According to the 2003 Ford Expedition Owner Guide it came from the factory with :
Motorcraft Premium Gold Engine Coolant ( yellow - colored )
Meeting Ford specification ( WSS-M97B51-A1 )
The 2003 Ford Expedition has single overhead cam (SOHC).
5W-20 ( according to the 2003 Ford Expedition Owner Guide )
According to the 1999 Ford Expedition Owner Guide : It came from the factory with a 50 / 50 mix of distilled water and GREEN color antifreeze ( meeting Ford specification ESE-M97B44-A )
Green
The 1997 Ford Expedition came from the factory with a 50 / 50 mix of distilled water and ( GREEN color antifreeze , meeting Ford specification ESE-M97B44-A ) in the engine cooling systems
According to the 2003 Ford Expedition Owner Guide : ( " regular " unleaded , 87 octane )
Motorcraft Premium Gold Coolant- dealer only item
According to the 1997 Ford Expedition Owner Guide : It came from the factory with a 50 / 50 mix of distilled water and GREEN color antifreeze ( meeting Ford specification ESE-M97B44-A )
According to the 1998 Ford Expedition Owner Guide : The engine cooling system came with a 50 / 50 mix of distilled water and GREEN color antifreeze ( meeting Ford specification ESE-M97B44-A )
R-134A
According to the 2003 Ford Expedition Owner Guide : ( " regular " unleaded gasoline , 87 octane , is used in the 4.6 and 5.4 liter V8 engines )
According to the 1999 Ford Expedition Owner Guide : It came from the factory with a 50 / 50 mix of distilled water and GREEN color antifreeze ( meeting Ford specification ESE-M97B44-A ) in the engine cooling system