second garage search on internet with the chassis number. went back to first garage agreed it was the wrong oil...

OK, I went to see my local mechanic (who I go to regularly) to do a full service...$500 later, I leave the shop with the car not feeling as smooth as before the service. I go back, but they cannot find anything wrong. I drive around, and notice white smoke coming out of the exhaust. 2 weeks later ...