Got a strange one here, might just be me...........

'03 E250 5.4 motor with what I'm sure is the original engine oil dip stick and tube. I notice that between oil changes the oil on the stick never changes color or level--always showing slightly above full, same color as new fresh oil.

Wiping the stick and re-checking after sitting for several hours shows the same level and color.

When changing oil the amount is not six quarts although the oil filter is full.

Any ideas or thoughts?


TIA