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DIAMOND RX 5W-40

DIAMOND RX 5W-40 is a fully synthetic motor oil developed with next-generation additive chemistry and ultra-pure synthetic base oils, offering a protective shield as strong as a diamond against wear, heat, and deposits. What truly sets it apart is its ability to uniquely balance powerful engine performance with maximum protection for advanced emission systems—such as DPFs, GPFs, and catalytic converters—thanks to its ACEA C4 and OEM-approved Low SAPS formulation. With flawless cold-start lubrication, reliable high-temperature stability, and resistance to sludge buildup, Diamond RX 5W-40 delivers ideal performance in stop-and-go city traffic, high-speed highway driving, and harsh climatic conditions. With its extended oil change interval capability and proven efficiency, it represents the perfect balance of performance, protection, and environmental responsibility.

Thanks to its Low SAPS formulation, it can be safely used in engines equipped with advanced aftertreatment systems such as Diesel Particulate Filters (DPF), Gasoline Particulate Filters (GPF), and catalytic converters. It is suitable for engines requiring the Renault RN0720 approval, as well as those requiring the Mercedes-Benz (MB 226.51 / 229.51) and FIAT 9.55535-S4 specifications. It delivers superior performance across a wide operating range—including stop-and-go city traffic, long-distance driving, and harsh climatic conditions—in passenger cars, SUVs, and light commercial vehicles.

ACEA C4; Renault RN0720; MB-Approval 226.51/229.51; FIAT 9.55535-S4

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DIAMOND RX 5W-40

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