Depending on the year, cab options, and engine, anywhere from 5500 to 9000 pounds.
It depends on year, because there was a light duty F250 prior to the latest series of Super Duty (F250+) which started in 1999. There is a huge difference in frame/driveline between an F150 and the F250/F350. 1999 to 2004, the difference between the F250 & F350 was minimal, the GVWR of the 250 was 8800lbs & the 350 (not dually) was 9900lbs. 2005+ saw the GVWR's increase significantly. The dry weight of a crew cab diesel F250/F350 with 8' box and 4x4 is in the mid 7000lbs range. The F150 SCREW (not sure on this) would likely weight in the mid 6000's. Ton's of other differences but too much to get into here.
75-140 synthetic
I found somewhere that the 1973 Ford F250 Ranger XLT with a longbed and 390 V8 has an unloaded curb weight of 4,500 lbs.
The 1991 Ford F250 extended cab pickup truck, with a V8 diesel engine, curb weight is listed as 4620 pounds. The curb weight includes all of the fluids
The heaviest gooseneck hitch for a Ford F250 Super Duty I could find was 30,000 pounds. I found this hitch at Hitches4Less.com - http://hitches4less.com/goosneck-trailer-hitches.html
11 quarts
5000 lbs mine says...its a 1990
i believe its a 4 inch. i just recently bought a 74 f250
a standard f250 pickup is a 3/4 ton pickup,so the weight would be 3/4 of one ton
I have a 1996 f250 with a 5.8 engine. i was wondering if anyone knows how much power a 2001 f250 with a 5.4 egine makes
I have a 2002 f250 8' bed extended cab 4wd. Wieghs around 7400 lbs
5000 lbs. !!!!!! Just had mine weighed to win a bet :)