Did you know that API SP engine oils undergo an entire suite of Sequence Tests before they can carry that specification label? Each test targets a different challenge—like piston deposits (Sequence IIIH), valve train wear (IVB), LSPI (IX), sludge (VH), timing chain wear (X), or fuel economy (VIE/VIF). Together, they confirm the oil’s ability to combat wear, resist oxidation, keep engines clean, and improve efficiency across demanding real-world conditions. This multi-test gauntlet ensures modern oils meet the needs of both new and older engines.
At Valorem Chemicals, we support formulators with cutting-edge additives to help them excel in every test on the road to API SP approval.
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