Are you all using oil or grease on your worm gear? And what makes one better than the other in this situation?

Grease is not the best option to lube worm gears due to their exposed nature. The grease collects dirt and gums them up. A couple drops of oil works fine. I use a toothpick to drop some 90wt gear oil into the groves. Jfrancho had a good idea of using ATF (automatic transmission fluid) The atf will lube very well but is thinner and may require slightly more frequent relubing.

When I was a youngster I had a worm gear/pawl failure at a time when one reel and rod was standard. I was out of fishing until we found and received a new one. Beginning then I started putting a drop of very light oil on the worm gear every fishing day and still do. I do a very basic clean and relube job on the reels annually but I don't break them down very much. For me that is a job for the professionals. Depending on how much I fish I will open them up and put a drop of oil in each bearing that supports a rotating shaft during the cast.

J Francko's idea of ATF sounds pretty good but I use KVD's line conditioner or Reel Magic depending on what's in the boat.

My advice is to keep Reel Magic, WD-40 and all other similar spray silicones away from reel internals and levelwinds. The solvent that makes them sprayable actually acts as a degreaser and leaves little residual lubrication.

I would not recommend using KVD Line & Lure Conditionaer to lube any reel part either. The ATF works pretty well, as does any fine reel oil.

I have started using TG's Rocketfuel, liquid grease, it is basically a very heavy version of the yellow label rocket fuel. If it's a little too thick, you can custom blend it with any of their other products in the rocketfuel line.

My advice is to keep Reel Magic, WD-40 and all other similar spray silicones away from reel internals and levelwinds. The solvent that makes them sprayable actually acts as a degreaser and leaves little residual lubrication.

I used reel magic as a line conditioner and it got into the reel. I had to take the reel apart and clean it because it got so rough. I'll never use it on a reel again, works great for freeing up rusty pliers though.

Reel X works well on worm gears. It has anti-corrision properties and has the right viscosity.

Agree with Reel X or any machine oil such as 3 in 1.