WD-40 lang katapat nyan, plus soap and toothbrush.

I don't know about the others, but Armor All works for me. The dashboard on my 1996 Sentra has been protected by Armor-All since the day I bought it, and my dash looks like new. No cracks or discoloration whatsoever. Actually, I get a lot of praise pa nga, kasi pati yung door sidings ko, parang bago, protected din by Armor All.

Yung 1980 Galant ko din nun (nabenta na), makintab at maganda rin ang dash. Armor All din ang gamit ko.