FIELD: internal combustion engine. SUBSTANCE: inhibited heat carrier has, wt.-%: by-side glycols of ethylene glycol production 25-65; sodium tetraborate 0.1-0.15; high-module water glass with silicate modules 2.8 0.8-1.2; benzotriazole 0.03-0.05; sodium or calcium borogluconate 0.05; frothing agent 0.005-0.05, and water - the rest. By-side glycols of ethylene glycol production have the following composition, wt.-%: ethylene glycol 70-90; diethylene glycol 0.5-5.0; triethylene glycol 0.1-1.0, and water - the rest. EFFECT: enhanced quality of heat carrier. 2 tbl
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