Synthetic VS. Regular oil reliability

[TheSilkySmooth]

Originally Posted by TheSilkySmooth

Let me know how it works for you ... I dont want to be alone in my AFE woes!

I just changed fuel from Shell where I had been getting a terrible 33 mpg ave over 3 tanks to Mobil. Mobil was crummy in the summer, but this batch seems very good and I know that the last batch of shell has been killing my mileage and causing all kinds of noise and driveability issues - suspect it was misformulated or had WAY too much ethanol in it. My 17 deg cold start on the mobil was "acceptable" and warm run just peachy! So at leat part of my perceived "woes" are due to fuel quality.