2000 Durango 4.7

1st . Once the truck gets running I have smoke coming out my heater vents. Does not smell sweet as far as I can tell.

2nd.
I have white smoke coming out of my tailpipe when I start the truck, and when I take off fast . When at idle I have no smoke and during daily driving I have no smoke. My antifreeze is at the same level I have kept it at . This symptom has been happening atleast a year.
My truck does burn oil , It always has , Bought it at 100k , popped a motor on day 2 , replaced motor and about 10k miles after that it started burining about 1qt between changes. Now has 150k miles on it
Also I have a small amount of white smoke coming from near the manifold , could be because I recently spilled oil all over the damn place fixing something else.

Any ideas or help appreciated !

 

You have to remember your heater/ac draws air under your wipers. It may be drawing the burnt oil. Try to get that issue fixed as if not now, with buildup the oil could ignite.

 

Most likely bad valve cover gasket or intake manifold gasket.