3.9L holds 4.5 quarts
5.2L and 5.9L hold 5 quarts
8.0L holds 7 quarts
Diesel holds 12 quarts
If you change the filter with a 3.9 engine it is about 4 quarts, 5.2 and 5.9 is about 5 quarts. If you don't change the filter add about 1/2 a quart less
6 quarts with engine oil filter change
6 quarts with filter change
5 with a new filter
With filter change it is 5 quarts.
The fuel filter is located in the gas tank.
The 1998 Ford Mustang owners manual shows ( 5 quarts ) WITH FILTER CHANGE
4.7 quarts with filter change.
( 6 quarts with filter change ) according to the owners manual
( 6 quarts ) with engine oil filter change ( according to the 1998 Ford Expedition Owner Guide )
6 quarts with filter change
V6 engine is 4.5 quarts