... add a small amount by adding ten thousandth, manganese content is not super into 18 mg/l, gasoline octane 2-3 ( ... 4 Easy to dissolved, at room temperature it can be dissolved in petrol without soluble in water. 5 Stable, the air is not biodegradable ... , the evaporation loss is not easy. 6 Non-toxic, do not cause environmental pollution. 7 The low melting point, is not easy to prove that facilitate use ...