SuperMID M1, MPG Computer

[krousdb]

Originally Posted by Yoshi

I'm confused what the real distance was.
Is the 41.04 was the adjusted(3.4%) value from your Del Sol?
Would like to see raw values of distance, from M-1 and Del Sol.
I think your report on "Digital Fuel Gauge" thread was very systematic.

Yoshi,
The 41.04 value came from the SuperMID that was on the Prius. The round trip as measured by the SuperMID on the Prius was 83.43km or 51.73 miles. The distance was perfectly calibrated with a 50 mile of mileposts on various highways.

Since I have oversized tires on the del sol, the odometer under registers by 3.4% as calculated by the same milepost method.

The del sol odometer shows 49.75 miles for the round trip. When you adjust by 3.4% for the larger tires, that calculates to 51.44. So the difference between the 51.73 Prius measurement and the 51.44 del sol adjusted measurement would be the distance lost from IGnition off - on while coasting. I will just use the SuperMID figure, even though this will result in 3 miles of unregistered distance for each tank. That translates into 0.3 MPG lower than actual.

I hope that answers your question.