Overflow Bottles

[TTipe]

What cleans the dull stains (from oil / exhaust) off the outside surface of them?

 

[Squid4life]

Buying new ones!

Sorry, never had any luck cleaning them. Keep an eye out on ebay, they sell pretty cheap.

 

[belsie]

Try Acetone

 

[earlbrown]

Castrol Super Clean or CAREFULLY spraying them with brake parts cleaner is about as clean as you're going to get them.