According to the 2003 Ford Mustang Owner Guide :
For the 3.8 liter V6 engine :
With engine oil filter change :
( 5.0 US. quarts of 5W-20 engine oil )
The 3.8 liter V6 engine in a 2003 Ford Mustang takes ( 5 quarts ) WITH ENGINE OIL FILTER CHANGE
that engine takes 5 1/2 quarts of motor oil
My 2003 mustang gt sump is 6 quarts
According to the 2003 Ford Mustang Owner Guide : For the 3.8 liter V6 engine : With engine oil filter change : ( 5.0 US. quarts of 5W-20 engine oil )
The 2007 Ford Mustang V8 takes 6 quarts of oil
5
the amount of oil that your suppose to put in is 5 quarts
5----- 1 for oil filter and 4 for engine
( 6 quarts ) with engine oil filter change on your 4.6 L - 2006 Ford Mustang
6 quarts of 5W-20.
According to the 2003 Ford Mustang SVT supplement : With engine oil filter change : The supercharged 4.6 liter V8 engine in the Cobra takes : ( 6.0 US. quarts of 5W-20 engine oil )
According to the 2003 Ford Mustang owners manual : With engine oil filter change : The 3.8 liter V6 engine takes ( 5.0 quarts / 4.7 liters of engine oil )