Only holds up if you apply 3-4 rather heavy coats. It’s my preference, but, I live in sw TN. Real winter, in a rough year, might last 2 weeks.
If I moved back to WA, OR, ID, MT? Real mountains, real ice, sub-zero mountain pass temps for weeks at a time? Epoxy primer, catalyzed urethane color, catalyzed urethane clear, and… Pump sprayer full of hydraulic oil. Saturate any/all seams, bushings, pivot points, etc. ALL 11 trucks on the farm leak, engines, transmissions, differentials. Unless I decide to paint the chassis, they stay gooey.