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arcosine · 12-24-2010, 08:39 PM

I changed out the front wheels, 40 psi cold.

185/65R15 vs 165/80R15 (165R15)

The 165/80R15 tires give 70mph on the GPS at 65 mph on the speedometer or 7.7% increase. The car seems to slow up hill, but considering a head wind and 450 lb weight of passengers, not too bad. You defiantly want to drive slower with the skinny tires, since the car doesn't handle as well as the 185/65R15 tires. It seems to coast really far, though. Almost down to 1/4 tank.

12-24-2010, 08:39 PM	#11 (permalink)
arcosine Master Ecomadman Join Date: Nov 2010 Location: Chicago area Posts: 1,154 sc1 - '98 saturn sc1 Team Saturn 90 day: 43.17 mpg (US) Airplane Bike - '11 home built Carp line Tour rans - '97 rans tailwind tractor - '66 International Cub cadet 129 2002 Space Odyssey - '02 Honda Odyssey EX-L 90 day: 28.25 mpg (US) red bug - '00 VW beetle TDI big tractor - '66 ford 3400 red vw - '00 VW new beetle TDI 90 day: 58.42 mpg (US) RV - '88 Winnebago LeSharo 90 day: 16.67 mpg (US) Thanks: 20 Thanked 337 Times in 227 Posts	I changed out the front wheels, 40 psi cold. 185/65R15 vs 165/80R15 (165R15) The 165/80R15 tires give 70mph on the GPS at 65 mph on the speedometer or 7.7% increase. The car seems to slow up hill, but considering a head wind and 450 lb weight of passengers, not too bad. You defiantly want to drive slower with the skinny tires, since the car doesn't handle as well as the 185/65R15 tires. It seems to coast really far, though. Almost down to 1/4 tank. Last edited by arcosine; 12-26-2010 at 12:10 AM..