gasongasoff

Just picked up a new 2012 C2S...and noticed a brownish red discoloration on my exhaust system. Is this normal?

NA011

Cosmoline

ADias

Ah the smell of cosmoline! Funny, that some cars still have it and others do not. I wonder if it has to do with shipping route and/or carrier.

gasongasoff

Why the heck did they have to spray it all over the exhaust piping?

AYHSMB

So it doesn't rust

Actually I'm not sure if they do spray it on the exhaust, it may just be dripping down from the engine. As you run the car in, it will melt & burn off. Enjoy the smell!

gasongasoff

Hey, peoples, that brown stuff is still there on my muffler, it hasn't burned off. How can you tell is it's cosmoline vs. rust?

gota911

Cosmoline will feel waxy. You can scrub it off with a cleaner and a stiff plastic brush.

gasongasoff

What cleaner will remove cosmoline, but not rust?

NA011

Cleaner:http://www.thewoodnerd.com/tips/cosmoline.html

JW911

That's because it takes like 20,000 miles for it to burn off.

Edgy01

It may be heat discoloration. Cosmoline can be removed with a little effort. I like to have the cosmoline off so that the engine is completely dry and much easier to discover any seeps that might creep up.

gasongasoff

Thanks, but WD-40 also dissolves rust!

Strangely, I haven't seen anyone else's exhaust with brown discoloration.

It was there when I picked up the car with 30 miles on the odo. Why would there be heat discoloration?