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A. Shell Corena S2 P 100 is for reciprocating (piston) air compressors in standard-life applications where ISO VG 100 mineral compressor oil is specified — typically higher-duty reciprocating compressors.
A. The 'P' designation indicates the reciprocating (Piston) compressor positioning in the Shell Corena range, distinguishing it from the rotary-screw and other Corena variants.
A. Shell Corena S2 P 100 is ISO VG 100 — the heavier mineral compressor oil viscosity for higher-duty reciprocating compressor service.
A. Shell Corena S2 P 100 meets ISO 6743-3 (compressor oil classification); DIN 51506 (industrial compressor oil specification); and DIN 51575.
A. Both are mineral-oil reciprocating compressor lubricants meeting ISO 6743-3 and DIN 51506. They differ in viscosity grade: Castrol Aircol CM 68 is ISO VG 68 for higher-temperature reciprocating service; Shell Corena S2 P 100 (this product) is ISO VG 100 for higher-duty reciprocating compressor service. Always select per the compressor manufacturer's specification.
A. No — Shell Corena S2 P is specifically positioned for reciprocating (piston) compressors. Rotary screw compressors require different Shell Corena variants (such as Corena S2 R or S3 R for screw compressor service). Always check the compressor manufacturer's lubricant specification.
A. API and ACEA are the universal lubricant performance standards every reputable oil meets. They are your baseline check — match the code your handbook specifies (e.g., API CI-4 or ACEA E7 for heavy-duty diesel) and the oil is technically suitable for your machine. Every oil on our site lists its API and ACEA classifications.
A. An OEM Specification is the lubricant requirement set by a vehicle or equipment manufacturer (e.g., MB 228.3, VW 504.00). When an oil lists the code, the oil manufacturer has developed and tested it to meet the criteria the equipment manufacturer requires. Match the code in your handbook and you have a lubricant engineered for your machine.
A. An OEM Approval means the oil has been formally tested and signed off by the equipment manufacturer and listed on their official approved-products register (e.g., MB-Approval 228.3). An Approval confirms the oil is recognised by the equipment manufacturer for service use in their machines.
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