I wouldn't reccomend any oily spray for your cars due to the clay mixing in with the oil and making a grinding paste which wears the parts like anything.
It doesn't matter how much you blow it off there will always be residue left in the hinge pin holes, ball links etc and it will wear the balls and shafts fast.
You are better off using simple green or whatever as long as it is not oily and the car will last way longer without the need to change parts all the time.