Need a chemical for aluminum. Advice?

I was contacted to do a few Big Rigs. (minus the flatbed trailers) Just wash. They are concerned about the aluminum parts and gas tanks. Wanting them cleaned. Someone mentioned acid wash?



I need a product that will melt the grime away from the aluminum.

I also need a recommendation on a product as a pre-soak to get the good part of the crud off.



Here are a few pics.....

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Any advice would be appreciated!



Edit..... I am not looking for a "Boutique" product. I want something that works and not a re-label product with a jacked up price......:up
 
Check with some boat dealers. I can't recall the name but there was a product they sprayed on nasty pontoons that made them bright again.
 
Tex, Eagle One produces an etching wheel cleaner...it's either ABF- or HF-based. Strong stuff, caution and gloves must be used. I've had some luck with it on uncoated aluminum. It can leave the metal looking too white. Experiment on a small area to ensure it's not going to make a mess.



Available at Advance Auto Parts.
 
Looking for a wash. Not going to polish the tanks.



I have a wheel cleaner with HF, and I tried in a small, hidden spot. It turned it white. Plus with the risks of using HF anyways, I will pass on anything with HF in it. Not worth my health for some money.
 
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