15W40 CK-4 Motor Oil 5 Gallon
The Royal Purple 05154 Duralec Super Diesel 15W40 CK-4 Motor Oil is the best high performance synthetic diesel engine oil for 2007 and newer heavy duty applications requiring emissions compliant lubrication. Formulated with premium synthetic base stocks and Royal Purple proprietary additive technology, this oil maximizes component life, extends drain intervals, and improves fuel economy while providing excellent high temperature breakdown resistance and low temperature pumpability to minimize cold start wear. Ideal for over the road trucking, agriculture, construction, mining, and any diesel engine using ultra low sulfur fuel in North America or Europe.
Key Features
- Emissions Compliant: Meets API CK-4 requirements for 2007 and 2010 emissions equipment including DPF, catalytic converters, EGR, and SCR systems
- High Temperature Stability: Superior resistance to thermal breakdown for extended protection under heavy loads
- Low Temperature Pumpability: Excellent cold flow properties reduce startup wear in winter conditions
- Extended Drain Capability: Advanced formulation allows longer service intervals when used with oil analysis
- 5 Gallon Pail: Convenient bulk size for fleet maintenance, shops, or frequent oil changes
- Royal Purple Quality: Trusted synthetic performance for maximum engine protection and efficiency
Specifications
| Specification | Detail |
|---|---|
| Part Number | 05154 |
| Viscosity | 15W40 |
| API Rating | CK-4 |
| Size | 5 Gallon Pail |
| Base Oil | Premium Synthetic |
| Applications | Heavy Duty Diesel Engines Requiring CK-4 15W40 |
| Country of Origin | United States |
| Warranty | Limited (Royal Purple) |
| Shipping Weight | Approx. 38 to 40 lbs |
What's Included
- 5 Gallon Pail of Duralec Super Diesel 15W40 CK-4 Motor Oil
Product Notes
- 5 gallon pail provides convenient bulk supply for multiple oil changes or fleet use
- Specifically formulated for modern diesel engines with emissions aftertreatment systems
- Excellent choice for severe duty applications including towing, heavy hauling, and off road use
Installation Notes
- Estimated time: Standard oil change procedure
- Drain old oil, replace filter, fill with Duralec Super Diesel 15W40, check level
- Professional oil change recommended for proper disposal and system bleeding if applicable
This Part Fits
| Application | Notes |
|---|---|
| Heavy Duty Diesel Engines | 2007 and Newer Models Requiring API CK-4 15W40 (Cummins, Power Stroke, Duramax, etc.) |
| Common | Over The Road Trucking, Agriculture, Construction, Mining, Fleet Vehicles |
Why Choose Royal Purple Duralec Super Diesel 15W40?
- Advanced synthetic formulation provides superior protection and extended drain intervals
- Excellent high temperature stability and low temperature flow for all season performance
- Limited warranty trusted heavy duty diesel oil from Royal Purple
Frequently Asked Questions
-
Q: Is this oil suitable for my 2020 Ram 2500 Cummins?
A: Yes, Royal Purple Duralec Super Diesel 15W40 meets API CK-4 specifications for modern diesel engines. -
Q: Can I extend oil change intervals?
A: Yes, the premium synthetic formulation often allows extended drains when used with oil analysis. -
Q: Is the 5 gallon pail easy to pour?
A: Yes, the pail includes a built-in handle and pour spout for clean dispensing. -
Q: What is the warranty?
A: Covered by Royal Purple limited warranty built for heavy duty applications.
Shipping & Handling
- Method: UPS / FedEx Ground (Hazardous Material Oil)
- Availability: In stock ships same or next business day
- Packaging: Secure protective packaging
- Weight: Approx. 38 to 40 lbs
Engine
Engine parts and engine bay upgrades for Dodge, Jeep, RAM, Chrysler, Chevrolet, Ford, Toyota, Nissan, Subaru, and Honda vehicles are stocked at Black Ops Auto Works. Shop oil catch cans, supercharger pulleys, thermostats, radiators, cooling parts, throttle bodies, intake manifolds, headers, ignition coils, spark plugs, sensors, gaskets, fuel pumps, valve covers, engine covers, billet cap covers, and full engine bay dress-up parts for HEMI, Hellcat, Trackhawk, Redeye, Demon, Scat Pack, RAM TRX, LS, LT, Coyote, EcoBoost, K-Series, and 2JZ builds. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 14,298 engine SKUs across performance, cooling, oil control, ignition, and appearance categories. What This Category Covers The Engine collection combines OEM-replacement engine service parts with performance aftermarket upgrades for supercharged, turbocharged, and naturally aspirated builds...
View Engine Products
Motor Oil
Motor oil for cars, trucks, SUVs, motorcycles, and diesel platforms is stocked at Black Ops Auto Works. Shop full synthetic, high mileage, break-in, racing, and diesel-rated motor oils in quarts, gallons, 5 gallon pails, and bulk bag-in-box sizes for daily drivers, boosted performance builds, and fresh engine break-in. Every product is filterable by viscosity, formulation, and package size so the correct oil ships the first time. Black Ops Auto Works carries 311 motor oil SKUs across synthetic, diesel, racing, and break-in formulations. What This Category Covers The Motor Oil collection spans daily-driver synthetic oils, diesel-rated heavy duty oils, motorcycle oils, dedicated break-in oil for fresh engine builds, and racing oils formulated for high RPM and high heat. Viscosities range from 0W20 and 5W20 for modern fuel-efficient engines up to 20W50 and straight SAE 50 for older, high performance, and track applications. Categories Included Full synthetic motor oil, synthetic bl...
View Motor Oil Products
Oil Systems
Oil system parts for supercharged HEMI, LS and LT platforms, diesel trucks, and daily drivers are stocked at Black Ops Auto Works. Shop oil catch cans, air oil separators, oil filters, oil pans, oil pumps, oil pickups, dipsticks, drain plugs, and motor oils for Hellcat, Redeye, Demon, Jeep Trackhawk, Ram TRX, Corvette, Camaro, CTS-V, Mustang, F-150, and Silverado applications. Every product is filterable by year, make, model, trim, engine, and drivetrain so the correct part ships the first time. Black Ops Auto Works carries 1,432 oil system SKUs across catch cans, filtration, and service hardware. What This Category Covers Oil system parts manage crankcase ventilation, filtration, and lubrication delivery throughout the engine. This collection spans oil catch cans, oil separators, air oil separators, oil filters, oil pans, oil pumps, oil pickups, dipsticks, drain plugs, oil baffles, and motor oils for street, track, towing, and high horsepower applications. Crankcase Ventilation...
View Oil Systems Products


