[Chad Hauris]

Deoxit works better because it is one of the few products that actually removes tarnish and oxidation from contacts. (Tech Spray "Rid-Ox" works pretty well for this too). It somehow works chemically with the metal to dissolve the oxidation. All of the other cleaners I have used no matter how strong will not remove oxidation, they will just remove surface dirt and/or lubricate.

Deoxit DN5 is pretty "dry", it is non-flammable and not nearly as oily as Deoxit "D5". The DN5 used to be even drier but they seem to have reformulated it several times over the past few years.

We have also had good luck with Deoxit 100% gel which comes in a small tube. You can inject the gel precisely into contacts and then remove with a Texwipe cloth. This gel product is a lot less messy than the spray for contacts that are readily accesible.