I have recently ( 3days back) purchased a used car, Honda civic in ohio US. I have noticed white powder on parts under bonnet. Attached is the picture. Is it a concern? What should I do? I am really worried, please advice. Its 2015 Honda Civic SE enter image description here


That's light corrosion deposits from moisture or the detergent the cleaners used. Cleaning it off with a brush should work.

Not a problem unless the pits start to go all the way through or make big holes in the components...

  • Yes, very typical for aluminum ... I'm sure it's just aluminum (or aluminium) oxide. – Pᴀᴜʟsᴛᴇʀ2 Feb 18 at 14:39
  • Big holes!!! You are scaring me. So should I confront the dealer about it? How can I remove this permanently so that it does not damage the parts ? – Pooja Feb 18 at 15:11
  • To get big holes you'll need about another 40 years... It's fine - seen it so often before. You can clean it off and either lightly oil it or leave it dry. – Solar Mike Feb 18 at 15:14

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.