Not sure if you have Lowe's in Indiana, probably so. What I use on aluminum on my Motorcycles is a product called "Aluma Bright", you can find it near where they sell the truck tool boxes. I think a gallon is around $27.00 on Amazon. I hope it works for you. Good luck!
1963 Chevy C-10 Fleetside 1970 C-30 Dump Truck
2025 Silverado High Country 2500 Diesel
2012 Indian Chief Vintage serial #002 motorcycle
1946 Indian Chief, 1947 Indian Chief w/sidecar,2014 Indian Chieftain, 2015 Indian Scout