I've had my porsche 3 years not done many miles as I've been doing it up .... but now I've finished .. took the car out other day and had to stop due to what I can only say is looked like car was on fire .. smoking like a steam train . a burning oil smell gutted isn't the word ... when I bought the car the guy had lots of money spent on the engine . now I haven't a clue what's up with it called the aa and he said not touching it as it's a porsche . started it other day seam ok went around the block 5 min and started again ...any ideas