My 95 runner on start up reads right in the middle on in dash guage, but once warm and at an idle it's burried at low? (engine 3.0) Should i change the pressure sensor? or is this just normal???

 

What weight oil are you running?

 

10w40 with a bit of lucas oil stabelizer... This is my first toyota and i wanna take good care of it.

 

I find 10W40 is about as light an oil as I can run in my '85 in the summer to keep the idle oil pressure up. I usually run 15W40 and that seems to work fine. Might also try hooking up a mechanical pressure gauge to verify the real pressure, maybe the factory gauge or sender is not reading right.