Gas and white smoke coming out of tail pipe

Have the same problem on a 1994 and when you check the liquid at the exhaust it is fuel. Water level is fine. Changed oil no coolant in the oil or at tail pipe.

Here recently I have been noticing, when I crank my 01 Nissan Maxima, there is a cloud of white smoke and it flows the whole time the car is on, running or stopped. The smoke is grey to black when revving engine. There is also a spray paint smell and a kind of sweet smell, thats the only way I know to describe it. I have heard this could be bad fuel or could be a blown head gasket. I had a Mitsubishi Eclipse that did the same thing and it was a blown head gasket. Both of these cars were used, so Im starting to think I got screwed. I knew about the Eclipse. I resold it as needing new motor. I dont know what Im going to do about the Maxi, if this is the problem, because of the year, I wouldnt ecpect the car to have this type of problem already. If so, sounds like someone was rough on it. Thank you in advance for your feedback!

Total bummer. Smell indicates head gasket, as does the smoke.
I HOPE I'M WRONG!
Joe

If the previous owner let the car overheat, it could be either a blown head gasket, or a cracked block. either one of those would let antifreeze into the combustion chamber and cause the white smoke.

https://www.2carpros.com/articles/white-smoke-or-steam-coming-from-the-exhaust-pipe

I have a 1998 infiniti i30 and got little gas where I usually dont get it the night before. Drove it home and about 10 miles the next day when it all the sudden it starts running really ruff and white smoke out the exhaust and it also smells really strong of fuel and even when car is off for the first few mins it trickles smoke out exhaust. Car doesnt run hot coolant is fine. Does anybody know what it could be?

I have put a bottle of heat in and a few days later a bottle of Lucas injector cleaner. No difference. The car isn't running hot and still runs good but misses bad. Check engine light flashes constantly. Put $15.00 worth of gas in and made it 27 miles. It's eating gas. It now kinda smokes under the hood now as well as exhaust. Smells strong so strong it burns your throat. Coolant level is fine and oil isn't milky looking. I just ran diagnostic test and it has a cylinder 2 misfire and knock sensor issue which knock sensor is detecting the miss. I'm a total loss to what it is.