About 5qt. To be safe, fill with 4qt, and check dipstick. If more is needed, add 1/4qt. etc.
6 qt
According to the 2003 Ford E150 owners manual : 5.7 liters ( 6 quarts - U.S. ) with oil filter change
In a Ford E-150 : With engine oil filter change : The 4.2 liter V6 engine takes ( 6.0 U.S. quarts / 5.7 litres of engine oil )
Where is the engine oil cooler on a 1998 Ford Econoline van E150
if the water and oil levels are fine, then you may have a sensor going out
You need to remove the oil pan. Its bolted to the bottom of the engine
The most likely culprit is a blown head gasket.
About 1.25 liters of oil goes in the rear axle of a Ford transit. It takes 75W90 oil when you replace it.
With engine oil filter change ( 5.7 liters / 6 quarts ) according to the Owner Guide
The engine oil pan is bolted to the bottom of the engine
use straight 30 weight detergent
5.5 quarts