On 2011-01-22, J. Clarke > wrote:

> You'll also see it on motorcycle exhausts.
>
> There's some stuff called "Blue Job" that you can get at some motorcycle
> shops that is supposed to take it off without scratching but it still
> takes some scrubbing.

Yes, but m/c exhausts are chromed, not polished.

Using the right abrasive scrubby, you can scrub all day on chrome and
it won't scratch. Polished SS will. I used to polish all the burnt
on oil and boot rubber off my HD pipes by using Simple Green and 00000
grade steel wool on med hot pipe. I don't recall, exactly, if it removed the
bluing, but I think it did.

That Blue Job stuff may work if one uses a non-scratching scrubby.
Have you tried? As for general cleaning of polished SS, jes spray
with oven cleaner and rinse off.

nb