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Old 01-02-2018, 10:36 PM   #14
RobertKing
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Join Date: Jun 2017
Location: Visalia, Ca
Posts: 136
Quote:
Originally Posted by 911monty View Post


How can a physical device taking an actual depth measurement of oil be misleading?

When the engine is cold and all oil has drained to the pan, is the ACTUAL measure. When hot, the measure on the dipstick is the operating level as the cylinder heads contain oil.

The oil filter is always 100% full so that is irrelevant after the first start after an oil change with a new filter.

The oil dipstick is a bet????

Yes, it's always a bet. Fluid dynamics come into play here. While the flow may be constant, the level within the filter is not. The best you can hope for is a close approximation of the current level. In plain language, a guess.
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