I used an ABC to put out a trans fluid fire on my rig and the exhaust pipe below the manifold actually pitted from the dry chemical. It has been over six months and the exhaust still has white residue on it. Scrubbing didn't do it.
Least u got the paint cleaned off fast
My subaru had a fire when the power steering line exploded on to the turbo housing. I also used an ABC extinguisher, I was never able to get all the powder out of the engine bay. I tried pressure washer, ect. The turbo and all surrounding exhaust piping had a white residue look that would not come off.
So choose your extinguisher carefully
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