kchida

Almost all of my exhaust system has a good amount of surface rust. Is there anything I can do to remove or slow down the rusting process? I was thinking about using naval jelly to remove the existing rust then following up with some kind of coating. What products are out there to protect the exhaust system from rust? I drive around Lake Tahoe quite a bit during the winter so I have tons of road salt underneath the car. Every once in a while I spray the underside down with a hose but this doesn't seem to be enough. I know painting any part of the exhaust is a waste of time. I know many of you live in areas that snow. What do you guys do?

Sin

If you think it's bad on the outside, the inside is worse. Especially if you are in Canada. The sulphur and NO in the exhaust mixes with the water vapour to make pretty strong acids that eat out exhausts from the inside out. In Canada, we have higher sulphur content because our laws regarding sulphur content in gasoline are less strict, primarily because we have much fewer cars per area. And again, most exhausts rust from the inside out. So if you are worried about it rusting, not much you can do.

krismax

iTrader: (15)

The answer is 304 stainless steel.

gepetto

Or buy catbacks...(not that I would know)...

maxmobile

Lets not forget about the rest of the car where it can rust due to the salt. It doesnt hurt to get it rust proofed, where they spray every nook and cranny on the car. As for the exhaust I know that the moisture build up does cause it to rust from the inside out like Sin said, and that if you drive short distances on a daily basis will cause the exaust to rust faster cause it doesnt allow for the moisture to evaporate

Miasma

best way to control rust:

petition to get city to use magnesium chloride

CaLSoNiC

I live in the desert... we get like 9 inches of rain a year.
All I gotta worry about is massive dust. :P
Move to New Mexico... your rust problem should be solved.