wd 40

[dr. d]

Sa stockyard ng casa, iyong mga rims/mags may plastic na film/"cling-wrap" para hindi talsikan ng ulan at kalawangin ang disc brakes.

Puwede kaya spray ng WD40 sa disc brake para same effect? Or may mas okay na spray para dito?

Sasakyan namin naka open parking. Ngayong tag-ulan puro talsik at makapal na ang kalawang sa disc brakes. Bihira din gamitin, kaya hindi na "sand-off" ang kalawang.

i think it's a bad idea.
even if WD40 offers only the barest minimum of so-called 'lubrication', it may still be enough to make you lose braking power, resulting to bumper damage.
if the opposite happens naman, that is, the brake rotor surface becomes 'grabby', it'd be an uncomfortable drive until the layer strips off.

kinakalawang yung disc brake rotor?
i wouldn't worry about it.
the amount of rust formed is so minimal, it will take many years and many tens of thousands of kilometers, for them to become replacingly thin.
and it's so easy to clean them! the thin layer of rust is completely removed after two or three mild applications of the brake pedal.