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Old 07-03-2019, 08:56 PM   #221
OldNuc
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Join Date: Apr 2008
Location: Far Southwestern Iowa
Posts: 66,689
 

1998 SC2
Default Re: and so it begins....

Quote:
Originally Posted by trottida View Post
Hmm, so how much of the 2 quarts of circulating oil to you figure is still in the process of draining (ie not in the oil pan) when you turn the engine off, fuel up and then measure using the dipstick?
When it is truly hot as you can see not much. The 3.8 and 4.2LJag XK engine dip stick informed you to wait 1 minute for drain back and it is also a DOHC engine. Most of the DOHC engines drain down rapidly. It is the condition of the oil level when the engine is running and the amount of oil in contact with the pan surface and the engine RPM as that determines the actual circulating flow. Some of the oil heat is also dissipated into the coolant.

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