Thread: Oil temp
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Old 12-27-2012, 08:33 PM   #31 (permalink)
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I run 5W20 in the Ranger and the Fiesta. I never let the engine run without getting moving. I will pulse and coast (engine on), even in the first .3 mile out of my neighborhood.
After sitting a week my 1937 Ford flathead coupe would produce 60 PSI of oil pressure in 5 seconds of cranking (it had a starter button for ignition off). Thats a direct drive 6 volt starter cranking at 100 RPM, less than 10 revolutions of the engine.
The cranking speed of most modern cars is about 300 RPM. which means you get the same pressure in 1/3rd the time, or less than 2 seconds.

regards
Mech

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