Jim and I are on the same wavelength: When I use dino, I use Pennzoil.
My one piece of compelling anecdotal evidence is that full synthetic REALLY helps out dry starts on both my 2000 Honda Civic and my 68 Bird. An easily AUDIBLE difference.
At $1.00 more per quart, the Extended Life Mobil 1 seeems to be a good value over the "normal" Mobil 1.
I'm having a new engine put in my Bird. (Work should start on it in a few days.) AFTER the break-in period, what weight of Mobil 1 should I use? 10W-30? 10W-40?
