I went to autozone today and picked up 9 bottles of mobil 1 synthetic 0w20, and I changed my oil this evening. I took my car for a test drive to see if it helped and I'm afraid to say that it didn't, and may smoke even more. I'm going to give it a few more days of driving and see if it's better or worse. But at this point it appears that my theory that a thinner oil may help was wrong.