Does anyone know what type of silicon oil these diffs use?
Subaru lists the entire assembly as a non serviced item, but I have been led to believe that they can be serviced and re-oiled. The one in my 6sp RB supposedly has Toyota oil in it as the factory oil is too heavy and causes binding when it gets old.
I have just disassembled and reassembled one (I think it's out of a Foz) that apparently suffered the old 'clunking on slow tight turns' syndrome and it appears to be more than do-able with the correct oil.
It's looking like the one in the RX needs doing.
Interested to hear from anyone who has done this or had it done and can confirm that the RX is actually a VCD and not an open diff.
Cheers,
Jase