Not Audi specific but I am conflicted (I don't buy the BS) about car
The question is: what is so special and different about the store
bought car wash products versus dish soap?
I keep hearing about how 'harsh' the dish soap is but comparing
cooking muck to road muck, I know the road muck is harder to clean.
For tar and real greasy stuff I use an orange based cleaner which
works much better than anything else. In fact, only the orange based
cleaner will do the job. I also use it on my bike, BBQ and any where
else grease and grime build up.
Anyway, so why would a car wash product be any less harsh or better
than dish washing soap? I am having a hard time buying into the
marketing. Soap is soap, pretty much.
Dish soap is pretty good at cleaning because it is a rather strong
detergent. Dish soap will strip carnauba wax, so if you just had your
car waxed, it'll be removed the first time you wash it with dish soap.
Most people like their wax to stay on little longer than that ;-)
Also, depending on how good/bad your water is, dish soap may cause more
water spots to appear.
Well, it all depends on how long you want your paint to remain as nice
as it was the day it left the factory. I suppose you won't see any
damage overnight, but over the years there could be a difference.
Car shampoo is better because it's milder and doesn't strip wax (at
least the good ones don't).
Most car wash products are designed to not only clean, but to take care of any
wax you might have already applied.
I have been cleaning Audi's and Porsches for more than 20 years. I have fallen
for every gimmick out there for cleaning/waxing/polishing them. If I didn't
buy it, my kids and grandkids gave it to me for my birthday or father's day.
However, I have bought my last car cleaning tool. It is Mr. Clean's AutoDry
car wash. It leaves a spot free surface every time, including windows.
If I haven't washed the car in awhile and it is very dirty, I will first go
over it with a car wash soap (Turtles works well), then I will soap it with the
Mr. Clean, rinse, and then go over it with Mr. Clean's mist rinse. No need to
hand dry. No spots *ever*. Just make sure you do it in the shade.
Water spots are exactly that -- water spots. The Mr. Clean gadget has two
filters that filter the water. I've never seen anything like it. It works!
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