wheel cleaner

Wheel cleaners are very subjective - there are those people swear by, there are those people are told to avoid.

As a good all-round compromise, I've been using this below for about a year now.
AutoBrite Direct Very Cherry Wheel Cleaner



The most important thing is it's acid-free - so not only is it relatively harmless in comparison to your average wheel cleaner (Wonder Wheels, for example), but the strong fumes/odour aren't present.
It's a proven product that works very well, and is suitable for polished wheels too

You can buy it from various eBay stores - or simply google it