Like many things people will have brand loyalty. As an automotive tech, I have learned quite a bit on this subject at
- Bob is the Oil Guy. I've been with VW/Porsche/Audi for 15 years and had been to the dealer schools and they don't teach squat about this. But basically, I believe you need two greases for our air-cooled cars. A moly enhanced grease for the CV's and a quality wheel bearing grease for the front and rear wheel bearings. As far as moly greases go the two top tier seem to be the Swepco 101 Moly and the RedLine CV-2. And there are others. Regarding wheel bearings, what you want is an NLGI "GC-LB" and the rating should be #2 for most climates. Pennzoil makes a very good grease called 707L. I've read a mans thread where it was his opinion that Valvoline's Synpower full synthetic grease was tops and at less than $10 for a tub available at Grainger makes this widely available. My thought is that since the rear wheel bearings are a labor intensive job to consider a quality grease spec'd for the long haul trucker, such as Chevron's Delo line. You may want to see if any petroleum distributors are in your area such as Exxon Mobil, Shell (pennzoil), or Chevron-Texaco. They all have fine products, informative web sites, and tech lines to call. Oh, and a grease you choose needs to be disc brake rated.
Hope this helps, Bill.