Premium Universal ESTER Oil with Dye. Includes Moisture Guard Technology. With Universal ESTER, no need to stock multiple grades of oil. eBoost is a performance enhancing supplement developed by UView to boost the performance of lubricants When used in an air conditioning system eBoost will increase the lubricity and anti-wear properties of the oil and rejuvenate rubber seals and O-rings, thereby helping extend the life and performance of the A/C system and compressor. The eBoost supplement advantage: . Condition seals and prevents leaks. Reduce compressor temperature/friction. Quiets noisy compressors. Reduce fuel consumption and emissions Moisture Guard Technology is highly effective at removing and inhibited moisture. Moisture Guard prolongs the overall shelf life of products and decreases the ability of Ester Oils to form acids, which can harm A/C systems.