Geartex EP-C is designed for use in automotive hypoid drive axles, steering systems, non-synchronized transmissions and transaxles which require a fluid with API GL-5 performance.
The friction characteristics of Geartex EP-C make it unsuitable for use in synchronized manual transmissions and transaxles, and it should not be used in these applications unless a GL-5 fluid is specifically recommended
Operating temperatures of above +100 C will lead to a significant reduction in the fluid service life. Peak operating temperatures should not exceed +120 C.
Note that Daimler axle oil specifications include a minimum viscosity requirement that is not met by Geartex EP-C 80W-90. Although Geartex EP-C 80W-90 is suitable for use in MB 235.0 applications, use Geartex EP-B 85W-90 if an approved product is required.