Logan..if it is from a leak it probably would have shown itself a long time ago.

I would go out on the limb to say most people have a bit of corrosion and never notice it. I had no real issues until moving my cables to put the new battery in. Then all heck broke loose and I've been going nuts. Happened to have a cover slip off and found it.

I'm just curious as to why mine looked brand new...they werent.

Anyone ever consider switching to top-mount cables?

A couple things here...

First, as to the comment about a Walmart battery. Walmart carries a premium battery with a full 3 year replacement warrenty that we use at work for the forklifts. These batteries get completely abused an work much better than any of the alternatives we used prior to going to the Walmart product. Just a perspective.

Secondly, I plan on pulling my cables and am even considering replacing them, as I know there is some corrosion on them due to a battery failure, some years ago, that also corroded the battery tray. Whenever I finally get around to that project, it will include replacing my coolant overflow tank, replacing/reworking the battery tray, and probably replacing both battery cables.

In the meantime, I'll just let Bill bug me about it, lol.