Red Line 21404 15W‑40 Full Synthetic Diesel Motor Oil – 1 Quart
High-Performance Ester/PAO Blend – Provided by Elite Race Fab
Red Line 21404 is the quart-size option of our robust 15W‑40 formulation designed for diesel engines. Blended with premium Ester/PAO base oils and fortified with advanced additives, it protects high-compression engines from wear, heat, soot, and corrosion. Ideal for heavy-duty, off-road, marine, and turbocharged diesel applications.
Key Benefits:
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Superior protection under high-temp, high-load diesel conditions
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Excellent soot control and low wear under extreme pressures
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Strong thermal and oxidative stability for extended service intervals
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Enhanced corrosion protection for wet-sleeve and older diesels
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Fast cold-start performance for hard-start environments
Specifications:
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SAE Grade: 15W‑40
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Size: 1 Quart
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Base: Ester & Polyalphaolefin (PAO)
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Meets/Exceeds: API CK‑4, CJ‑4, CI‑4+, CI‑4, ACEA E7
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Recommended for modern turbo diesels and older mechanical injection engines
Fitment / Recommended Use:
Perfect for:
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Heavy-duty turbocharged diesel engines (trucks, tractors, construction, marine)
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High-load, high-hour fleets and off-road machinery
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Engines requiring CK‑4 or CJ‑4 protection
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Cold-climate starts with enhanced 15W cold flow
Why Buy From Elite Race Fab?
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Diesel-focused, race-proven oil formulations
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Expert support and fast, reliable shipping
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No fluff – just real-world protections for serious engines