I also wasn't able to find the 'noalox' product at the local store that was supposed to be a distributor. What I did find was this stuff. It claims to improve conductivity and protect aluminum electrical connections.
You're supposed to work this paste in with a wire brush or emery cloth to both sides of the connection, then put them together. Sounds to me like its attempting to stop the oxidation before it starts. This sounds like a different product than the noalox which claims to 'cut aluminum oxide'.
I'd like to test it to see how well it really works. So, I'm thinking I'll cut a bunch of aluminum spacers and stack them together and measure the resistance. Then I'll use this stuff and reassemble the stack and measure resistance. Ideas are welcome for a better testing procedure.