When the fuel runs out, the engines just keep on running on both the Cessna AgTruck and the AirTractor although the tank is empty. First thought that there is a conflict with the assignment of “liquid” and “fuel”, but the bug persists independent of the loading level in the hopper.

Do you have unlimited fuel selected in the Assistance options?

Did the following test (unlimited fuel disabled): Spawn at a runway Set fuel tanks to 0 Increase RPM and wait for the engine to shutdown cessna-188-agtruck (2500 RPM): 7:30 minutes [Screenshot (2922)] airtractor-at-802 (1500 RPM): 3 minutes [Screenshot (2923)] I don’t know what should be the…

OMG I just tested it again and you’re absolutely right! I thought I was patient enough, having waited 5 minutes… :grinning_face_with_smiling_eyes: Well I agree, these values seem waaaay to high, but at least they don’t run indefinitely.

Did the same test with the C172, 1800 RPM and had to wait 15:45 minutes… I don’t know what should be the expected time for each one of them. [Screenshot (2924)]

I had tried it with the Cessna 152 and the Pitts S2S - both engines quit within a minute.

It should be fixed in the SU6 beta for the mentioned aircraft: Continuing the discussion from Release Notes - SU6 Beta 1.8.5.0 - July 6, 2026 : [image] Release Notes - SU6 Beta 1.8.5.0 - July 6, 2026 Aircraft Fixed an issue causing the fuel lines of the 172, AT802, DA62, and E330 to be oversize…

C172: 2:23 (vs 15:45) @ 1800 rpm AT-802: 1:33 (vs 3:00) @ 1500 rpm C188 AgTruck (tested even if not part of the list): no change, still 7:30 @ 2500 rpm. For this one, I would recommend to create a report in the Bug Reporting Hub > Aircraft & Systems since it seems too long before engine dies.

Cessna AgTruck and AirTractor AT-802 can not run out of fuel

User Support Hub Aircraft & Systems

DementedCorn327 July 6, 2026, 9:44pm 8

It should be fixed in the SU6 beta for the mentioned aircraft:
Continuing the discussion from Release Notes - SU6 Beta 1.8.5.0 - July 6, 2026:

I will test later