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Gear oil EP 90 is a type of lubricant specifically formulated for use in gearboxes and differentials. The "EP" stands for extreme pressure, indicating that i...
24 Ιουλ 2010 · Castrol Synthrax is not good in older boxes due to yellow metals corrosion risk. 75w80 is a fraction thinner in winter (It's a curve thing). Shell or Mobil if you can't find the real McCoy oil. ALWAYS CHECK THE OIL FINDER PAGE, as it might list OEM dealer only for some boxes.
Castrol EP90 (extreme pressure) GL4 gear oil. As specified in many classic gearboxes and rear axles. Suitable for conventional spiral bevel final drives, mild hypoid axles, spur and helical gears and any other applications where the use of API GL-4 is required.
Product Description. protect against problems due to oil oxidation, gear wear and corrosion. Application. Classic EP 90 is recommended for the lubrication of conventional spiral bevel final drives and mild hypoid axles where API GL-4 oils are recommended.
Extreme pressure multi-purpose gear oil for hypoid and non ...
23 Νοε 2015 · A general category monograde SAE EP 90** pre-SAE J306 in 1970 had a wide viscosity range specification of KV@100C of 13.5 -24.0 cSt. Then an undesirable scenario arise whereby a low shear-stability EP 90** gear oil would still pass the ASTM/API stay-in-grade tests and got certified.
There are differences in the additive technology used for lubricants for each specification, and just because one type of gear oil works well for one type of gear application, that doesn’t mean it will work well for all.
