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.

15W-40 Gallon- 21405

Key Benefits:

• Superior protection under high-temp, high-load diesel conditions

• Excellent soot control and low wear under extreme pressures

• Strong thermal and oxidative stability for extended service intervals

• Enhanced corrosion protection for wet-sleeve and older diesels

• Fast cold-start performance for hard-start environments

Specifications:

• SAE Grade: 15W‑40

• Size: 1 Quart

• Base: Ester & Polyalphaolefin (PAO)

• Meets/Exceeds: API CK‑4, CJ‑4, CI‑4+, CI‑4, ACEA E7

• Recommended for modern turbo diesels and older mechanical injection engines

Fitment / Recommended Use:

Perfect for:

• Heavy-duty turbocharged diesel engines (trucks, tractors, construction, marine)

• High-load, high-hour fleets and off-road machinery

• Engines requiring CK‑4 or CJ‑4 protection

• Cold-climate starts with enhanced 15W cold flow

Why Buy From Elite Race Fab?

• Diesel-focused, race-proven oil formulations

• Expert support and fast, reliable shipping

• No fluff – just real-world protections for serious engines