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A. Shell Tellus S3 M 68 is a premium zinc-free hydraulic fluid for manufacturing and industrial hydraulic applications. The ISO VG 68 viscosity is suited to warm-ambient and higher-pressure hydraulic operations.
A. Shell Tellus S3 M 68 is supplied at ISO VG 68 — the heavier general-service hydraulic viscosity.
A. Shell Tellus S3 M 68 meets ISO 6743-4; and DIN 51524.
A. Yes, Shell Tellus S3 M uses exclusive zinc-free ashless additive technology.
A. Both are Shell Tellus S3 M premium zinc-free anti-wear hydraulic oils with the same classifications. S3 M 46 is ISO VG 46 — the standard general-service viscosity. S3 M 68 (this product) is ISO VG 68 — the heavier viscosity for warm-ambient or higher-pressure hydraulics.
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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