Most all Ford Vans, including the 5.4L require a 5w-20 oil. I ALWAYS recommend Motocraft Oil (Ford)
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According to the ( 1999 ) Ford E-250 Owner Guide ( 5W-30 )
With engine oil filter change :
The 5.4 liter gasoline V8 engine takes ( 5.7 liters / 6.0 U.S. quarts of 5W-30 )
* the first answer is not mine , the 2nd answer is , Helpfull *
Bottom side of engine.
WHERE is the blower motor fuse on a 1999 ford e250 4.2 L
Where is the computer located in the 1995 ford e250 4.9l engine
where is the crank sensor located on a ford e250 1999
On a 1999 Ford E-250 , 5.4 liter V8 engine : 4 - 8 3 - 7 2 - 6 1 - 5 front of vehicle
It is important to know what type of oil an engine takes. For this engine, it will take 5w-20 and 5w-30 Engine oil depending on the year model.
inside the tranny pan
on the throttle body
Either your emergency brake is engaged or the brake fluid level is low in the brake master cylinder in your engine compartment
The service engine soon on a Ford E250 can be reset by connecting an OBDII code reader to the vehicle. It allows codes to be read and reset.
Aprox curb weight, 4750 lbs depending on if it is an E150, E250, E350, engine size, wheel base and accessories.
5,340 lbs according to uhaul.com