DAE think the WD-40 fix on a stuck bolt actually makes the snap worse

My neighbor soaked his caliper bracket bolts in WD-40 for two days in his garage in Tucson and snapped both heads off anyway, because that stuff is a water displacer, not a real penetrating oil. PB Blaster and a 50/50 acetone and ATF mix have never failed me on rusted hardware, so what are you all reaching for first?

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