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A. Q8 Oils Auto 15 ED is a synthetic heavy-duty ATF for commercial vehicle and bus automatic transmissions requiring extended drain intervals — particularly ZF TE-ML 14B and Voith DIWA-equipped buses.
A. Yes, Q8 Oils Auto 15 ED is a full-synthetic heavy-duty automatic transmission fluid.
A. 'ED' indicates Extended Drain — the product carries extended drain approval for ZF TE-ML 14B and Voith DIWA H55.6336.3X commercial bus and truck automatic transmissions.
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. Q8 Oils Auto 15 ED carries MAN M339 E; ZF TE-ML 14B, 02F, 03D, 04D, 09, 11A, 11B, 16L and 17C; Allison C-4 and TES-389; and Voith DIWA H55.6336.3X.
A. Yes, Q8 Oils Auto 15 ED carries Voith DIWA H55.6336.3X extended drain approval — making it suitable for Voith DIWA-equipped buses operating on extended drain intervals.
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.
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