caked

Hi, The dirt has been stuck on for I'm not sure how long, and I want to get it off. I last tried Mr Muscle Oven Cleaner, and even that didn't rid everything. What's a good product that will remove caked on dirt without damaging the wheels? Also that minimising elbow work! Thanks, R

so i've cleaned the car (pics later) but the wheels were heavily caked with brake dust. i tried turtle wax tyre cleaner, and Mr Muscle Oven Cleaner. Both shifted some dirt but required A LOT of scrubbing. I've heard Wonder Wheels is good for this sort of stuff. But is it something i can...