@marlinjack posted:...The Engine Oil Gauge 'Digital', was Blinking, meaning the Oil temperature had gone beyond the Sender and gauges Limit of 250F*. When I turn on the Rear Oil Cooler FAN The Temp comes down to 230F- and the Gauge has stopped Blinking.
NOTE: I have the Fan Back to blowing Through the Cooler and OUT the Back of the Grill. I tried reversing to Draw Air IN from behind the Vehicle and The Cooling was ineffective, Zero!
Proof: The Fan Mounted on the cooler can NOT Draw air through the Fins (from Outside-In), AS Efficiently as the Fan Blowing air Onto The Cooler and then Through the Fins. Because the Air Cools 'All Around The Cooler Case' and through the Fins.
MJ
* No telling How Hot the Oil Got...the Gauge just stops Registering Beyond 250F. And that's with Valvoline VR-1 20W-50
I am going to have to disagree with you about a rear mounted oil cooler and its air flow direction. I have had a rear mounted oil cooler on my car for years and it works quite well. The fan is thermostatically controlled to come on when the oil going into the cooler gets to about 180 degrees. The oil cooler fan is shrouded, so the air can not bypass the cooler fins. Many times on a hot Arizona day the oil cooler fan will come on and then shut off. I have an oil temperature gauge inside the car and a light that comes on when the oil cooler fan is running. The fan cycles on and off at 75 and 80 mph highway speeds, which tells me that the cooler is getting enough air flow. I always have the rear trunk liner installed, which by factory design was the way the air conditioning condenser worked with air being pulled in rather than blown through. Some car owners have done tests that show that beyond 100 mph the stock rear condenser design does not work because there is a vacuum being created at the rear of the car. Many owners don't like to drive their Pantera with the trunk liner installed and by blowing through the condenser it might make sense to reverse the cooling fan direction and blow through it.