EP doesn't necessarily mean it's not compatible with yellow metals! I recently bought "Penrite Mild EP Gear oil" for my Chev steering box. It's safe to use with yellow metals. The C8 steering box has a washer and a bushing in brass. The box still leaks though.....so I am now also looking at the 0 or 00 grease, which is what is used in hydraulic systems on trucks here.....I wonder, is it safe for use with yellow metals?
https://www.penriteoil.com.au/produc...ar-oil-sae-110
Alex