TSI Supercool 25145 PAO 68 Synthetic Lubricant Plus U/V Dye - 32-Ounces - Case of 6 is a synthetic lubricant specially formulated for electric hybrid A/C compressors. This compressor oil is non-hydroscopic and does not absorb moisture. It is compatible with all A/C lubricants and can be used with R134a, R12, R22, R401b, R401c, R404a, R404c, R407c, R409a, R409b, R413a, R500 and R507a. Supercool customers receive industry's leading technology in all fluids with lubricants and UV dye's formulated to meet or exceed OEM performance specifications. In addition, all lubricants are top-off compatible with their corresponding OEM and aftermarket equivalents. Designed for real-world operating conditions, they provide an unsurpassed level of service, performance, protection, and fluid life.