Nulon Motorcycle Coolant Premix is a biodegradable, low toxicity, propylene glycol-based premixed engine coolant. Formulated with advanced Organic Acid Technology (OAT) and 50% distilled water, it is free from nitrites, silicates, borates and phosphates and provides optimum anti-freeze/anti-boil engine protection. It is suitable for use in all motorcycle engines, especially those containing the latest magnesium alloy technology.