Cat 339-3768 Diesel Engine Antifreeze / Coolant - Purple (1 Gallon)

Extended Drain Interval Provides up to 3,000 hours of protection when monitored with Cat S•O•S℠ fluid analysis, reducing maintenance downtime and increasing operational efficiency. Superior Corrosion & Pitting Protection Engineered with specially formulated inhibitors to protect all metal surfaces—especially aluminum components—from pitting, corrosion, and erosion. All-Application Compatibility Approved for use in all Cat equipment, commercial engines, and on-highway truck engines, making it a versatile choice for mixed fleets. Heavy-Duty, Pre-Diluted Convenience Supplied in a 1-gallon (4-liter) bottle, ready for dilution with ion-free water, allowing for tailored use while ensuring effective freeze and boil protection.