I only clean stuff if I need to work on and stuff that needs to be clean to work...
Forget polishing! No time left for polish.
Gunk is great
Gunk is good
Let's us clean off engine gook.
Ahem...
Been using it for over 35 years.
Kerosene with paint brush is good too. Especially for stuff that you don't want to get wet with water.
-Duck