Ok, its bath time, for the rig, not you, what soap do you use? and first person to say "regular old dishsoap" gets a kick in the nards... lol
I personally fell in love with mothers gold, but then couldnt find it locally anymore, so now i use eagle wet....
Cleaning Tires:I use AJAX for the tire, and then eagle Wet tire shine-hows about y'all?
Wheels-eagle clearcoated aluminum wheel cleaner
Underhood:just a regular degreaser

 

I use Meguiar's Pink carwash gel.
Been using it for several years.

To see what else I use on the whole rig including the interior & outside, see my detail site.

The only time I use Dawn dishsoap is at wax time.
It does a great job of stripping off the dead wax before I start in on claying the rig.