I remember back in 2005 I worked for Acura dealer.I know UV protection is the way to prevent cracking (garage, cover, sunshield, ...). My '79 280zx has a single small crack right in the middle. I actually bought a Covercraft soft cover to install. Before I install it, I was hoping to give it a good conditioning and rejuvenate it if at all possible. Google and site searches aren't turning up anything concrete.
What do you guys use to keep it conditioned and prevent cracking?
The black dashboards in the TL we’re returning white, they issued a service bulletin telling us to clean it using lexol leather conditioner, this is what I used one time on my 1975 crack free z dash .
I just keep it dusted now and I cover it with a soft dash cover when it’s out in the sun.