Yes, you can. All AMSOIL Antifreeze/Coolants are compatible with each other and with other coolants on the market. Whether you're switching from propylene glycol to ethylene glycol or vice versa, AMSOIL ensures compatibility. However, it's recommended to stick with one type to ensure consistent freeze and boil protection.

AMSOIL Antifreeze/Coolants feature a poly-organic acid formulation, free from inorganic acid salts or mineral salts found in green conventional antifreeze/coolants. This formulation reduces scaling issues commonly found in cooling systems.

Using distilled water is optimal. Many coolant-related problems arise from mixing coolant with low-quality water. Quality water is essential for maintaining your cooling system, regardless of the mix ratio chosen.

If environmental impact and safety concerns are paramount, opt for AMSOIL Propylene Glycol Antifreeze & Coolant. Its biodegradability and low toxicity make it a safer choice. For competitive pricing and performance, consider one of the ethylene glycol options.

AMSOIL Passenger Car/Light Truck Antifreeze & Coolant and Heavy-Duty Antifreeze & Coolant, like other ethylene glycol-based products, are hazardous if ingested. Prompt medical attention is crucial. While Propylene Glycol Antifreeze & Coolant is less toxic, ingestion should still be treated seriously.

For mixed fleets, consider Propylene Glycol Antifreeze & Coolant or Heavy-Duty Antifreeze & Coolant. All AMSOIL Antifreeze & Coolants can be used in non-heavy-duty applications, with a recommended drain interval of 150,000 miles or five years.