Hi guys, I've been traveling, I'm out of the country, ok here's what I saw. When I replaced my my outer boot using the inner boot method, the lube ran out like oil, not grease. So the inner boot grease (more like a lubricant than a grease) is definitely different. Now did I use the Pegasus grease...ahhhhh, no! Here's what I used, see link below, it's not thick at all, very light weight, probably lighter than the supplied outer boot grease, bought it at my local O'Reilly's parts store.
CRC Industries Heavy Duty