• Low TBN Calcium Sulfurized Alkylphenate
    Low TBN Calcium Sulfurized Alkylphenate (TBN 30–80 mgKOH/g, Ca 2–8%) is a calcium phenate detergent uniquely carrying a built-in phenolic antioxidant (phenol –OH radical scavenger) and secondary
  • Medium TBN Calcium Sulfurized Alkylphenate
    Medium TBN Calcium Sulfurized Alkylphenate (C₁₅H₂₃O₂S₂Ca, TBN 120–180 mgKOH/g, Ca 3–9%) is the primary phenate co-detergent for heavy-duty diesel engine oils (API CK-4/FA-4, ACEA E6/E9), marine trunk
  • High TBN Calcium Sulfurized Alkylphenate
    High TBN Calcium Sulfurized Alkylphenate is a premium engine oil detergent additive designed to deliver strong acid neutralization, excellent detergency, and superior oxidation resistance.

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