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A. Castrol Transmax Universal LL 80W-90 is positioned as a universal fluid for manual transmissions and axles in commercial vehicle and passenger car applications, with the multigrade chemistry supporting operation across varied ambient temperatures.
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. Castrol Transmax Universal LL 80W-90 meets API GL-4.
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.
A. Castrol Transmax Universal LL 80W-90 carries MAN M341 Z; MAN M342 M; and ZF TE-ML 02B.
A. Smooth Drive Technology is Castrol's proprietary formulation in the Transmax range, supporting smoother gear engagement and protecting against pitting alongside thermal and oxidative stability.
A. Both are Castrol Transmax Universal LongLife universal manual transmission and axle fluids. The 80W-90 (this product) is a mineral-based API GL-4 fluid. The 75W-90 (PRD00002308) is a fully synthetic API GL-4/GL-5 fluid with SAE J2360 approval and lighter viscosity for fuel-efficiency.
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