According to the 1996 Ford F-150 Owners Guide :
For the 4.9 liter / 300 cubic inch INLINE six cylinder engine :
( 10 W 30 is the preferred oil , but 5 W 30 can be used below - 5 * Fahrenheit )
Oil
( 6 quarts ) WITH FILTER CHANGE
Dexron ATF
a 1996 F150 ,4.9 L ( 300 cubic inch ) straight 6 takes 6 quarts ( 5.7 liters ) WITH FILTER CHANGE
Mercon 5 transmission fluid
10w30 is standard brand is up to you.
10w30
6 quarts ( 5.7 liters ) with engine oil filter change , according to the Owner Guide
The oil pan is bolted to the bottom of the engine and the drain plug is either on the bottom of the oil pan or on one of the sides of the oil pan at the bottom
5W-30 oil is used in the engines of a 1996 Ford Ranger
The 1996 F150 owners manual shows SAE 5 W - 30 for the 5.8 L ( and SAE 10 W - 30 for the 4.9 L straight six and the 5.0 L V8 )
5w-30