How did you change how much fuel is being used? i’ve just been looking at that but cant figure out how 
take a look from around line 330 in client.lua
Thanks can you clarify a bit more 
Guess its somewhere in here but i realy dont understand the way to do it :
Citizen.CreateThread(function()
while true do
Citizen.Wait(1000)
if(IsPedInAnyVehicle(GetPlayerPed(-1), -1) and GetPedVehicleSeat(GetPlayerPed(-1)) == -1 and not isBlackListedModel()) then
local kmh = GetEntitySpeed(GetVehiclePedIsIn(GetPlayerPed(-1), false)) * 3.6
local vitesse = math.ceil(kmh)
if(vitesse > 0 and vitesse <20) then
stade = 0.00001
elseif(vitesse >= 20 and vitesse <50) then
stade = 0.00002
elseif(vitesse >= 50 and vitesse < 70) then
stade = 0.00003
elseif(vitesse >= 70 and vitesse <90) then
stade = 0.00004
elseif(vitesse >=90 and vitesse <130) then
stade = 0.00005
elseif(vitesse >= 130) then
stade = 0.00006
elseif(vitesse == 0 and IsVehicleEngineOn(veh)) then
stade = 0.0000001
end
if(essence - stade > 0) then
essence = essence - stade
local essenceToPercent = (essence/0.142)*65
SetVehicleFuelLevel(GetVehiclePedIsIn(GetPlayerPed(-1)),round(essenceToPercent))
else
essence = 0
SetVehicleFuelLevel(GetVehiclePedIsIn(GetPlayerPed(-1)),0)
SetVehicleUndriveable(GetVehiclePedIsUsing(GetPlayerPed(-1)), true)
end
end
end
end)
Higher stade numbers are more fuel consumption, lower numbers less consumption.
vitesse is km/h where consumption is set up according to your speed, top is 0 - 20 km/h next is 20 - 50 km/h etc, etc.
Sorry for my late respons! BUT i got it to work thanks to you sir! 
Thank you very much! its a pleasure to drive around now without worrying the fuel is running out every minute or two xD
How hard would it be to switch to gallons instead of liters? I k ow I can change the text but the tanks seem too big.
how can i zoom the text of the gasoline percentage?
how do you use petrol cans
Is there anyway to change the script so it’s gallons not liters?
It worked for me like this:
- Bought the can. (don’t have car refilled to 100%. Have it for a like a half or whatever, so that you can see the changes. )
- Get out of the car.
- Take the can.
- Go next to the car (Maybe go a bit a way from it and then back(Maybe at the end of the car as well))
- Press E (if I remember it correctly) and it should FULLY refuel your car and take 1 “ammo/capacity” out of it.
(If you have 1 of 100 “ammo/capacity” it will fully refuel the car. Yes, you can stack it up to 100 and FULLY refuel it 100 times.)
Let me know if this worked.
It doesn’t drop any fuel can when you buy it, do I have to put something into vrp
Is there a way to use the script by itself without essential mode, vrp or esx?
Works fine for me. If needed. You can probably tweak it a bit.
THats super wierd, it doesnt drop any fuel tank for me 
Technically it doesn’t drop it, it just adds/gives it to your Weapons selection/hands.
Are you having any errors? Are you using any other fuel systems?
No,
THere are no errors either.
I just did a fresh copy, and deleted cache
it is possible to apply this script just to boats, planes and helicopters ?
How can i make it so the gas is free? I have problems with frfuel and am trying this but i want it to be free. Ive tried changing all cost values in the config, it will say it costs 0 in game but when you try to get the fuel it will say i dont have enough.