Well... there can be differences in the gauges...

but on my 90 Westy Syncro I get about 30 psi at 2000 rpm with 15 - 50
synthetic oil at operating temperature (middle of stock gauge).

Bill

----- Original Message -----
From: "Mike Catlin" <mjcatlin@POSTOFFICE.PACBELL.NET>
To: <vanagon@GERRY.VANAGON.COM>
Sent: Thursday, September 28, 2000 8:53 PM
Subject: Oil pressure standard -- 13.1 or 29 PSI?

> I installed an oil pressure gauge on my 89 GL and
> I measure 22 PSI at 2000 RPM after a warm-up by
> driving 20 miles at 65 MPH.  I am using Castrol
> 20W-50.  At present I have no way to measure oil
> temperature, but I will work on that.
>
> The Bentley manual says at 2000 RPM and 176
> degrees F, the minimum pressure should be 29 PSI.
> However, the low oil pressure warning buzzer is
> not supposed to sound until 13.1 PSI.  This seems
> contradictory, unless 29 PSI is actually the
> minimum standard for a new engine.
>
> What minimum pressure, at the stated temperature
> and RPM, do you accept as normal in an apparently
> healthy 2.1 waterboxer?  What pressure do list
> members observe in new engines?
>
> Mike <mjcatlin@pacbell.net>
> Davis, Calif.
>