For a 2001 Ford Mustang :
With engine oil filter change :
4.7 liters / 5 U.S. quarts of engine oil ( 3.8 liter V6 and 4.6 liter V8 )
5W-20 ( according to the 2001 Ford Mustang Owner Guide )
According to the 2001 Ford Mustang Owner Guide ( 5W-20 ) With engine oil filter change : The 4.6 litre Single Over Head Cam , V8 engine , in a 2001 Ford Mustang GT takes ( 4.7 litres / 5.0 U.S. quarts of 5W-20 )
5 quarts
The owners manual shows ( 5 quarts ) WITH FILTER CHANGE
The 2006 Ford Mustang V8 engine take 6.0qts of oil
According to the 2001 Ford Mustang Owner Guide : With engine oil filter change : The 3.8 liter V6 engine and the 4.6 liter V8 engine take : ( 5.0 U.S. quarts of 5W-20 )
The Ford 3.8 liter V6 engine in a ( 2001 ) Mustang and Windstar models : Takes ( 5W-20 ) * With engine oil filter change , 4.7 liters / 5.0 U.S. quarts of 5W-20 )
take it to a mechanic
I believe it takes 5 quarts ( 4.7 liters ) with filter change
take it to a mechanic
take it to the dealer
Not directly, it will take a lot of modification, time and effort to achieve that swap.