DeoxIT D100L contact cleaner

In going to check which cleaner I have I discovered a bottle of Dot 4 brake fluid has leaked into the box I keep the cans/fluids in. Deep joy cleaning that up.

I've got the WD40 Contact Cleaner, it seems okay but didn't appear to remove corrosion I could see visually. The connector didn't work reliably before I sprayed it, and didn't work reliably after I sprayed it either. Cleaning it off with steel wool was more effective, but that only works on decently sized pins. Sample size of one isn't so useful!
 
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