Every section below is computed from this vehicle's own telemetry. The big number, the context, and the receipt.
The telemetry estimate reconstructs fuel burned from the dash fuel-level gauge between refuels, with distance from the odometer signal. It tracks pump receipts closely, but it is not a pump-receipt log. When an owner supplies their actual pump-receipt totals, those become the headline and the telemetry figure is shown alongside as context.
Gallons are estimated from fuel-level percentage changes against the 31-gallon tank.
Burning a gallon of gasoline releases about 8.9 kg of CO₂ (EPA). Applied to the fuel this vehicle actually used — reconstructed from the same fuel-gauge telemetry behind the MPG section — it yields a lifetime tailpipe estimate. An estimate, not a measurement.
Cold air, winter fuel blends, and longer warm-ups all drag fuel economy down. Pairing each detected tank's MPG with its average ambient temperature shows how much this vehicle gives up when it's cold.
A real tow leaves two fingerprints in the data: fuel economy collapses, and the engine spikes RPM hard pulling away from stops. Either alone is noise — both together are unambiguous.
Every cold-engine start — the coolant well below operating temperature at key-on — is logged with the ambient temperature, the engine-block (coolant) temperature at key-on, and how long the coolant took to climb back to operating temperature.
The curve below traces the coldest start — coolant temperature on the y-axis, seconds after start on the x.
Every few minutes, the device asks the engine computer: "any problems?" A vehicle history report tells you what was reported. This tells you what was measured, on a steady cadence, by the engine itself. One is a claim. The other is a receipt.
A remote-start session shows up in the data as the engine running and warming the block while the vehicle stays parked. Each one below is timed from key-on to drive-off or shutdown.
Time with the engine running while the vehicle sits still burns fuel for zero miles. At an assumed light-duty idle rate, here's what it added up to in fuel, dollars, and CO₂. An estimate from idle duration, not a fuel-flow measurement.
The behavior detector flags two kinds of moments: an extreme braking event (a hard stab on the pedal that decelerates faster than normal traffic) and a harsh-cornering event (a turn taken with more lateral G than the suspension was tuned to absorb without complaint). Cluster them by 150-meter hex and the repeat offenders surface.
The hotspots aren't dangerous intersections in the abstract; they're the corners where this driver already tends to brake or turn harder than average. Patterns repeat.