Previous posts in the series:
- http://geekygulati.com/2013/01/04/car-stats-obdii-android-torque/ where I show off the hardware and drive around the block, looking at some christmas lights and camo trucks. (really)
This is using the built in scatter plot in Torque.
- Limited to {I chose} 2000 samples; after which it starts to get weird.
- Logging every second.
The question I have: Is it really that much more gas efficient to drive slower on the interstate?
Answer: I can’t tell yet.
- This is from a drive around the interstate.. starting from Blankenbaker Parkway (Zaxby’s parking lot), out to the mall, up I264, up I71, to the rest area before Crestwood.
- I tried not being obnoxious driving 55 .. even though it’s the speed limit, its relatively quite slow. I think the stretch from Hurstbourne to I264 is downhill. 50MPG?
- Interestingly, I’m seeing some indication that driving 75 vs driving 65 is more efficient – however, that might have been related to the big truck in front of me. There was a lot of traffic, made it harder to do the experiment.
- It looks like the “worst” mpg gets barely worse, but the “best” mpg is much better at lower speeds.
- To get this, I had to export to a file on my droid, and then email myself the file, then edit it in Paint.Net.
I’ve figured out a better way to get this data long term, will revisit this later with more data. (next post!)
