1931 flamingo
Well-known member
Getting ready to spend some Christmas present money. For late 31 which is more appropiate for add on gauges : APCO, Rex-A-Co??? 



Thanks in advance.
Paul in CT
Thanks in advance.
Paul in CT
I installed a (REX-A-CO) gauge a couple weeks ago. Installed per instructions from an earlier post. Gauge seems to work just fine. About 7# pressure when you first start up on a slight rev, but as oil gets warmer it goes down to just above readable when cruising at about 45mph. Is this about what other's have encountered with oil pressure gauges? Thought this was an appropriate question to go along with original post.
That's how mine performs in the summer with SAE 30 non-detergent oil. Since I switched to Mobil 1, I get a pound or so more pressure when the engine is warm. May be someone who knows about these things can explain the difference.I installed a (REX-A-CO) gauge a couple weeks ago. Installed per instructions from an earlier post. Gauge seems to work just fine. About 7# pressure when you first start up on a slight rev, but as oil gets warmer it goes down to just above readable when cruising at about 45mph. Is this about what other's have encountered with oil pressure gauges? Thought this was an appropriate question to go along with original post.