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A. Castrol Hyspin AWH-M 32 Supercln is positioned for severely stressed hydraulic systems requiring ultra-low contamination levels — applications such as servo-valve hydraulics, precision machine tools and aerospace ground-support equipment where particle contamination must be controlled to tight ISO 4406 cleanliness codes.
A. The 'Supercln' designation indicates additional filtration in production for tighter as-supplied cleanliness — suitable for hydraulic systems with servo-valves or fine-tolerance components sensitive to particle contamination.
A. Castrol Hyspin AWH-M 32 Supercln is supplied at ISO VG 32 — the lighter mobile-equipment and cool-ambient hydraulic viscosity.
A. Castrol Hyspin AWH-M 32 Supercln meets ISO 6743-4; and DIN 51502 and 51524.
A. Both are Castrol Hyspin AWH-M 32 anti-wear ISO VG 32 hydraulic oils. The standard AWH-M 32 (PRD00001335) is for general hydraulic service. The AWH-M 32 Supercln (this product) is the high-cleanliness grade with additional filtration in production for tighter as-supplied particle counts — suited to servo-valve and precision hydraulic systems.
A. Hydraulic systems use fine-tolerance components (servo-valves, proportional valves, axial-piston pumps) that can be damaged by particle contamination. The ISO 4406 cleanliness code measures particle count per millilitre at three size thresholds (4, 6, 14 microns). High-cleanliness grades extend component life and reduce unplanned downtime in critical systems.
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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