Excuse me, the dumb ass here. This is copied from their web site.
http://kalecoauto.com/index.php?main_page=product_info&products_id=17Patented high-tech design allows KaleCoAuto Plug/Wire cleaner to reclaim old spark plugs and wires! Did you know that tune-ups are completely unnecessary? The only reason your car has bad spark is dirt in the plug lines, and build up on the spark plugs! Simply pour this cleaner into your battery, step back, and watch the engine run smoother! Not for use on vehicles equipped with Opti-Spark. Now reformulated for compatibility with diesel engines!
I fail to understand how pouring this into my battery is going to clean my plug wires. Every vehicle I have has a sealed battery, does this mean that I need to drill a hole in them?