Poppy1
Of course you are right. I am dumping my wonder wheels.
I just found a report from ADAC (German equivalent of the RAC) on the issue which tranlates as:
1. Regular cleaning of the wheels avoids the dirt and brake dust from getting baked on too hard. The longer the dirt is on the wheels the harder it is to remove.
2. The majority of the deposit on the wheel is dirt, which can mostly be removed without a cleaner, just water and a sponge. The superficial cleaning with water and sponge or brush makes it easier for the cleaning product to get to work on the remaining hardened dirt.
3. Acidic wheel cleaners are significantly more aggressive than acid free cleaners. Because of this you shoud take care when using acidic cleaners. In addition to good protection for your hands (rubber gloves) it is sensible not to breathe in the spray when applying the product (do not use in closed rooms, consider the wind.) Eye protection is also recommended. The exposed metallic parts of the wheel bolts and brakes must be rinsed with plenty of water. It is better only to use acidic cleaners on wheels when off the car.
4. You cannot get wheels clean with liquids on their own. So you should always keep a brush or a sponge handy.
5. Although many wheel cleaners are rated in the water pollution class 1 wheels should be cleaned at a carwash with proper water disposal facilities.
Chivers '
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'02 A2 1.4TDi SE