Lost my 04. 5 in head on collision
and need new dually, Drove a 6. 7 with 6 speed auto and was so smooth almost unbelievable. New Shell Rotella T meets the new guidelines for oil. Any suggestions or thoughts or warnings for me? Am going to have to order the truck. NO ONE has exactly what I want. Would be willing to wait for 2008 but can not get any info about options and such. Anyone know anything? Dealers sure as heck do not. 

