Sunoco 9973-004 (9973) ELC Extra 50/50 Prediluted Extended Life Coolant/Antifreeze – 1 Gallon. Size: 1 U.S. Gallon (3.78 Liters) per container 50/50 Prediluted(Do Not Add Water). Service Life Up to 600,000 miles / 12,000 hours / 6 years in heavy-duty diesel applications.
