Posted this in the V8 Modular Motor forum but no replies---thought this wise bunch might have an idea:

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

 

I have zero experience with the 5.4L engine, but quite a bit of experience with Ford 300 and 4.9L truck engines. All have been original [one bought new] and all have not read correctly on the dipstick.

For the oil level issue, you can "custom calibrate" your dip stick. Remove the oil filter and drain the crankcase completely [take a break and get something to eat!]. After replacing the oil filter, add 1 quart less than what the manual calls for [i.e. 6-1=5] and start the engine. Check for leaks and then shut off and allow all the oil in the engine to drain back into the crankcase [take another long break!]. Remove the dip stick, wipe and reinsert. Carefully withdraw the dip stick and with a file, place a mark across the dip stick at the top of the oil level. This will represent a true "1 quart low" level for your engine and dip stick. [I make this mark across the backside of the dip stick]. Before reinserting, carefully clean the dip stick to prevent contamination with metal filings.

Next, add the final quart of oil and restart the engine. Again, shut off the engine and allow plenty of time for all oil to drain back into the crank case. Repeat the above process and make another line at the top of the oil level and this will represent the "full" level.

As to your observations regarding the non-changing color of the oil, I must assume that you have a clean engine and that it is running very well with no short trips. Be thankful and maintain whatever you are presently doing!