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Shell 550026560 Corena S3 R 68, Compressor Oil - 209 Litre
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BG HCF Waterproof Sprayable Grease - 474ml - 498E
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Fortron Advanced Oil Guard, 325 ml - Pack of 30
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Technical Specification
PRODUCT NUMBER PRD00002591PRD00002592PRD0000259015D9ECPRD00002994
Density, 15°C 0.8620.8620.8580.8580.867
Flash Point (COC) 240240230230242
Kinematic Viscosity @40°C 6868466868
Pour Point -36-36-38-38-18
Colour L 0.5
Volume 202082020820
Viscosity Index 100100100100107
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Q 1. What applications is Shell Corena S3 R 68 designed for?

A. Shell Corena S3 R 68 is for higher-duty rotary sliding-vane and screw air compressors — typically larger or higher-temperature rotary screw compressors where the heavier ISO VG 68 viscosity is specified.

Q 2. What is the viscosity grade of Shell Corena S3 R 68?

A. Shell Corena S3 R 68 is ISO VG 68.

Q 3. What classification does Shell Corena S3 R 68 meet?

A. Shell Corena S3 R 68 meets ISO 6743-3 (compressor oil classification).

Q 4. What is the difference between Shell Corena S3 R 46 and S3 R 68?

A. Both are Shell Corena S3 R premium rotary compressor oils meeting ISO 6743-3. They differ only in viscosity grade: S3 R 46 is ISO VG 46 for general rotary compressor service; S3 R 68 (this product) is ISO VG 68 for higher-duty rotary compressor service.

Q 5. What is RPVOT testing?

A. RPVOT (Rotating Pressure Vessel Oxidation Test, ASTM D2272) is a standardised oxidation-stability test for industrial oils. The test measures how long an oil resists oxidation under controlled high-temperature high-pressure conditions, and is a key performance criterion for rotary compressor oils where long oil life is required.

Q 6. What is an API/ACEA classification?

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.

Q 7. What is an OEM Specification?

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.

Q 8. What is an OEM Approval?

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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