Not my experience... I don't work for PB Blaster (or Kroil) for that matter. And don't know how to conduct a truly objective "test" for penetrating oils BUT I have worked on lots of rusted fasteners (Southern Ontario) and can tell you "my experience" : WD40 is crap for rusted parts BUT is pretty good removing stains from pvc type flooring. Kroil AND PB Blaster BOTH stink! But PB Blaster works (at least quicker) and better than Kroil. That's my hands on experience...not advertising or Internet hype. If your Experience is different....wonderful.....but I keep several cans of PBB around at the farm, home and cottage. I have two large cans of Kroil as well which I bought because of what I read on line in posts like this. I will still try it occasionally... On some rusted applications where it can be poured (PBB can be sprayed)...my experience is Kroil has never removed a fastener that PB Blaster couldnt remove and frequently PB blaster works were Kroil did not..they are both similarly messy when they start breaking down the oxidation. But I am always looking for a miracle product...if there is one I haven't tryed yet. I will say that fastest way to clean a rifle bore of copper fouling is "Sweets" but it is too aggressive for most folks use and definitely needs to be washed away thoroughly by hot water (lots of it) after use!Try ATF and acetone.. Apparently PB blaster was like 3rd on this penetrating test for best pentrate oil. The mixture was #1. PB blaster it stinks and I don'[t find it works well. Its better then WD40 but not by much.
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