与传统矿物油相比，使用美孚拉力士 (Mobil Rarus) 800 系列润滑油能使压缩机更清洁，积垢更少，可延长维护周期。 本系列产品的 氧化与热稳定性极佳，不但能可靠延长使用寿命，同时可以控制油泥和积垢的形成。它们杰出的抗磨和防腐蚀保护性可以提高设备 寿命和性能。 

特性	优点及潜在效益
高性能合成基础油	性能显著优于矿物油 提高安全性
低的灰分与积碳的形成	提高阀门性能 减少排放管线积炭 降低排气系统失火与爆炸的可能性 提高压缩机性能
杰出的氧化与热稳定性	油品寿命更长 延长过滤器寿命 维护费用更低
高承载能力	减少活塞环、汽缸、轴承和齿轮磨损
优异的水分离性	减少油品被携带到系统的下游设备中 减少油泥在曲轴箱和排放管线中形成 降低聚集式过滤器堵塞 降低乳状物形成可能性
有效的锈蚀和防腐蚀保护	提高阀门保护性，减少活塞环与汽缸磨损

美孚拉力士 (Mobil Rarus) 800 系列润滑油推荐用于单级和多级空压机，但不建议用于使用在呼吸空气设备中的空压机。它们对排气温度高达 200ºC 的连续高温运行特别有效，对于往复式和回转式两类空压机都适用，其中较低粘度等级主要用于回转式压缩机。拉力士 (Rarus) 800 系列油品推荐用于曾出现过度机油降解、不良阀门性能或出现积垢的机械。它们与压缩机所用的所有金属相容，还可与矿物油基润滑油相容，但两者的混合使用将削弱油品性能。美孚拉力士 (Mobil Rarus) 800 系列润滑油可与氟化烃、硅树脂、氟硅氧烷、多硫化物、氟橡胶、聚四氟乙烯和高晴丁晴橡胶（丙烯腈含量低于 30%）以及天然橡胶和丁基合成橡胶、氯丁橡胶、聚丙烯酸盐、苯乙烯/丁二烯和氯磺化聚乙烯的密封材料相容。

抗机油漆不会受到美孚拉力士 (Mobil Rarus) 800 系列油品的影响，但建议不要用于真漆、清漆、聚���乙烯和丙烯酸漆的设备。

美孚拉力士 (Mobil Rarus) 800 系列润滑油在以下空压机类型上的性能表现佳：

• 可用于所有空压机类型，但特别推荐用于往复式空压机
• 在严苛条件下运行的空压机
• 使用矿物基润滑油时曾出现过度机油降解的多级空压机
• 可以用于汽缸和曲轴箱的润滑
• 具有严苛要求的齿轮和轴承的压缩机系统
• 固定式和移动式压缩机

以下部分为英文原版资料

The Mobil Rarus 800 Series is a line of supreme performance air compressor lubricants primarily intended for the lubrication of severe duty reciprocating air compressors but are not recommended for air compressors used in breathing air applications. They are engineered to meet or exceed the stringent requirements of the major compressor manufacturers. They are formulated with design-specific synthetic base-oils and a high technology additive system that assures exceptional equipment protection and reliability for compressors operating under conditions where mineral-oil based products are not meeting expectations. Mobil Rarus 800 Series provide excellent wear protection and outstanding resistance to oxidation and thermal degradation, greatly superior to mineral oils. Their unique formulation provides the ability to help reduce maintenance costs through minimising equipment problems and downstream deposits and carryover.

Mobil Rarus 800 Series lubricants significantly reduce the potential for fires and explosions, compared to mineral oil-based products. They exhibit a virtual absence of deposit formation and higher autogenous ignition temperatures improving both performance and safety. Their exceptional water separating characteristics reduce problems with emulsion formation and carryover into downstream piping and equipment. They are recommended or approved by many of the leading compressor manufacturers.

The use of the Mobil Rarus 800 Series oils can result in cleaner compressors and lower deposits compared to conventional mineral oils, resulting in longer running periods between maintenance intervals. Their excellent oxidation and thermal stability safely allow extended life capability while controlling sludge and deposit formation. They possess outstanding anti-wear and corrosion protection, which enhances equipment life and performance.

Features	Advantages and Potential Benefits
High Performance Synthetic Base Stocks	Significant performance capabilities relative to mineral oils Improved safety
Low Ash and Carbon Formation	Improved valve performance Reduced deposits in discharge lines Reduced potential for fires and explosions in discharge systems Improved compressor performance
Outstanding Oxidation and Thermal Stability	Longer oil life Improved filter life Lower maintenance costs
High Load-carrying ability	Reduced wear of rings, cylinders, bearings and gears
Excellent Water Separability	Less carryover to downstream equipment Reduced sludge formation in crankcases and discharge lines Reduced blockage of coalescers Less potential for emulsion formation
Effective Rust and Corrosion Protection	Improved protection of valves and reduced wear of rings and cylinders

The Mobil Rarus 800 Series oils are recommended for single and multistage air compressors, but are not recommended for air compressors used in breathing air applications. They are particularly effective for continuous high temperature operation with discharge temperatures up to 200ºC. They are suitable for reciprocating and rotary type machines with the lower viscosity grades mainly used in rotary compressors. Rarus 800 Series oils are recommended for units with a history of excess oil degradation, poor valve performance or deposit formation. They are compatible with all metals used in compressor construction and with mineral oil-based lubricants but admixture will detract from their performance capabilities. Mobil Rarus 800 Series oils are compatible with seals made from fluorinated hydrocarbon, silicone, fluorosilicone, polysulfide, Viton, Teflon, and high nitrile Buna N NBR (above 36% acrylonitrile) materials. Materials not recommended include low nitrile Bune N NBR (below 30% acrylonitrile), natural and butyl rubbers, Neoprene, polyacrylate, styrene/butadiene and chlorosulfonated polyethylene.

Oil resistant paints are not affected by Mobil Rarus 800 Series, but lacquer, varnish, pvc and acrylic paints are not recommended.

The following types of compressor applications have shown excellent performance with the Mobil Rarus 800 Series oils:

• All types of air compressors but specifically recommended for reciprocating air compressor
• Units operating under severe conditions
• Multistage units with a history of excessive oil degradation from mineral oil-based products
• They can be used for cylinder and crankcase lubrication
• Compressor systems with critical gears and bearings
• Compressors used in stationary and mobile applications

Mobil Rarus 800 Series	827	829
ISO Viscosity Grade	100	150
Viscosity, ASTM D 445
cSt @ 40ºC	107	158
cSt @ 100ºC	10.1	13.2
Viscosity Index, ASTM D 2270	66	70
Total Acid Number, ASTM D 974, mgKOH/g	0.15	0.14
Copper Strip Corrosion, ASTM D130, 3 h @ 121ºC	1B	1B
Rust Characteristics Proc A, ASTM D 665	Pass	Pass
Foam Seq I, ASTM D 892	10/0	50/0
Pour Point, ASTM D 97, ºC	-36	-40
Flash Point, ºC, ASTM D 92	270	270