Lubing Hydraulic Seals

[Yamahammer1200]

Got my package from RPM with rebuild kits for the clutch slave and M/C.  Unsure on how to lube the pistons and rubber bits during reassembly.
I have heard everything from a heavy film of brake fluid, rubber grease to Silicone brake grease.
There was a packet of red grease that came with the OEM rear caliper seals.  I  put a thin film of that on the seals, piston and bore once they were thoroughly cleaned.  Seemed to work fine.
Was that Silicone grease?

[Arnie]

Yes, it is probably silicone grease. 
I've always just used the same brake fluid I'm going to use in the system.

[krusty]

Use brake fluid only to pre lube brake piston seal. Use the silicon grease on all other moving parts.