Regarding refrigerants for commercial vehicles, there is a European trend coming in which you will find the WOLF brand with G refrigerants that meet the regulations of European manufacturers and all 50/50 glycol/water, ready to use: G11 inorganic acids (IAT), G12+ organic acids (OAT), G12++ organic acids and silicates (SI-OAT), G13 hybrid organic acid inhibitor (HOAT).