The car just had an oil change a week ago when I had the brake line (front right had a big leak), rear hub assemblies (ABS sensor was bad), pads and rotors all around (the girl before me drove it while they were down to nothing and cooked the rotors).
I only drove it once since the oil change so I am not sure there would be any other fluid in there but will have my boyfriend take a look, both at the oil and gaskets.
The smoke was a bluish-grey colour. It didnt smoke when it started up (although you could really smell gas), it only smoked when he punched the gas while it was in park and brought the RPMs to 5 or 6. He said it smoked when he let go of the gas after punching it. I didnt notice because it didnt take long before he had the RPMs up and when I looked over (was sitting in the passenger seat) after I smelled the gas, he had already let go of the gas and there was a cloud of smoke.
I didnt notice any smoke driving it Friday night, but he says thats because I wasnt rough with it and drove 55km max on the way back. He said it only smokes when you punch it or accelerate quickly/heavy (when you get the RPMs up).