"Idiot light" vs. Oil Pressure Gauge

George Jets said
Here is an oil pressure gauge Plumbed in along with the working electric dash gauge and idiot light. So that is actually showing 3 ways to see oil pressure.

Always like a gauge to be able to see the real pressure.

View attachment 1716308724

'89 D100, 318

☆☆☆☆☆

That is alot of weight vibrating on a tiny 1/8" thread.
I think a better mouse-trap would be to mount gauge and sender on the firewall, and run a line from the engine block up to the gauge.