Oasis Manufacturing has just released their all-new 3000 series 12vdc Air Compressors with an oil blow-by control system and many new features. This revolutionary design extends oil-servicing intervals to fifty hours. The new 3000 series offers an impermeable sealed lubrication system, virtually eliminating outside contaminants and oil emissions. The Anti Blow By Design utilizes special oil control piston rings, which minimize crankcase lubrication discharge into compressed air supply.