Had a bad turbo on my 07 F550 with a 6.0. Replaced it today and took her for a ride. Started smoking and oil was spitting out of the weep hole in the muffler. A lot of smoke. The truck was smoking before I replaced the turbo too but I didn't have any oil coming out of the weep hole. I'm hoping it is just oil that had been passed into the exhaust by the bad turbo that is now being burnt off and pushed out by the new turbo. Does this sound plausible?

 

Yep,thats what is going on, old turbo sucked it in and it builtup in the pipes,muffler and it will need to be drove awhile now to burn it out,i drove mine hard for 20 miles till it stopped smoking.