5.3L normal operating oil pressures?

FL335i · March 10, 2015

5.3L. What are you guys seeing for oil pressures? I'm seeing between 35-75. Normal daily driving around 40-45psi. Floored I'm seeing upwards of 70-75psi.

newdude · March 10, 2015

Right on the money.

haider320 · March 10, 2015

Normal

TeamSaris · March 10, 2015

Same for me.

Gmcant33 · March 10, 2015

X2

FL335i · March 10, 2015

Can't believe I started noticing that at 16k!

crafferty · March 10, 2015

5.3L. What are you guys seeing for oil pressures? I'm seeing between 35-75. Normal daily driving around 40-45psi. Floored I'm seeing upwards of 70-75psi.

Right on the money. My 2005 (5.3L) and 2014 (6.2L) are identical when it comes to oil pressure. Also, just a random fact GM from my understanding is the only truck manufacturer that actually uses real oil pressure sensor gauge. The other ones are suppose to be dummies that just react to the gas pedal or something. Our's actually react to the current pressure in the engine.

darkfox1 · March 10, 2015

I used to have a camaro that would run so rich I'd get gas in the oil, so I started paying very close attention to my oil pressure. As it thinned out from getting gas into it it'd start to drop. (I changed it every 1000 miles and it'd WREAK of gasoline and run out like water.)

You're right on the money of a fresh oil change in that car, and every not-worn-out car I've owned.

redwngr · March 10, 2015

Oil Pump

The oil pump design on these engines is a two-speed vane-type pump. Its dual-pressure control enables operation at a very efficient oil pressure at lower rpm, and then delivers higher pressure at higher engine speeds.

At temperatures of 32°F (0°C) or colder, when the engine has been sitting for a few hours, it is possible to have air enter the pump through normal oil drainback. Upon start-up, a short rasp sound may be heard from the front of the engine. It is most often heard during a remote start. This is a normal conditio