On 3/11/20 1:52 PM, Andrew S. Mace wrote: > TeriAnn, what am I missing? Redline's website specifically states > "MT-LV, MTL, MT-85 & MT-90 are not for use in differentials with > hypoid gears"! > > <https://www.redlineoil.com/mt-90-75w90-gl-4-gear-oil> > Missing? Distinction between differential and transmission? mjb.