Something I've found is that if you spawn a vehicle with liquid in a chamber then that chamber also starts full of air at extremely high pressure... this seems to depress the fuel reading on spawn and cause it to rise until that air is expelled. (I don't really understand how that's happening either, as that isn't how liquids work in this game as far as I know.)

If there were missing blocks to the outside world then your liquid meter would read zero, there could be a hole to somewhere else in your ship but you would see fuel sloshing about in that room (probably.)

Is 60k the correct amount of fuel based on what you intend the tank to be?

Oh, and to answer your actual question:

Its possible for multiple liquids to be in a tank, if the right liquid is still getting to the fuel intake on the engine then it will still run but if you have complex piping (and pumps so it isn't just the engine "demanding" fuel from the tank) then you can end up with water filling up components and blocking the fuel.

The tank holds 100k when full, I had it set to 60%.

I set it to 90% and went to the Arctic. I left with 90,000 and arrived with over 100,000. And by adding the sums of the storages from where I left (Harbor base) and where I arrived (Tajin) I definitely gained 10k diesel.

Originally posted by The Nameless:

The tank holds 100k when full, I had it set to 60%.

I set it to 90% and went to the Arctic. I left with 90,000 and arrived with over 100,000. And by adding the sums of the storages from where I left (Harbor base) and where I arrived (Tajin) I definitely gained 10k diesel.

You'd need to post this creation, I doubt it actually spawns fuel, rather than you readouts/logic being faulty for some reason.

Originally posted by GrumpyOldMan:

Originally posted by The Nameless:

The tank holds 100k when full, I had it set to 60%.

I set it to 90% and went to the Arctic. I left with 90,000 and arrived with over 100,000. And by adding the sums of the storages from where I left (Harbor base) and where I arrived (Tajin) I definitely gained 10k diesel.

You'd need to post this creation, I doubt it actually spawns fuel, rather than you readouts/logic being faulty for some reason.

I totally agree!

I'd say I have a similar problem when i try to siphon fuel from other ships. I have set up a tank for that purpose but it never seems to be deposited into the holding tank on base.

Originally posted by GrumpyOldMan:

Originally posted by The Nameless:

The tank holds 100k when full, I had it set to 60%.

I set it to 90% and went to the Arctic. I left with 90,000 and arrived with over 100,000. And by adding the sums of the storages from where I left (Harbor base) and where I arrived (Tajin) I definitely gained 10k diesel.

You'd need to post this creation, I doubt it actually spawns fuel, rather than you readouts/logic being faulty for some reason.

Well, the faultiness spread to the amounts of fuel I read when I hovered my mouse over the base icons on the map screen. So the glitch translated to actual fuel in the end.

Maybe it would've been reversed if I'd run the thing longer; maybe it was related to fuel spawning causing the air in the tank to be at high pressure, and if I'd run it long enough to wait that out everything would've been normal.

And I can't post it. I built it from the old Troll III tanker and the author has gone inactive so I can't get permission to reupload.

Coincidentally I've been playing around with this off and on this past week, it looks like the expansion and compression of liquids under pressure might not be symmetrical.

So if you spawn in a 100% full small tank it will read about 14L diesel, but if you then let that feed into a larger empty tank, you will see about 28L diesel after the transfer and the liquid's pressure drops. (I'm going off of memory here. I don't have the time at the moment to launch the game and double check the numbers.)

I've seen possible fuel gains when using the creative island pumps to fill and empty tanks as well, but I'm a bit skeptical that the display on the pump can be taken at face value.

I've been meaning to test that, but been distracted by other things.

Originally posted by Sentient_Futon:

Coincidentally I've been playing around with this off and on this past week, it looks like the expansion and compression of liquids under pressure might not be symmetrical.

So if you spawn in a 100% full small tank it will read about 14L diesel, but if you then let that feed into a larger empty tank, you will see about 28L diesel after the transfer and the liquid's pressure drops. (I'm going off of memory here. I don't have the time at the moment to launch the game and double check the numbers.)

I've seen possible fuel gains when using the creative island pumps to fill and empty tanks as well, but I'm a bit skeptical that the display on the pump can be taken at face value.

I've been meaning to test that, but been distracted by other things.

Yeah. Another factor I just remembered, and one that means I probably shouldn't have started this thread, is that I'm using Zizo's fuel storage mod. Which is pre-space-update. I have no idea what all it does, especially this long after he made it and with this many other things getting weird since then.

Originally posted by TKTom:

Something I've found is that if you spawn a vehicle with liquid in a chamber then that chamber also starts full of air at extremely high pressure... this seems to depress the fuel reading on spawn and cause it to rise until that air is expelled. (I don't really understand how that's happening either, as that isn't how liquids work in this game as far as I know.)

This! This happens since the pressure update. Now you need to connect to a "gas ventilation", which allows to equalize the pressure inside the tank with the environment. The level readings are a off, as the pressure compresses the fluid in the tank (which shouldn't).

Originally posted by Don Vito:

Originally posted by TKTom:

Something I've found is that if you spawn a vehicle with liquid in a chamber then that chamber also starts full of air at extremely high pressure... this seems to depress the fuel reading on spawn and cause it to rise until that air is expelled. (I don't really understand how that's happening either, as that isn't how liquids work in this game as far as I know.)

This! This happens since the pressure update. Now you need to connect to a "gas ventilation", which allows to equalize the pressure inside the tank with the environment. The level readings are a off, as the pressure compresses the fluid in the tank (which shouldn't).

Yeah, I had it connected to a gas vent, complete with relief valve, from the beginning. I did't know about the high pressure thing until I read it here; I thought the engine would quit getting fuel because it lower the pressure as it took fuel out until it couldn't get any more.

Originally posted by The Nameless:

Yeah, I had it connected to a gas vent, complete with relief valve, from the beginning. I did't know about the high pressure thing until I read it here; I thought the engine would quit getting fuel because it lower the pressure as it took fuel out until it couldn't get any more.

I forgot to account for the hidden fluid inventory on the manual on/off value in the setup, so the expansion on pressure drop looked more dramatic than it actually was.

Since Wednesday's update, I haven't been able to reproduce the creation of new fuel by dropping the pressure, so it looks like they fixed that exploit.

Originally posted by Sentient_Futon:

Originally posted by The Nameless:

Yeah, I had it connected to a gas vent, complete with relief valve, from the beginning. I did't know about the high pressure thing until I read it here; I thought the engine would quit getting fuel because it lower the pressure as it took fuel out until it couldn't get any more.

I forgot to account for the hidden fluid inventory on the manual on/off value in the setup, so the expansion on pressure drop looked more dramatic than it actually was.

Since Wednesday's update, I haven't been able to reproduce the creation of new fuel by dropping the pressure, so it looks like they fixed that exploit.

Yeah, if you read the patch notes, you'll realize they even said they did.