I have done it a couple of times and I'm really starting to doubt it's effectiveness at removing a nice layer of wax.
Perhaps, at the end of 3-4 weeks when the wax is hardly left, it gets the remaining bits off.
With a fresh layer (1-2 weeks old) - it seems that it requires multiple washes to get any decent amount of product off.
I'm starting to think it's more a myth based on people who maintain their vehicles badly. Sure if you don't wax every month and after 6 months of no washes - dawn would be very harse on the clear as it's been exposed to the elements and probably has micro surface abrasions thereby allowing the acidity of Dawn to effect the clear significantly with repeated washes.
For a highly maintained car or even one with has been taken care of several times a year - I highly doubt it effects would be noticed - if it even does anything.
Using a something along the line of a APC+ would be more appropriate in my opinion or Prepsol. :up
Paco
Perhaps, at the end of 3-4 weeks when the wax is hardly left, it gets the remaining bits off.

With a fresh layer (1-2 weeks old) - it seems that it requires multiple washes to get any decent amount of product off.
I'm starting to think it's more a myth based on people who maintain their vehicles badly. Sure if you don't wax every month and after 6 months of no washes - dawn would be very harse on the clear as it's been exposed to the elements and probably has micro surface abrasions thereby allowing the acidity of Dawn to effect the clear significantly with repeated washes.
For a highly maintained car or even one with has been taken care of several times a year - I highly doubt it effects would be noticed - if it even does anything.
Using a something along the line of a APC+ would be more appropriate in my opinion or Prepsol. :up
Paco