[arcosine]

Age is a perspective.

Cool, the skinnier tire has lower RR and I can say by experience that its gets better MPG and certainly coasts further. The 185/65R15 does handle much nicer, though. I was considering the Federal 185R15 (185/80R15) tire but am concerned over lugging the Saturn engine up hill on the highway (2040 rpm @ 65mph, max torque is at 2200 RPM). My experience with other vehicles has been positive with larger tires sizes, 1968 bug with HR7815 (35 mpg avg, 40 mpg hwy), 1972 Datsun with 195/75R14 rear tires), 1977 Honda Accord with 185/80R13 (50 mpg avg)(155R13 stock). Going from 185/70R13 to 195/75R14 gave 1.5 mpg gain on 1987 Honda Accord.