Terry, all three products have the same ingredient (or derivative thereof) in them. I thought I had some before and after pics of a 25 year old fuel tank while cleaning it with oven cleaner (blue can good, yellow can bad), but I couldn't find what I was looking for. I did the undercarriage parts at the same time, but my before and after pics skipped the step where I loaded the parts into my trunk and dropped them off at my neighborhood plating shop. That part was meant to be funny. I know I can be a spaz, so here I am explaining the punch line, which makes me feel like I've failed miserably at humor.