5W-30 ( according to the Owner Guide )
According to the 1999 Ford Ranger Owner Guide ( 5W-30 ) engine oil is used in the 3.0 and 4.0 liter V6 engines
Oil Pressure Sender and SwitchFord Ranger/Explorer/Mountaineer 1991-1999 Check Related Links below.
What is the best motor oil to use on a 1999 Chevy Malibu?
timing belt is a likely suspect.
motor oil
Can the oil pump be replaced on 1994 Ford Ranger 4.0 without pulling motor?
should be just above the oil filter
Use the manufacturer's suggested oil. If you have a turbo charged vehicle, synthetic oil will make it run cooler.
SAE 5W - 30 is the preferred oil
how to replace oil pump in a 1999 ford ranger xlt ext cab 4.0
On a 1999 Ford Ranger , 4.0 liter V6 engine : The engine oil dipstick is on the drivers side of the engine
A 1999 Mercedes E320 takes 8.5 quarts of oil. The oil in the vehicle should be changed every three months.