here are the last few truck ive had
03 Sierra slt
04 Silverado Z71
same truck as above but added a yank 3600 stall, cam, and lt headers
dd 99 Tahoe LT
07 Vortec Max
on my 07 nnbs Vortec Max when the engine is at normal operating temp and at idle the oil pressure Gauge is just above 20 and cruising at 60mph it is just under 40. is this normal for a 33k mile truck?? every one of my other silverados have had just over 40 at idle and around 50 cruising