Can anyone please help me...I have 2005 Cambiocorsa Spyder and had an independent service shop do an oil change based on the instructions posted here. Now the cars check engine light is on. The exhaust smokes and the car says slow down when I am going up hill at 65 mph and starts slowing down by itself. I know the guy doing the oil change followed the instructions because I watched him and the instructions were pretty specific. I used 7.5 quarts of Mobil 1 5w 40, although on the oil it said good for diesel trucks. But the salesperson at Autozone said it should work fine.
I use Rotella 5/40 and it also says for Diesel Trucks. I have used the same Rotella on all my European Cars, so it's not the oil causing your issue. Very easy to overfill, I just did mine this morning and it was just a tad over the max line, still runs great and no CL.