Spray Parts Washer Detergent Recommendations

I'm picking up a used Cuda heated spray parts washer today for $500.

Cuda is about 10 miles from me but they won't sell me the detergent. I have to go through a reseller and pay $35 in shipping, and $123 for the product.

I have found Zep R20034 detergent for spray washers for $73 shipped. That's an $83 dollar savings.

I have always had really good luck with Zep products, but I wanted to see if anyone here has any recommendations on what to use.

I will mostly be cleaning aluminum...

Spray Parts Washer Detergent Recommendations