I have read and heard arguments both for and agaist moly greases. most are for them. This week I had the wheel bearings and brakes checked on my 95 4Runner. They changed the pads. The bearings were in perfect shape with 3 years - 50,000 miles - of 85% dirt and gravel roads with a Bentonite/moly/graphite grease. What little time it spent on asphalt was at 70mph. The last time they had been greased was after the river took it downstream. At that time the grease had 30,000 miles, 28 hours under water, and 30 days of towing back to civilization. At 110,000 miles the wheel bearings are original. Greased at 30, 60, and 110. That must say something for Moly greases.