Quote:
Originally Posted by cullennewsom
There is volumetric expansion which is proportional to temperature. That fact does not necessarily imply that you can't check it cold, but the marks on the dipstick are calibrated for "operating temperature".
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And the FSM provides the necessary "adjustment" to those marks for alternative temperature conditions.
That said, hot and cold measurements on my 722.3 never seem to coincide with the FSM specifications.