[timc]

"When used with caution and according to the instructions, Simple Green All-Purpose Cleaner has been safely and successfully used to clean aluminum. ... Therefore, contact times for unprotected or unpainted aluminum surfaces should be kept as brief as the job will allow - never for more than 10 minutes."

Or this:
https://www.amazon.com/Simple-Green-Extreme-Aircraft-Precision/dp/B081D5R6T9


I've used the Simple Green All Purpose on many Aluminum engine parts over the years with no side effect at all. I don't soak it and leave it, I spray it on, scrub if needed, then rinse. Just finished cleaning a Land Rover V8 and all it's parts without any issues. I would not use it on wheels or anything with a nice "coated" surface though.