Shell Rimula R4X 15W-40 – Heavy-Duty Diesel Engine Oil (API CI-4)
Engineered for rigorous performance, Shell Rimula R4X 15W-40 uses Dynamic Protection technology, an advanced additive system that adapts to your engine’s needs to deliver:
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Acid & Corrosion Control: Neutralizes harmful acids from combustion, safeguarding engine bearings and metal components.
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Enhanced Wear Protection: Builds strong protective film to reduce friction in piston rings, cylinder liners, and valve trains—achieving 30% better wear protection in the Mack T-10 test compared to API CI-4 standards.
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Superior Deposit Control: Resists oxidation and keeps engines significantly cleaner—up to 50% less sludge.
This oil meets a wide range of major specifications, including API CI-4, ACEA E7/E5/E3, Global DHD-1, and OEM approvals like MB-228.3, MAN M3275-1, Cummins CES 20078-72, DDC 93K215, and more.
Designed for both on-highway and off-highway heavy-duty diesel engines, especially those using Exhaust Gas Recirculation (EGR), Rimula R4X 15W-40 is built to deliver long oil-drain intervals, lower maintenance, and robust engine reliability under extreme working conditions
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