Mobil Rarus 427 is a premium performance ashless air compressor lubricant that is designed to meet the stringent requirements of major compressor manufacturers. It is formulated with high quality mineral base-oils and a high performance additive system that provides exceptional equipment protection and reliability for compressors operating under mild to severe conditions. Mobil Rarus 427 provides excellent wear protection and the ability to reduce maintenance costs by minimizing downstream deposits and carryover. It also has excellent oxidation and thermal stability, which safely allows extended life capability while controlling sludge and deposit formation. Mobil Rarus 427 is recommended or approved by many of the leading compressor manufacturers. It is an excellent choice for a wide variety of air compressor applications, including: Reciprocating compressors Rotary compressors Axial and centrifugal compressors Compressors with critical gears and bearings Compressors in fixed and M