MPG Experiment - Page 5 - G35Driver - Infiniti G35 & G37 Forum Discussion

Mar 22, 2009 | 04:01 PM

#61

Tollboothwilley

Former G35driver Vendor

iTrader: (32)

Joined: Jan 2008

Posts: 3,684

Likes: 28

From: Vegas

I got 27.8 MPG from Phoenix, AZ to SLC, UT

I was pegged around 79 mph the whole way.

Mar 22, 2009 | 06:41 PM

#62

Infiniti Chica

Registered User

iTrader: (2)

Joined: Feb 2009

Posts: 1,083

Likes: 96

From: Rio de Jeneiro or East Coast

Quote:

Originally Posted by jimmyc13

No kidding....haven't heard of anyone doing that to improve mileage. Just did some quick math and looks like the tire diameter that you're running now is very close to my tire size, though mine are 245/40/19's and heavier than OEM & more friction/surface area on the road. Makes sense (terrain, elevation, etc.)...good point.

How are you calculating your actual MPG's now that your speedo & odo are off about 3% (like mine)? I have a portable GPS which tracks mileage, so that's how I calc. mine when I have my summer wheels on.

Based on your formula... I might actually be getting >450 miles per tank since I haven't bothered to calculate the new tire circumference. I calculate my mileage in a rudimentary/unscientific way... drive the car until it sits on empty (from a tankful of course) and the odometer will read approx 440-450 miles- refill and measure how many gallons were actually used (usually 19 or so) between tankfuls. So there are 2 rudimentary measures. Like I said, hardly empirical science-- but it works for me! Did this about 10 times and it was consistent, plus, the drives taken equal the 450 mile range also. It looks like TollBoothWilly above is in my mpg range also-- and he's moving pretty fast compared to me!

Keep in mind, I drive the speed limit, don't race from lite to lite, seldom push the car-- basically, I drive like the little old lady from Pasadena!

Mar 23, 2009 | 01:11 PM

#63

SPEC-01

Registered User

Joined: Jan 2009

Posts: 175

Likes: 1

I get 400 miles per tank regularly. I don't think of myself as overly concervative in terms of my driving style but I do spend the majority of my drive on the Interstate. I do allow the "Gas Light" to come on but I don't think I push the limits too far regarding the distance traveled after the fact.