This will be very painstaking, is the print etched in at all, or is it printed flat on to the aluminum?
First clean with a mild soapy solution, and use a “Mr.Clean Magic Eraser” to rub off any surface dirt, grease, or grime.
Start with mild acid- Vinegar - Dont get too impatient, leave it on and reapply before wiping it off.
Then go to mild abrasive - metal polish, Silvo- or brasso, bar keepers friend or similar metal polish containing a ultra fine abrasive. Use with microfiber, or terry cloth in small circles.
Then resort to “heavy” abrasives if necessary- #0000 Stainless steel wool(the number of 0’s is very important) light pressure!
Remember Mild to wild! Use the most gentle solution first then Go to the next aggressive step if several applications of the previous was not effective. DONT be in a hurry! Start at a corner and inconspicuous spot with each method!
DO NOT use any solvents like acetone, as it’s quite possible that they make take the printing right off!
At the end after it’s clean I might be tempted to give it a good clear coating of your choice for future protection.