Oil change question

[911monty]

Originally Posted by RobertKing

While it's true that the gauge can be misleading, the dipstick is even more so. If the engine is cold, what you read at the stick, is a good measure. If it's hot, it's no more accurate than making a guess. Also, the stick does not measure what is or is not in the oil filter. Yes, the stick is a safer bet but, it's still a bet.

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????