Once a year I go by NAPA and get some GUNK engine cleaner but I don't use it on the engine. I jack my car up and spray a couple of cans on the underside of my car (including my
oil pan). Then I drive to the local car wash and spend a couple bucks washing the radiator, underside, wheels, tires, under the gas tank, trans.,
oil pan etc. Bring it back home and use the Brake cleaner for everything under the hood.
Through out the year I will use the brake cleaner on spots that may have gotten dirty or oily from roads or me missing the funnel while changing
oil. I use Simple Green to keep my garage floors clean as well as any parts I may take off that needs cleaning.
Clois