I've always followed what VW puts on the sticker by the driver's door - as long as it's in line with tire specs.  Hope that's right?
Jeff85 Westfalia GLpersonally over inflated

> Date: Fri, 21 Nov 2014 09:42:44 -0800
> From: dn92610@GMAIL.COM
> Subject: Re: Nokian tire sidewall cracks
> To: vanagon@GERRY.VANAGON.COM
> 
> the shop recommendation is wrong - you should have at least 45psi in Front
> (minus 20psi from max) and 50psi on Rear (minus 15psi from max)
> 
> or 50psi in Front (minus 15psi from max) and 55psi on Rear (minus 10psi
> from max)