Hi, thank you for the note.
On tank volume: this was a bug on our side, not in your setup. The Conditions table on trip pages rounded tank readings to the nearest 100 L, and humidity and battery charge to the nearest 10%, so 0.083 m³ showed as 100 L. The figure on the live dashboard was correct. A fix is deployed, and nothing needs changing on your side.
Motor time is a bit different. The two engines are not added together. Motoring is the time at least one engine is running. As example, if one engine ran for the first leg, the other around midday, and both for the arrival. So the boat can come under engine for close to 4 hours, while the engines logged 1.8 h and 2.4 h each. Each engine’s own hours are under Engine hours on the trip page.