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Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
Authorized Brand Dealer
Fulfillment From Multiple U.S. Warehouses
Enthusiast Owned & Supported
Easy Financing Available!
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Royal Purple
Royal Purple Duralec Ultra 15W-40 CK-4 Heavy Duty Diesel Motor Oil - 5 Gallon Pail
This product will be available for sale in 2 weeks, but you can pre-order now to receive 10% discount!
Royal Purple Duralec Ultra 15W-40 is a premium heavy-duty engine oil engineered for diesel engines operating under high-load, high-stress conditions. Formulated to meet the rigorous API CK-4 service category, this oil provides superior protection against wear, oxidation, and deposit formation while maintaining excellent shear stability in modern emissions-controlled engines.
This 5-gallon pail is designed for professional maintenance, offering high-strength film protection to prevent metal-to-metal contact. Its advanced additive chemistry effectively manages soot to prevent oil thickening and abrasive wear, ensuring consistent performance throughout extended drain intervals.
- Viscosity Grade: 15W-40
- API Service Category: CK-4 (also covers CJ-4, CI-4 Plus, CI-4, and CH-4)
- Exceptional oxidation stability for high-temperature resistance
- Advanced soot dispersancy to maintain engine cleanliness
- Protects against valve train wear and piston ring sticking
- Volume: 5 Gallons / 18.9 Liters
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Atlus
1340 Cobb Dr, Unit 1, Eustis, FL 32736
352-234-4458
Mon – Fri: 8:30 am – 4:30 pm
Sat: 9:00 am – 2:00 pm
Sun: Closed
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Royal Purple Duralec Ultra 15W-40 CK-4 Heavy Duty Diesel Motor Oil - 5 Gallon Pail
This product will be available soon, but you can pre-order now to get on the list before others!
US Based Support - In Florida
30 Days Satisfaction Guarantee
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Royal Purple Duralec Ultra 15W-40 is a premium heavy-duty engine oil engineered for diesel engines operating under high-load, high-stress conditions. Formulated to meet the rigorous API CK-4 service category, this oil provides superior protection against wear, oxidation, and deposit formation while maintaining excellent shear stability in modern emissions-controlled engines.
This 5-gallon pail is designed for professional maintenance, offering high-strength film protection to prevent metal-to-metal contact. Its advanced additive chemistry effectively manages soot to prevent oil thickening and abrasive wear, ensuring consistent performance throughout extended drain intervals.
- Viscosity Grade: 15W-40
- API Service Category: CK-4 (also covers CJ-4, CI-4 Plus, CI-4, and CH-4)
- Exceptional oxidation stability for high-temperature resistance
- Advanced soot dispersancy to maintain engine cleanliness
- Protects against valve train wear and piston ring sticking
- Volume: 5 Gallons / 18.9 Liters
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