My truck does not burn oil. But the valve seals do need replacing according to my mechanic. So the tail pipe blows a little white smoke when first starting the truck. Now that winter is here, warer drips from the tail pipe with the appearance of steam.

It probably isn't going to help much... Valvoline Max Life oil will help about as much as anything.. Is the smoking going away after a short drive and engine warms up?.. Unless it is continually smoking, using excessive amounts of oil or fouling spark plugs.. You don't really have to be too concerned about a little valve stem seal leak on a small block Chevy!!!.. That just insures the valve guides are getting lube!!.. Steam from pipe is not oil related.. Most likely from cooler ambient temps!.. IF it not presenting a real problem... Drive it!.. Just saying, I've been working on em 40+ years, if it helps!