I currently have a Grey WRX (Waiting on my Skoda Yeti). I use Meguiars Deep Crystal, Wet Look every 3 months or so. Quik Wax spray after I have washed with Ultimate Wash n Wax and chamiosed it dry every 2 - 3 weeks. It's kept it looking good.
When i've been lazy and left it over 6 months between polishing, I've use quick clay to bring it up schmik. God knows why they call it quick because while it's very good, quick it is not. It can take me 3 days from wash to finish.
I've kept thise process since new and when I have it really cleaned up I still get asked by non car savy people "Is it new".
There is probably better stuff than Meguiars but I have used it since I was 16 (over 20 years) and it's always been reasonable. I stuggled to use some of there carnauba wax products. I just checked there website and it seems they have dropped some products. The Deep Crystal range used to be 3 parts, Paint Cleaner, Polish, Wet Look. I had bought and tryied the first 2 but never really saw the need. They seem to have dropped them now.
Happy Days.
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