[wmjinman]

And the mpg is up, too! -60.5 mpg. In fact, it took less gallons to do this tank (10.609 gal. for 642 mi.) than the last one (10.79 gal. for 631 mi.) I was so scared I was gonna run out of gas, I was really sweating it heading to the gas station. If I'd known it was taking less gas than last tank, I coulda gone another 10 miles & made 650.

I changed the oil from 0w30 to 0w20 Mobil-1 about 150 miles before the end of the tank. I'm sure it's my imagination, but it seems to "feel" freer now & even seems to have more power going up hills. And, something I should have written down before, but I *think* it uses less fuel per hour when idling now - 0.13 - 0.15 gph idling when warm now - - - I think it was like - well - higher, before. Maybe 0.17 - 0.21 or something. ??? Damn, I wish I'd written it down...