EMAX Smart Oil is a high-performance synthetic lubricant designed for piston air compressors to ensure maximum reliability, longevity, and efficiency. Made in the USA, this 30W oil is required to maintain your EMAX extended warranty coverage and should be used after the initial break-in period with standard oil. The advanced synthetic formula reduces friction and wear, lowers operating temperatures, and provides quieter performance while improving overall pump efficiency. Regular use helps extend the life of your compressor by up to 2X and supports higher horsepower and CFM output. Patented and engineered specifically for EMAX piston compressors, this oil ensures your equipment runs smoothly and reliably for years of industrial, shop, or professional use.