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fredzy · 08-03-2022, 10:02 PM

It’s wind. I once got like 38mpg heading East with a strong tailwind for ~300 mi through Ohio in my WRX, which usually is Just over 30. It’s basically 95% of what the car is fighting at high speed, greatly outweighs rolling resistance.

08-03-2022, 10:02 PM	#2
fredzy Mebmer Join Date: Nov 2021 Drives: Sienna, GR86, TourX Location: PA Posts: 655 Thanks: 418 Thanked 492 Times in 304 Posts Mentioned: 12 Post(s) Tagged: 0 Thread(s)	It’s wind. I once got like 38mpg heading East with a strong tailwind for ~300 mi through Ohio in my WRX, which usually is Just over 30. It’s basically 95% of what the car is fighting at high speed, greatly outweighs rolling resistance.