Anyone know if this is a cooling system related issue? I have a good bit of oil that has made its way across the engine block from leaks on the front I suspect, which I have the parts to fix and will as well, but started a coolant flush and turned the heater on to proceed. Noticed a good bit of white smoke from the back passenger side of the engine. Took a video. Any ideas? Just burning oil from the heat? Apologies if i missed a thread on this. Searched prior to asking. Thanks! Any idea how to post the video? Its an mp4 but wont ket me attach it.