Mobil Rarus 400 Series is a premium ashless air compressor lubricant designed to meet the stringent requirements of most air compressor manufacturers. This series of products can significantly reduce equipment failure, downstream fouling and oil carry-out, provide excellent anti-wear protection and reduce maintenance costs. High FZG series of the Mobil Rarus 400 series,Excellent lubricating performance for gear and bearing compressor systems, excellent oil choice for crankcases and cylinders.