Hi Steve:
I have a 428 Police Interceptor, built in 1992 by Danbury Competition Engines. I have an ERA with their standard for 1992 brass radiator cooled by one puller fan (thermostatically controlled switch) and augmented with two pusher fans (manually activated only).
In hot weather I run in the 170 to 180 F range with the puller causing the fluctuation as needed. In fourth gear with the engine revs low, at speed say 60 - 70 MPH the car will stay in the 165 to 170 range.
When I come down from a high speed run to a stop or at slow speeds ~ < 30 MPH, then the temp will climb to 185 or 190. I then will throw on the pusher fans (these, I have put on a separate circuit, Lucas Toggle switch activated) and they will reduce the temp rather quickly in conjuction with the puller fan.
My
oil temp gauge is always about 10 to 15 degrees lower than the water temp I have noticed. Pretty much hoovering in the 150 to 180 range.
What does your
oil temp gauge read?