Hello everyone!! I'm new to the whole automotive repair business ( if those are even the right words) and could use some help. I recently put a new motor in a 2006 ram 1500 with a 5.7 hemi, he old motor was shot so got a used 07 to throw in there. Everything fits and runs and idles great, but after driving on the interstate for more then 15 mins a couple of times, I noticed smoke coming from the engine compartment, so it appears that somewhere somehow oil is leaking onto the exhaust manifold, if anyone could help I'd be extremely grateful. ( This is a photo of what I believe is the exhaust manifold where the light is showing looks like oil build up, but I'm not for sure)

 

Probably leaking from the valve cover.

 

I'm thinking the same thing I'll check em and tighten em down. Thank you!