Shell Clavus Oils are high quality, hydrotreated naphthenic mineral oils without additives. Specific selection of the base oil gives a range of products specially suited for the efficient lubrication of refrigerator compressors. Shell Clavus is designed for the lubrication of compressors with ammonia (R717) as refrigerant.

Shell Clavus Oil S 68 is specifically formulated to meet the demanding needs of rotary screw compressors used in commercial ammonia refrigeration systems. Note: Shell Clavus Oil S 68 is NOT recommended for use with Freon or HFC refrigerants such as R-134a and is NOT recommended for use in breathing air compressors.

Shell Clavus SD 22-12 is recommended for the lubrication of open, semi-open and hermetic compressors in domestic, commercial and industrial refrigeration systems with halogenated hydrocarbons (CFC, HCFC).

A high-performance universal alkylated benzene refrigeration oil suitable for reciprocating, centrifugal and rotary compressors using R22 or R717 down to evaporator temperatures of …

壳牌奇伟士G冷冻油 (Clavus G)是经氢化处理的不含添加剂的优质环烷烃矿物油，是由精心选择的基础油及先进的加氢精制技术生产出来的特别适合于冷冻压缩机润滑的冷冻机油。

Shell Clavus R is a high-tech synthetic refrigerator oil based on polyol ester fluids. Shell Clavus R has excellent thermal and oxidation stability. This results in a high performance level of the oil over a long period of time.

Shell Refrigeration Oil S4 FR-V 32 & 68 冷凍油 (舊產品名:Shell Clavus Oil AB) 採用烷基苯基礎油調配而成的合成冷凍油。 它是一種可以滿足大多數製冷壓縮機的潤滑要求的通用潤滑油，並可相容除HFC之外的所有常用冷媒。

Shell Clavus AB is designed for application with ammonia (R717) where it offers an excellent performance, even under high temperatures or below -33°C evaporation temperature. Shell Clavus AB is also fully suitable for use with halogenated refrigerants (CFC, HCFC).

Shell Clavus G is designed for the lubrication of compressors using halogenated hydrocarbons as the refrigerant (R12, R22). It is also suitable for use with hydrocarbon refrigerants (e.g. R600a). For all refrigeration and air-conditioning applications: domestic, commercial and industrial systems with high, moderate or low evaporation temperatures.