I put new oil in my nissan earlier today (5w-30) and as I was driving I started to smell what I thought was burning oil, and I noticed behind me excessive amount of smoke while driving. I went from 3rd to to neutral just to glide and smoke went away. The smoke was kind of thick but it dissipated pretty quickly. I am nervous I might have screwed something up.
Any ideas? I smelled the exhaust, no sweet smell (hooray I guess?) but I noticed the some old oil (or liquid soot maybe?) underneath the exhaust, I checked farther up see there was any oil leaking underneath the engine, and so far I didn't see anything.
If its not burning oil, I guess it could be condensation running down the pipe when I had the front elevated and burned? I doubt it thought cause it was a lot of smoke when I was driving home (mile or so)
Car: 1991 nissan sentra GXE