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I am new to this forum and live in the Netherlands. (you know that little country near Amsterdam )
I have a Walker MT from 1999 1250hours

I want to chance the hydro oil and i must use 15w50 oil Mobil 1.
I have the opportunity to get mobil SHC 630.
Can this be used or is it only for the "Tops" models

Thanks!

What is Mobil SHC 630 used for? Mobil SHC 630 gear oil


Formulated with high VI base fluids that resist high temperature viscosity loss and a proprietary additive system, Mobil SHC 630 gear oil is designed to provide outstanding lubrication for gears operating at elevated temperatures while resisting thermal breakdown, oxidation and related deposit formation

Walker used the Mobil shc 630 in the later models.
Are the hydros from the old models the same as the later models?