View Single Post
Old 11-17-2014, 03:03 PM   #16 (permalink)
KROHN27
EcoModding Lurker
 
Join Date: Mar 2014
Location: NC
Posts: 22

EG6 - '95 Honda Civic VX
90 day: 50.1 mpg (US)

Clownshoe - '00 BMW Z3 Coupe
90 day: 27.92 mpg (US)

M3 - '95 BMW M3
90 day: 24.39 mpg (US)

M Coupe - '99 BMW M Coupe
90 day: 22.67 mpg (US)

Z3 Coupe - '01 BMW Z3 Coupe
90 day: 26.24 mpg (US)

E90 M3 - '08 BMW M3
90 day: 20.83 mpg (US)
Thanks: 0
Thanked 6 Times in 3 Posts
Quote:
Originally Posted by Ecky View Post
Just plugged it into a calculator, and the difference should be less than 1% optimistic with the new wheels. Fantastic that they're almost a perfect match.
Well I just went through and re-did all my trips in my fuel log since I wasn't adding the correct % with my old 175/70/13 tires. I also calculated it right for my current tires. Basically all my old mpg readings went up slightly, and my most recent trip went down slightly. From my calculations, the tires on the car now (165/65/14) are 2.9% difference from the stock (165/70/13). So every time I fill up the car and calculate based on the trip, I need to subtract 2.9% of the miles off the trip. I hope I'm doing that right.
__________________

Last edited by KROHN27; 11-21-2014 at 08:15 PM..
  Reply With Quote