Caustic based residues (the white ring is usually, but not always acid residue).........it's excellent on chrome & plated plastic in removing (visually) water spots. Sometimes you just have to place a little on a sponge/cloth and just let that part of the sponge rest for a few minutes on the paint. Household vinegar is only 5% concentrate (the rest is water).....so mild it will not harm the paint in any way (providing you only use it for a few minutes max of course-----common sense does come into play here)
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Flatheads ain't so bad!
Certified backyard mechanic I & II
Last edited by Beechkid; 11-03-2015 at 03:40 PM.
Reason: Thinking caustic and i typed acid.......