Don you are talking about an inline 4 vw engine, specifically a 1.8, correct?
They have extremely different oil pressure characteristics than a wbxer and you may have just scared every wbxer owner with an oil pressure gauge that isn't maintaining 70psi on the highway. 

To any wbxer owner who is maintaining 70psi on the highway, I am scared for you and very confused. 

Wbxers, much like their air cooled counterparts, run oil pressures that make the rest of the world of "normal" engines cringe. 

-craig

> On Mar 2, 2014, at 11:13 AM, Don Hanson <dhanson928@GMAIL.COM> wrote:
> 
> 4.35 psi oil pressure would cause me to cringe!  No wonder they added an
> oil cooler to try to keep the oil a little more viscous on the later
> motors.  When I switched to the later filter housing that has the
> oil/coolant function my inline's oil temperature runs about 15-25f cooler
> at full power highway speeds... That brings my oil pressure up a little too.
> 
>  I've seen my oil pressure decline a few psi as my motor accumulates
> mileage.. but it idles at 23 hot still and between 60-75 at my cruising rpm
> of 3700 or 65mph~
> 
>  There is not any gauge or warning light that will overcome driver
> ignorance. How many stories are there of drivers ignoring the "cel"? There
> are shops who advertise they can "fix" that pesky Check Engine Light.... I
> see C.L. ads often selling vehicles that say something like.."the check
> eng. light has been on for years but the ---------- runs perfectly...."