I was sitting in my car while it was idling and the car was parked, 2 mins later i put it into reverse
and notice in the mirror that when i gave it a rev to reverse there was white smoke from behind the car.
So i reversed out of the park and got onto the main road, there was still white smoke coming out the exhaust. I gave it a good boost in 2nd, a lot more white smoke came out, but then it stopped after that. I got home and let it idle for about 5mins and the gave it a few revs, but no smoke came out. This it the first time this has happened and it seems like its a once off. What caused this?