Fellas, I know you won't believe this, but a company called
Mirachem has a very good APC called NOW. In our home carpet shampoo machine, my wife uses it full strength in the detergent fill basket. When I use it on my car's carpeting, I dilute it 50%.
This stuff is low-sudsing, which is important for our home shampoo machine. Too many suds = potential for pump failure. But what do y'all care about that? This stuff WORKS. It gets up kid stains (IOW, everything). Even diluted for auto use, it removes grease and oil from my carpeting with little trouble. I just spray, brush, and wipe.
NOW can also be used as an APC for upholstery and dash. Last year, when I cleaned my garage floor, it had no trouble removing years of oil that had leaked from my old luxo-boat turned luxo-bomb.
Sam's Club, back in the day when they were called PACE, used to sell this product. When Sam's Club took over, they discontinued the product, and my wife was devastated. So I searched the Internet and found the
Mirachem web site. We generally buy a 4-gallon case that will last us a year. (We've got grandkids, so we go through a LOT of product.)
The only problem is, their web store sucks. When you place an online order, it never processes. So you may have to call their toll-free number for assistance. Just tell them you tried to order from the web site, and they'll let you have the NOW cleaner at the online price. It's a hassle, yeah, but worth it.
Charles