According to the 2002 Ford Mustang Owner Guide :
With engine oil filter change :
The 3.8 liter V6 engine takes ( 4.7 liters / 5.0 U.S. quarts of 5W-20 )
According to the 2002 Ford Mustang Owner Guide : With engine oil filter change : The 3.8 liter V6 engine takes : ( 5.0 U.S. quarts of 5W-20 )
5 quarts ( 4.7 liters ) WITH FILTER CHANGE
6 quarts ( 5.7 liters ) WITH ENGINE OIL FILTER CHANGE according to the 2002 Ford Mustang owners manual for the 4.6 liter - SOHC - V8 engine in the GT
The 1999 Ford Mustang Owner Guide shows ( 5W-30 ) for the 3.8 liter V6 and the 4.6 liter V8 engines
5 w 20 ( according to the owners manual )
According to the 2002 Ford Mustang Owner Guide : With engine oil filter change : 5 quarts ( 4.7 liters ) for the 3.8 liter V6 engine 6 quarts ( 5.7 liters ) for the 4.6 liter V8 engine
According to the 2010 Ford Mustang Owner Guide ( 5W-20 ) is used in the 4.6 liter V8 engine
According to the Owner Guide , the 4.0 liter V6 takes ( 5W-30 )
5W - 30 ( according to the 2000 Ford Mustang Owner Guide for the 4.6 liter V8 engine )
We would need to know if you have the 3.8 liter Essex v6, the 3.9 liter Essex V6, or the 4.6 liter SOHC 2v V8 in order to answer this question.
NONE, because there is no such thing as a 2002 Mustang Cobra.
I looked up both the ( 1996 and 2002 ) Ford Mustang with a 3.8 liter V6 on fordparts.com and it shows the ( Motorcraft FL-400-S engine oil filter )