I found that I can use one of my infant son's medicine syringes to lube the pedals. The end is narrow enough to fit into the end of a tube of Phils grease, and tapered so that by pulling just the screw out at the end of the pedal and pressing inward you can force the grease into the pedal.

Old grease comes out the spindle end. Keep pushing until the grease is "clean" coming out the other end. I find I get a lot of grease coming out the next couple of rides after the pedal has been supporting some weight.

I have had my Speedplays going on 3 seasons. I had to replace the cleats about this time last year, and I am starting to get the feeling that I need to replace them again. I'm only getting between 2000-3000 miles on my cleat, but I walk in them everywhere without covers. ...and i could ride them farther, but they lose a little in performance (rock more on the pedal, become a little bit more difficult to clip in, etc...)