Heavy-duty engine coolant is formulated using "organic-inorganic composite corrosion inhibition technology" based on the special structure of heavy-duty engines, effectively preventing cavitation corrosion. It also possesses multiple functions such as antifreeze, anti-corrosion, anti-boiling, and anti-scaling, and is primarily used in heavy-duty engines for heavy-load loading and transportation vehicles. This product possesses the following technical features: 1. Excellent pour point depression effect, suitable for use in severe cold environments down to -50℃; 2. Effectively prevents cavitation corrosion, offering excellent corrosion inhibition for ferrous, non-ferrous, and amphoteric metals; 3. Features multiple functions such as anti-freezing, anti-boiling, and anti-scaling.