I just assumed when you said 92 cavalier, it was from the 90's!No, I just bought it last year after the ICM went out again.
This car does sit a lot. Sometimes with a battery maintainer on it. I've only put about 2,000 miles on it in the last two years.Corrosion on the negative side only usually means the battery is being under charged.
I'm a little late here, if you know or have access to a Commercial/Industrial electrician or facilities maintenance person, ask them about contactor paste or something to that effect. My dad used to work for an electrical wholesale outfit and he always kept a 10-12 oz. squeeze bottle of a black paste ( can't remember the brand) and all he did was put a thin coating on the battery posts/terminals and use a small brush to lightly cover the cable ends once installed and never had any issues with corrosion.
You will never have corrosion on the battery cables or connectors (battery clamps) with an AGM.I have AGM batteries in the Honda and Buick seven years now, no visible corrosion yet. I still clean the terminals every two or three years or so to brighten them up, then a quick shot of terminal spray. The AGM batteries are were average priced, not high end ones.
I have used the CRC cleaner and protectant for years too and is what was used on this battery and it didn't help.I have used CRC battery terminal protectant for years. Stuff is like magic. No idea how it works but it does. CRC battery terminal protectant