How should I lubricate my Shimano freewheel? I have a Shimano freewheel (MX-30) that came with my bike from new.  Unfortunately the internals got all gunked up and it stopped working (never engaged and became free both ways).  I have bought and fitted a replacement part, but I would like to know how I should lubricate / maintain the freewheel so that this does not happen again.
I love ATF (Automatic Transmission Fluid) for freewheel (not free hub) lube. What I do is lift the bike-- if someone can help you with this, it's a bit easier-- so that you can rotate the pedals (and make the back wheel spin). Ideally, the bike should be tilted to the non-drive side about 45-60 degrees. With the back wheel rotating, you can see where to lubricate. As Sheldon puts it:


  Look inside the smallest sprocket. The sprocket will be stationary,
  since the wheel is coasting, but you'll see an inner part of the
  freewheel that is spinning with the wheel. Drip oil onto the crack
  between the turning part and the stationary part. Gravity and
  capillary action will help work oil into the freewheel.


BTW, thought I should add what I keep my ATF in for cycling purposes. I have some old plastic bottles that once held printer ink. They look similar to this: