Differential fluid???
Differential fluid???
Anyone heard or know of any issues using synthetic 75/90 instead of the Burmah SAF-AG4 that is recommended by Porsche? Have heard of some diff failures and would like to change out my fluids and can't seem to find out too much info about the actual viscosity of the Burmah (heard it has the feel of water-very light) Any suggestions, or has anyone tried this with success?
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