Does anyone know about cars?
After fueling up today my fella went on the motorway to get home and coming off the roundabout a hugh puff of white smoke came out of the exhaust

, he said the engine went a bit slugglish for a few seconds then the smoke happened.
Everything is fine now, no smoke and the car is driving perfectly, so he was wondering what it could have been, I said it could have been a bit of **** in the tank, because it was nearly empty when he filled up

.....any ideas
