Aero9000102

[&:]So... i have just started to polish my stock saab 9000 delivery pipe. It is now fully chrome and looks brand new... i spent hours cleaning and polishing it. i am just curious as to why there are little, what look like oil sludge marks all over it. i was wondering if anyone knows of a good cleaner/degreaser that can get rid of tough grime and grease all the help i can get is appreciated.

Roto

castrol degreaser

Aero9000102

is it expensive and is it tough?

Roto

the actual name is "castrol super clean" 14.95/gallon and it is the best degreaser I've ever had my hands on