JohnBoy
Well-Known Member
Cavity wax should significantly slow corrosion from within. Probably a bit late for your Hilux but something to consider for its replacementMy 03 Hilux developed a hole in the chassis at a bend recently.had to plate it over for testing.
I asked the tester about protecting the underbody and he said chassis usually rots from within because there are holes where water gets in to the chassis rail and causes rust at a low point.
Surface rust won't fail a test AFAIK.
So is there any point spending time and money preventing the unpreventable