The rust on my brake discs are becoming worse. When i brake, the car makes screeching noises *just replaced brakes 2 months ago*. Im wondering if i can put some rust off liquid on it. Juss wondering if it would ruin the car in any way..

 

there is rust on the surface of the rotor?

squeaking can be caused more by your pads glossing, just take the pads off, get a square of sandpaper 80 grit or whatever, put it on the table and sand your pads surface.

if there is rust forming on the face of the rotor then you may have more serious problems than the rust itself (the contact of the pad on the rotor will deter rust from forming since there is semi constant friction.)

 

Well that rustoff would ruin your brakepads...

 

resurfce the disc or get new ones.....

 

make sure that the factory brake pad shims are used or get some new ones and put them on.

If they are missing the pad will vibrate between the caliper and rotor and squeal all to hell. More so if you are using autozone or napa lifetime replacement pads as they are super hard and high in metal content. Also make sure to give a decent covering of anti-sieze between the pad and caliper. That should help get rid of the squealing.

Back when I worked at Sear Autocenter we always had problems with Hondas and Nissans squealing after a few weeks of use. We always ended up getting dealer pads and the car never came back.