Is this harmful and if yes what measures should I take to fix / avoid further rusting?
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Happens to me too sometimes. Goes away after a drive.
Thanks for the reply.
your water or detergent has a high pH (acidic) , use car shampoo.
This is normal. Just drive and it will clear up. No problems.
Wrong. Washing, rain, or even high humidity can cause such surface rust on disc brake rotors. This is normal.
way to be ignorant. let me rephrase.
"your water or detergent has a high pH (acidic) , use car shampoo."
Using a car shampoo (or even 100% distilled water of pH 7) changes nothing. Exposed iron will rust. Rotors will clean up just fine on their own. What the OP has posted is normal.
WD40 can be used to protect from rust. It leaves a thin flim for future protection as well.
I'm with you on this oneif the rotors rust this easily after a car wash, imagine what happens when you go through a flooded area with drainage water mixed................just not right
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share your thread link of rotor change, please
@memad do you spray WD-40 every morning before leaving for work?
WD40 or any other type of lubricant must NEVER be used on the rotors. NEVER.
its all a conspiracy I tell you
Wtf did I even ask ...
Stop fighting ppl !!!
try it once. The experience is pretty exciting..
more like this
Why WD40 then? Grease would work even better!
I think fairy spit works better than distilled h2o
Come on man, work with me here. This is the serious section of PW supposedly.