Royal Purple Duralec Super Diesel 15W-40 Motor Oil - 5 Gallons

Royal Purple® Duralec® Super™ Diesel Motor Oil is a high-performance synthetic engine oil designed for modern diesel engines requiring emissions-compliant lubrication. Engineered for DPFs, catalytic converters, EGR, and SCR systems, it works seamlessly with ultra-low sulfur diesel fuels in North America and Europe.

Formulated to maximize component life, extend drain intervals, and enhance fuel efficiency, Duralec Super offers exceptional high-temperature stability and low-temperature pumpability, reducing cold-start wear. Its advanced additive technology provides superior wear protection, oxidation resistance, and cleanliness, ensuring long-term reliability and performance.

Performance Benefits:

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• Outstanding wear protection for extended engine life
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• Improved fuel economy and reduced emissions
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• Superior corrosion resistance
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• Enhanced high-temperature breakdown resistance
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• Keeps engines exceptionally clean
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• OEM-approved and API-licensed CK-4 diesel motor oil
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• Safe for all seals and emissions equipment
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Available Grades & Specifications:

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• SAE 5W-40 | SAE 10W-30 | SAE 15W-40
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• Meets API CK-4, CJ-4, CI-4 Plus, CI-4 and multiple OEM specifications, including Cummins, Ford, Daimler, Volvo, Detroit Diesel, CAT, Renault, JASO DH-2, and more.
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Designed for on-road, off-road, and heavy-duty diesel applications, Royal Purple® Duralec® Super™ delivers unmatched performance, protection, and efficiency where it matters most.