Edmund A. Hintz writes:
> 
> At 9:02 AM 07/17/95, David Carment wrote:
> >pressure in relation to oil temp (IMHO). Haynes states that oil pressure
> >should be a  minimum of 28psi at 2000 rpm when the oil is 180F.If this
> 
>         Bentley says "On single caburator engines, the oil pressure at 2500
> rpm shuld be about 42 psi with SAE 30 oil at a temp. of 158 deg. F. On dual
> carb & fuel injection engines, the oil pressure at 2500 rpm shuld be at
> least 28 psi". As for the importance of pressure/temp. relations, I don't
> know, but it sounds reasonable to me. Anybody got any info to the contrary?
> 
Even the manuals don't agree! Perhaps the only defintive answer would be
to a) call up VW or b) take a sample of the list- even with 50 responses
the sample would be fairly accurate (95% + or - 5% points)....

BTW why would dual carb engines have different psi readings?

DC

PS Chilton's FWIW states oil pressure should be 42 psi on all 1600 cc
engines at 2500 rpm....but does not give a temperature at which the 
reading is accurate.