Siphoning

How siphoning plays, where the fuel goes, and what ends an attempt.

On this page

Stand by a car's fuel filler with a siphon_hose and a jerry can that has room in it, then use /siphon, the item, or "Siphon fuel" on the car with ox_target or qb-target.

The car has to be unlocked (the fuel door opens from inside), with nobody in the driver's seat and the engine off. A car that was just siphoned can't be siphoned again for a while (carCooldown).

How it plays

Set up the can

Point at the ground by the car and press LMB to put the can down (A / D turn it). Unscrew its cap: hold LMB on it and circle counter-clockwise. Then drag the funnel over the can's neck and let it drop in.

Open the filler

Unscrew the car's fuel cap the same way. It drops onto its strap and swings.

Put the hoses in

Click the end of the siphon hose and it goes down the filler neck until it reaches the fuel. Click its other end and it goes down into the can through the funnel. Click the thin blow hose and it goes into the filler too.

Blow until it runs

Hold LMB to blow into the blow hose and let go while the pressure is in the green. Each good puff pushes the fuel further up the clear hose. It takes 3 to 5 good puffs (puffs).

Let it run

The fuel crests and runs into the can by itself, a quarter litre a second (flowRate). Press E to pull the hose when you have enough.

Pack up

The hoses come out. Screw the fuel cap back on (clockwise until it clicks), click the hose to pull it out of the can, pull the funnel out (S or drag it up), cap the can and pick it up. Esc skips the pack-up.

The tank's last few percent (reserve) stays in the car: air comes through the hose before it.

Where the fuel goes

The fuel comes out of the car through your fuel script (ox_fuel, lc_fuel, cdn-fuel, ps-fuel or LegacyFuel, found by tr_core) and goes into the fullest jerry can that still has room. Without a fuel script, each car keeps its own fuel, full until someone siphons it.

How many litres a car has depends on its tank: classTank gives a size per vehicle class, tankLitres the rest. See Configuration.

The server decides everything that matters: whether you may start, how many puffs it takes, how fast the fuel runs, how much there is and how much made it into the can. A modified client can't fill a can faster than the hose can.

The filler

GTA's cars have no fuel door, so the filler (bezel, flap and cap) is put on the paint where a filler usually is. Every GTA car is fitted already. For addon cars, see Fitting fillers to cars.

Still stuck? Open a ticket on Discord.