When im stopped at a light or slow down considerably the oil gauge pointer flickers from 20-30, but then when i step on the gas the pointer holds steady at 40.

anybody have an idea whats causing this?

 

i believe its the sending unit

 

mine is "twitchy" too, it seems to give the correct read out while I'm on the throttle and goes back to shaking at idle

 

This. Glad I'm not the only one, now I feel less paranoid.

 

yeah me too lol...it seems like the gauge is working but has a short or something...anyone know if there is a fix to this?

 

It's normal for oil pressure to drop around 20-30 (depending on temperature) when stopping or slowing down and then increase under steady throttle. Steady throttle for me reads 45, WOT reads 60-70, and at idle (once warmed up) it reads 30-35.

 

I believe these guys are getting the whole "sweeping" motion at idle or stopping. The gauge twitches back and forth from a little below 20, to above 60. Mine does it too. But once hard on the throttle it shows correct pressure. Mine worked well when i first bought the car and has just recently started doing this.

 

stated above. the sending unit for the gauge can go bad over time, causing the fluctuating readout.

 

well up until today it was twitching from 20-30ish really fast when i was stopped somewhere. But today i seafoamed my oil, and it wasnt really twitching that violently when i stopped today, just a little bit . Idk, im gonna change my oil tomorrow and see how it acts then.

 

is this fixable without having to drain the oil from the car?