5 quarts... for liter of engine is 1 quart.
So pour 4.5 in then check ten mins later.. if needed add the other half
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According to the 2002 Ford F-150 Owner Guide :
With engine oil filter change :
The 4.6 liter V8 engine takes ( 6.0 U.S. quarts of 5W-20 )
According to the 2002 Ford E-250 Owner Guide : With engine oil filter change : ( 6.0 quarts ) for the 5.4 liter V8 engine
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 )
According to the 2002 Ford Focus owners manual : With engine oil filter change : The 2.0 liter Zetec engine takes ( 4.25 liters / 4.5 quarts ) The 2.0 liter SPI engine takes ( 3.78 liters / 4.0 quarts )
With engine oil filter change : The 2.3 liter , 4 cylinder engine takes ( 4 quarts ) The 3.0 liter , V6 engine takes ( 4.5 quarts ) The 4.0 liter , V6 engine takes ( 5 quarts ) According to the Owner Guide
According to the 2002 Ford Escape Owner Guide : With engine oil filter change the 3.0 liter V6 engine takes : ( 5.5 quarts )
According to the 2002 Ford Windstar Owner Guide : With engine oil filter change : The 3.8 liter V6 engine takes : ( 5.0 U.S. quarts of 5W-20 )
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
( 5 quarts ) with engine oil filter change
5 quarts ( 4.7 liters ) with engine oil filter change
According to the 2002 Ford Focus owners manual : With engine oil filter change : The 2.0 liter SPI engine ( SOHC ) takes ( 4.0 quarts ) The 2.0 liter Zetec engine ( DOHC ) takes ( 4.5 quarts )
With engine oil filter change : The 4.0 liter V6 engine takes ( 5 quarts / 4.7 liters ) The 4.6 liter V8 engine takes ( 6 quarts / 5.7 liters )
According to the 2002 Ford Taurus Owner Guide : With engine oil filter change : The 3.0 liter " Vulcan " V6 engine takes ( 4.25 litres / 4.5 U.S. quarts ) The 3.0 liter " Duratec " DOHC , V6 engine takes ( 5.2 litres / 5.5 U.S. quarts )