When Cleaning any powder coated part please use a mild detergent like dawn dish soap or car soap on the part. If you would not use it on the paint on your car don't use it on powder coat. Powder coat is only a plastic the forms around the part.
Heres what will happen.
Before Lexus of Orlando service used a harsh Cleaner on the motor to degrease.
After Lexus of orlando Service use there cleaner on the covers!
Redone in Wrinkle Grey!