Engine Aluminum Oxidation - How to Clean - ZR-1 Net Registry Forums

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Engine Aluminum Oxidation - How to Clean

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08-29-2022

chesnut

Join Date: Oct 2019

Location: Mansfield, TX

Posts: 120

Engine Aluminum Oxidation - How to Clean

My 1992 ZR-1 engine is showing some black spots.

Is this oxidation?

How to clean without tarnishing?

Thanks in advance for your all's help.

Gary
....

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