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A. HyperDrive KXR 75W-90 is designed for highly stressed powertrains and extreme operating temperatures — passenger car, 4x4 and commercial vehicle axles and manual transmissions where a fully synthetic API GL-5 SAE 75W-90 gear oil is required.
A. Yes, HyperDrive KXR 75W-90 is a fully synthetic gear oil.
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. HyperDrive KXR 75W-90 meets API GL-5.
A. Both are HyperDrive API GL-5 hypoid axle oils. KX+ 80W-90 is the mineral SAE 80W-90 multigrade for general-service automotive axles. KXR 75W-90 (this product) is the fully synthetic SAE 75W-90 multigrade for highly stressed powertrains, extreme temperatures and improved cold-start performance.
A. Synthetic gear oils offer better cold-start performance, reduced gear-train friction, higher oxidation stability and longer drain intervals than mineral gear oils — making them the preferred choice for extreme temperatures, highly stressed powertrains or where extended service intervals are required.
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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