Valvoline 861526 G40 Phosphate and Nitrite Free Concentrate Antifreeze/Coolant 1 Gallon

Valvoline G40 Antifreeze/Coolant is a premium concentrate formula designed for heavy-duty diesel engines and industrial applications requiring phosphate-free and nitrite-free protection. This advanced coolant provides superior corrosion protection for all cooling system metals including aluminum, cast iron, steel, copper, brass, and solder.

Key Features:

• Phosphate-free and nitrite-free formulation prevents scaling and deposit buildup
• Compatible with all ethylene glycol-based coolants for easy top-off
• Extended service life reduces maintenance costs and downtime
• Provides excellent freeze and boil-over protection when properly diluted
• Contains organic acid technology (OAT) corrosion inhibitors
• Meets or exceeds ASTM D3306 and D4985 specifications
• Safe for use in aluminum radiators and heater cores

This 1-gallon concentrate must be diluted with distilled water before use. For maximum protection, mix with equal parts water for freeze protection to -34°F and boil-over protection to 265°F. The G40 formula is ideal for fleets and operators seeking a low-maintenance coolant solution that provides reliable year-round protection.