I have an older Fox rear air shock (2000 Fox Float RC). I think it needs lubed. I downloaded the manual from the Fox Racing website and it says to use only "FOX Low Friction Grease". Of course, I can't find that anywhere and I suppose there are other greases that would work just fine. What do the bike shops use? What do you use?
I asked an LBS about servicing the rear shock. Answer: Ride it until it blows out and then buy a new shock. This is not the first wrong answer I've received from local shops. The Internet is a much better source of information (and gear).