Florence_NC
Senior Member
- Joined
- Sep 25, 2018
- Threads
- 2
- Messages
- 340
- Reaction score
- 220
- Location
- North Carolina
- Vehicle(s)
- 2018 Type R
I get all the math, that wasn't what I was getting at.I keep track of mileage at each fill up as well as the gallons of gas pumped at each fill up. So for the tank of gas, it can be computed as (C - P) / G where C = current mileage, P = previous mileage, and G = gallons of gas. This does assume the odometer is correct. If I want to compute the "lifetime", I do (C - P') / G' where P' = first measured mileage and G' = sum of all gallons of gas. Unfortunately for me, I started computing these around 17k miles, but currently have about 31k miles on the car. Most of these calculations are easy to do in Excel if you have your tables set up right with your data logged properly.
Edit: that said, my car says that I'm averaging 27.8-27.9 MPG right now (I believe this is since I got my new wheels) but I have only a computed average MPG > 28 for 3 fill ups accounting for 700 miles of driving (wheels have approximately 3k of mileage on them (calculated 26.8 MPG average for the past 3k miles).
I was curious how you came up with the miles traveled, that is where the most likely discrepancy would be. I asked because I have checked mine against the odometer and get basically the exact same thing as the displayed number. I still have OEM tires, so there is potentially a difference there.compared to you.
Interesting either way.
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