To close off the Gyeon Tire Cleaner review above:
I started off with a fairly clean wheel. It did have dressing on it prior.
Even under these circumstances (and having had a go at it with a washer), a little agitation revealed quite a bit of dirt being released from the tyre
There is no filter or anything special applied to this pic. It is returned to the original finish including the ‘soft/satin’ finish that you get on higher end Michelin tyres. I also used VERY LITTLE product to get this result and all I used for agitation was a little Mother’s detailing brush – no scrubbing or elbow grease at all.
My tyres are usually quite clean… I would love to try this on @Nick 320i who has an issue with embedded dirt in his tyres.
I thought I would also just quickly show how a low concentration of Gyeon Foam with the Karcher Canon I mentioned earlier goes on (consistency wise):
and how it clings after several minutes of sitting: This is a factor for pre-washes in general – some go on quite thick but have almost no dwell time.
an excuse to post two finished pics (just washed this time – detail coming soon)