i have a 2006 f250 5.4 3v and i took it to the dealership today for ym 3rd oil change because i wanted them to top off the fluids and check everything to make sure it is copisetic (or however you spell that word) any ways i put 7 quarts of oil in for the first 2 changes and it seems they only put in 6....whats the deal...

 

My 5.4 takes 6.75 quarts to reach the 'max' mark. Philip.