help with cleaning coolant expansion tanks

[AmericanTermi]

just bought this 03 cobra and there was a moroso sticker on the coolant tank, after removing it aswell as the residue there are still markings on the metal itself.... help please, any ideas?

 

[PhoenixM3]

just bought this 03 cobra and there was a moroso sticker on the coolant tank, after removing it aswell as the residue there are still markings on the metal itself.... help please, any ideas?

metal polish and elbow grease.

 

[HudsonFalcon]

Buff the tank with some aluminum polish as said above.

 

[blue 07]

I use Adams Metal Polish 1 and 2 on my Moroso tanks.