[mpg_numbers_guy]

Made another highway trip today, about 140 miles each way. Inflated tires to 68 PSI for the trip and pulled ~56 MPG both ways at 55-60 MPH. Lower than the 60 MPG from my New York trip, despite having only me in the car and the increased tire pressure. However I didn't have a tailwind like I did for my NY trip, and this road trip had more steep hills. Car coasted better on the highway with 68 PSI in the tires compared to 53 PSI from my NY trip; can't really compare with 60 PSI since I never did a highway trip with them at 60 PSI. On the highway with I did feel slight airplane-like turbulence on concrete if the wind blew just right, which I am attributing to having 68 PSI in the tires. Was going to let them back down to 60 PSI after my trip, but tomorrow--well today since it's after midnight--is my last day driving Silver Aero for 3 1/2 months, so heck, I'll save myself the trouble and leave them at 68 PSI.