You can use either 10W30 or 5W30 motor oil or if you wish you can put synthetic oils in it too using the same grades 10w30 or 5w30
At the bottom of the engine oil pan.
According to the ( 1996 ) Ford Escort Owner Guide : ( 5W-30 is the PREFERRED oil )
On the bottom of the oil pan under the car.
5 w 30 - according to the 1998 Ford Escort owners manual
SM rated 5W-30 weight of oil.
5w/ 3o is the correct oil type...
1990 ford escort how many quarts of oil
4 quarts with a filter change.
5-30 weight rated SM
It takes 5-30 oil weight and rated SM
According to the 1997 Ford Escort owners manual ( 5W-30 ) certified for gasoline engines
For a 1992 Ford Crown Victoria : It came from the factory with the PREFERRED oil ( 5W-30 )