the best oil to use in any diesel is ROTELLA there are now several grades of rotella, but i still stick with the original rotella.this can usually be purchased anywhere that engine oil is sold
7.3 liter cummins turbo diesel
Amsoil
15 quarts
6.9 liter diesel
7.3 liter diesel
In my 1986 F350, I replaced a the 6.9 diesel engine with a 1989 7.3 diesel engine. Everything fit. BUT I had to used the glow plug system from the 6.9 system
According to the 1999 Ford F-350 , 7.3 liter Diesel Supplement : With engine oil filter change : ( 15.0 U.S. quarts ) * the Motorcraft engine oil filter holds 2 quarts of the total oil
The diesel engine available in the 1984 Ford F-250 is a : ( 6.9 liter / 420 cubic inch / V8 diesel )
This is the USA we con't have Ford transit diesel vehicles here.
Ford: 7.3 diesel fuel getting into the radiator
I was looking at the 1999 Ford F-250 Super Duty , 7.3 liter Diesel Supplement and it shows : With engine oil filter change : ( 15.0 U.S. quarts )
A 1999 Ford is fuel injected, it does not have a carburetor.