Quote Originally Posted by Princess12
is it gas or diesel?
Gas
Quote Originally Posted by wannab20hatch
looks like its the gas engine. probably the triton. usually the v10's have an emblem on the fender and the powerstrokes have an emblem on the door. unless they were removed.
Gas engine. 5.4L

Quote Originally Posted by 03RCode
The 7.3L or 6.0L (Depending on when in 2003 it was manufactured) both hold WAY more than 8 quarts, so I'm assuming V10.

Beautiful truck, wish I had the $$.

Great seller also.
It is a 5.4L engine. So it's a fairly cheap vehicle to work on and parts are available everywhere.

-Ant.