What kinda oil pressure are you guys seeing?? Mine runs about 29-30psi at idle(warm) and about 60psi @ 2000ish rpms. Does that sound right?

well within spec.......here is GM's actual spec sheet.



<TABLE width="100%" border=1>
<T>
<TR>
<TD colSpan=3>


Lubrication System</TD></TR>
<TR>
<TD vAlign=top align=left>
<UL =NONE>
<LI>Oil Capacity - with Filter </LI>[/list]</TD>
<TD vAlign=center align=middle>


10 qt</TD>
<TD vAlign=center align=middle>


9.5 L</TD></TR>
<TR>
<TD>
<UL =NONE>
<LI>Oil Capacity - without Filter </LI>[/list]</TD>
<TD vAlign=center align=middle>


9.2 qt</TD>
<TD vAlign=center align=middle>


8.7 L</TD></TR>
<TR>
<TD>
<UL =NONE>
<LI>Oil Pressure - Minimum- Hot - at idle </LI>[/list]</TD>
<TD vAlign=center align=middle>


98 KPa</TD>
<TD vAlign=center align=middle>


14 psi</TD></TR>
<TR>
<TD>
<UL =NONE>
<LI>Oil Pressure - Minimum - 1800 RPM </LI>[/list]</TD>
<TD vAlign=center align=middle>


294 KPa</TD>
<TD vAlign=center align=middle>


42 psi</TD></TR>
<TR>
<TD>
<UL =NONE>
<LI>Oil Relief Valve Opening Pressure </LI>[/list]</TD>
<TD vAlign=center align=middle>


441 KPa</TD>
<TD vAlign=center align=middle>


64 psi</TD></TR>
<TR>
<TD>
<UL =NONE>
<LI>Piston Cooling Jet Valve Opening Pressure </LI>[/list]</TD>
<TD vAlign=center align=middle>


196 KPa</TD>
<TD vAlign=center align=middle>


29 psi</TD></TR></T></TABLE>

Yeah, what he said ^


D

thanks for the quick response.

Mine was only carrying about 40-45 at 70 mph, so I disconnected my bypass filter and put a gauge on the end of the hose. When I checked it, it showed 60 when the dash gauge showed 45. I'll get the sender changed sometime when the truck needs to go in for something else.