What's the "correct" way to do a partial fill up?

[GRNDPNDR]

When using the app and only doing a partial fill up I'm wondering if you keep adding to your trip distance or reset it with each partial fill up.

for instance, I use my trip gauge to check fuel mileage. If I go 100km then do a partial fill up do I reset my trip meter to 0 or do I just keep going? so if I've gone an additional 20km on that partial fill up would my next partial fill up be 20km, or 120km?

[trollbait]

You would reset the trip meter.
So you would have an entry for 100km and one with 20km, with the amount of fuel pumped in for each.

[GRNDPNDR]

thank you good sir