10w30
According to the 2006 Ford Mustang owners manual ( 5W-20 engine oil ) is used in the 4.6 liter 3V engine
5w30 pennzoil ultra or mobil 1 5w30 -use only synthetic oil
According to the 1997 Ford Mustang Owner Guide : ( 5W-30 engine oil is PREFERRED ) * with engine oil filter change , the 3.8 liter V6 engine takes ( 5.0 US. quarts / 4.7 litres of 5W-30 engine oil )
5W - 30 ( according to the 2000 Ford Mustang Owner Guide for the 4.6 liter V8 engine )
4.5 quarts with engine oil filter change
10w30 the recommended weight.
V6 Engine: 5W-30 V8 Engine: 5W-20
For a 1996 Ford Mustang , 3.8 liter V6 engine : The owners manual shows ( Motorcraft FL-400-A) engine oil filter fordparts.com shows ( Motorcraft FL-400-S ) engine oil filter
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
My ( 1991 ) Ford Mustang 5.0 LX came from the factory with ( 5W-30 )
According to the 2009 Ford Mustang Owner Guide : The 4.6 liter , 3 valve , SOHC , V8 engine takes the : ( Motorcraft FL-820-S engine oil filter )