Low oil pressure at stop light.

[Rustoleum Plymouth]

My 318 LA motor runs fine but at stoplights, the oil pressure gauge bottoms out. How can I remedy this?
Rustoleum Plymouth.

 

[GTX JOHN]

Not a lot you can do on a small block.
Try a heavier oil and perhaps put a aftermarket
oil pressure gauge on your car so you can see how bad it
actually is. You do not need a lot of oil pressure at idle but you
need some!

 

[Rustoleum Plymouth]

Thanks, I will try it.

 

[dd70340]

You didn't mention what type of gauge you have. If it's the factory electric gauge like the one I have on my rallye dash then you could have a bad oil pressure sending unit that's located near the distributor. I had a new Standard PS59 sending unit and the needle on the gauge would go to the bottom after my engine warmed up and the car came to a stop. I changed to a Standard PS59 T-series unit and the needle stays in the normal range all the time.

 

[Kendog 170]

I had a Demon with that issue years ago. The oil pick up was full of old valve seals.

 

[CRUZE 418]

He could have a stuck bypass also.

 

[Demonracer]

Or the OP could have and old standard volume pump that is worn out. They really didn't give us much of a story on the engine, so it comes down to us guessing.

 

[Inertia]

Change to 20/50 oil, or add a can of STP, or similar "honey" oil thickening additive .

 

[MOPAROFFICIAL]

How old is the engine, what oil pump, what viscosity oil are you running, does it detonate?