Does anyone understand the Big Oil engine system?

[brassejector]

Its quite hard to understand, i dont know what to do there.

[Unknown Knight]

Well, here's a text version from my guide:

To find the right engine, we need 3 clues. There will be 2 clipboards and 1 computer. The clipboards can be either in the house itself or in the lab, whereas the computer will always be in the lab. Clipboards will NEVER be found in the server room locations so don't bother opening all up. Note that explosives may break the computer even from the ground floor so watch out.

Once we have all 3 clues, we can find out which is the correct engine, either by logic or by using a Big Oil Calculator (Google that).

Clue type 1, clipboard: Nitrogen/Helium/Deuterium
Upon entering the lab, there will be a whiteboard which states what colour of the tank matches each gas. Then check for engines with that tank colour. Note that this tank on the engine is slanted and NOT upright.

Clue type 2, clipboard: H/2H/3H
Each engine has an upright blue tank connected, with either 1, 2 or 3 tubes, corresponding with H/2H/3H. Don't confuse H with Helium.

Clue type 3, computer: ≤ 5812 or ≥ 5783
Always found in the lab. Don't worry about PSI or BAR. Just look at less than or more than. If we get less than (≤ 5812), check the pressure gauge on the engine for a value less than 400 and vice versa. Exactly 400 is never right.

Other tips
Facing the whiteboard, all left side engines are 3H, while right side contains 2x 1H engines in the first row and the rest are 2H. That should narrow down the search. Also bring a torchlight gadget as cops love to shut the power. If we've picked up intel on Day 1 and it turns out to be Cold Fusion Research, the engine will always be Deuterium + 3H so just look for the pressure computer.

Or a video if you need:
https://www.youtube.com/watch?v=7mo0a9vSCCU

[MTGMaxer]

https://steamcommunity.com/sharedfiles/filedetails/?id=169756908

[Arrancar]

Yeah it can be pretty confusing for new players, since everybody looks on whiteboard, which is wrong.