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A. Castrol Hyspin HLP-Z 46 is primarily for use in hydraulic equipment but is suitable for other duties requiring lubricants with good oxidation stability and lubrication performance. The ISO VG 46 viscosity is the standard general-service hydraulic viscosity.
A. The 'HLP-Z' designation reflects the German DIN 51524 Part 2 hydraulic fluid classification (HLP — anti-wear hydraulic fluid) with the 'Z' suffix indicating a zinc-containing anti-wear additive system.
A. Castrol Hyspin HLP-Z 46 is supplied at ISO VG 46 — the most common hydraulic viscosity grade in industrial service.
A. Castrol Hyspin HLP-Z 46 meets ISO 6743-4 HM; and DIN 51524 Part 2 (HLP).
A. Both are Castrol Hyspin HLP-Z zinc-containing anti-wear hydraulic oils with the same classifications. HLP-Z 32 is ISO VG 32 — the lighter mobile-equipment viscosity. HLP-Z 46 (this product) is ISO VG 46 — the standard general-service viscosity.
A. Both Castrol ranges meet the same core hydraulic-fluid classifications (ISO 6743-4 HM, DIN 51524 HLP). HLP-Z uses the German HLP-Z naming convention; AWS uses the Anti-Wear-Stabilised naming. If the equipment manufacturer specifies one naming convention, use that range — but both products are technically equivalent for general industrial hydraulic service.
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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