4R70W with the 4.6 liter engine E4OD with the 5.4 liter engine
The 1997 Ford Expedition Owner Guide shows Motorcraft MERCON automatic transmission fluid ( it should show the type used on the transmission dipstick )
On a 1997 Ford Expedition : The 4.6 liter V8 engine uses ( 4R70W ) The 5.4 liter V8 engine uses ( E4OD )
I was looking at the 1997 Ford Expedition Owner Guide and it shows Motorcraft MERCON automatic transmission fluid for the two models of automatic transmission ( E4OD with the 5.4 liter ) I would also check to see if the type of fluid is engraved into the automatic transmission fluid dipstick
4R70W - with the 4.6 L engine E4OD - with the 5.4 L engine
On a 2000 Ford Expedition : The type of automatic transmission fluid to use should be engraved into the dipstick or on the dipstick handle
The 4R70W with the 4.6 L - V8 engine and the E4OD with the 5.4 L - V8 engine
R134a
The ( 1997 ) Ford Expedition Owner Guide shows ( 5W-30 )
R-134a
According to the owners manual, a 1997 Ford Explorer 5 speed manual transmission takes Ford Motorcraft Mercon ATF (automatic transmission fluid)
Mercon V
It depend on what oil do you like using. I personally used Castrol 10W40. On my 1998 Ford Expedition XLT.