I grease my deck spindals just about every other use (which comes out to around every 4 hours). Just a squirt or two, usually (until I hear the "popping" of the old stuff coming out). Everything else (steering box, lift components, front axle, CV's, etc) get it about mid way through every oil change which comes out to about 25 hours. As for grease, I usually pick up the same stuff J-Mech stated, EP2 grease.
