We recommend using our Super Cleaner as it was formulated to safely clean these surfaces.
But if you're not going this route, using a mixture of Isopropyl alcohol and water is the safest and best way.
(google IPA solution for detailing)
Here is one article I've found: http://www.detailedimage.com/Ask-a-Pro/ask-a-pro-the-isopropyl-alcohol-ipa-wipedown/
And make sure to use hard scrubbing action to get it cleaned up good :)