Premium Universal PAG Oil with Dye. Includes Moisture Guard Technology. With Universal PAG oil, no need to stock multiple grades of oil. eBoost is a proprietary performance enhancing supplement developed by UView to boost the performance of the A/C system and compressor 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 prevent leaks. Reduce compressor temperature/friction. Quiets noisy compressors. Reduce fuel consumption and emissions Moisture Guard Technology is highly effective at removing and inhibiting 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.