My experience with Deoxit Gold (100% solution) was negative; I applied a small small quantity on my gold plated connectors and the sound became cold, harsh; after some days I cleaned two times with IPA 99% and the sound returned to pre-Deoxit state. If You have gold or rhodium plated connectors please just use IPA every six months. Deoxit Gold contain a corrosion inhibitor and act like an insulator, so in no way it can improve electrical connections. If You have oxidized connectors, change connectors or clean with a toothbrush and a lot of IPA. Caig write in their pdf that quantum tunnelling is the mechanism of action of the Deoxit Gold, but they don't explain in details.
Treated my interconnects with Deoxit D5 today
I have a nice audio system and had a great notion to clean all my connections with alcohol and treat all the connections with Deoxit D5. I did all the fuses as well. Well, the result is that the system now sounds flat and lifeless as hell... way different than I previously heard. What's up with this? I am crestfallen...