Fuel economy?

[Shabutie]

So, I havent quite figured out how to increase it outside of just the throttle. Im using the pickup and cant seem to do much better than 5mpg (about 2 km/l). Now Im assuming the fuel economy is scaled to increase fuel consumption (otherwise it would take forever for you to need to fuel up) but I tried putting in the smaller 90 hp engine, and multiple final drives and the only thing that seems to effect fuel economy, besides weight, is the throttle. So, it seems that more power and high ratio final drives give the best fuel economy for towing.

Does this sound right? It just feels like the game isnt taking into account the engine displacement and rpms.

[PVT. SOLUTION [ZWAT]]

Originally posted by Shabutie:

So, I havent quite figured out how to increase it outside of just the throttle. Im using the pickup and cant seem to do much better than 5mpg (about 2 km/l). Now Im assuming the fuel economy is scaled to increase fuel consumption (otherwise it would take forever for you to need to fuel up) but I tried putting in the smaller 90 hp engine, and multiple final drives and the only thing that seems to effect fuel economy, besides weight, is the throttle. So, it seems that more power and high ratio final drives give the best fuel economy for towing.

Does this sound right? It just feels like the game isnt taking into account the engine displacement and rpms.

Ave!

Let me just paste what I wrote in the thread started by jVm:

"Ave!

I agree with You jVm, fuel consumption is a misunderstanding and it is very visible on the example of Tow Truck.

To use up all the fuel in the COMFORT MODE, you need to drive about... 12-15 kilometers.

This is ridiculous...
Especially when we look at how it is solved in Euro/American Truck Simulator.

There is also no big difference in the SPORT/COMFORT MODE, because the difference on the same distance in the fuel bone in the AUTOPILOT MODE, when refueling in comfort mode is 600 gold and in sport mode 900 gold...

It looks like that either we have a gigantic combustion similar to the launch of a space shuttle, which does not translate into power and speed at all, or... we have a tank with the capacity of a lawn mower.

IMPORTANT !

You should point out such errors and report them, because only 2 people at the moment, according to the information I have, are working on the game, so they may not be aware of it, and moreover, they do a lot of things at once, which may mean that they may not see or about them to forget in the rush of work - it is also possible that at the moment it has a low priority.

Which does not change the fact that it is funny... [TANK CAPACITY / FUEL BURNING]"

[Etienne]

Which pickup did you used?
I only achieved 1.3km/l by using Stella with 90HP engine, muscle transmission, long intake and final ratio 6.5 with lightweight wheels.

[Shabutie]

Originally posted by Etienne:

Which pickup did you used?
I only achieved 1.3km/l by using Stella with 90HP engine, muscle transmission, long intake and final ratio 6.5 with lightweight wheels.

The pickup thats just named "pickup". Has a lift, winch, roll bar and lights.

[HeOfManyGames]

I've managed to get 2.2/2.3 km/l out of my stock pickup and 3km/l in my Lada taxi, though I see what you mean in terms of the units of measurement related to consumption don't seem accurate.

That being said, imo the general rate of fuel consumption and the way it changes based on the car/manner of driving is pretty decent.

In the stock, 90hp 10,000 taxi (I forget its name) I could drive constantly for about 2 full in game days & nights before I got critically low on fuel ( 230-260km in-game) baring in mind I drive gently and conservatively based on passenger comfort and general RP'ing.

With my stock 12,000 truck , I get a little less than that, maybe 170-200km... however the truck is heavier, larger engine and I drive it harder as I dont have to worry about passengers comfort.

In my heavily modified Supra which I only drive fast and for fun, I average 0.9-1.2 km/l and can easily drain the tank in a few irl mins, but then Its engine and power output are double my utility vehicles and I normally rev it close to the limiter consistently.

The raw numbers may seem odd, but for the actual relative consumption I'd say its pretty accurate.

[Shabutie]

Originally posted by HeOfManyGames:

I've managed to get 2.2/2.3 km/l out of my stock pickup and 3km/l in my Lada taxi, though I see what you mean in terms of the units of measurement related to consumption don't seem accurate.

That being said, imo the general rate of fuel consumption and the way it changes based on the car/manner of driving is pretty decent.

In the stock, 90hp 10,000 taxi (I forget its name) I could drive constantly for about 2 full in game days & nights before I got critically low on fuel ( 230-260km in-game) baring in mind I drive gently and conservatively based on passenger comfort and general RP'ing.

With my stock 12,000 truck , I get a little less than that, maybe 170-200km... however the truck is heavier, larger engine and I drive it harder as I dont have to worry about passengers comfort.

In my heavily modified Supra which I only drive fast and for fun, I average 0.9-1.2 km/l and can easily drain the tank in a few irl mins, but then Its engine and power output are double my utility vehicles and I normally rev it close to the limiter consistently.

The raw numbers may seem odd, but for the actual relative consumption I'd say its pretty accurate.

Put the largest engine in your taxi and youll notice that your fuel economy doesnt change. Engine size is not taken into considetation. Only throttle. Thats the problem.

Your comparing different cars. So yes they better see different economy.

[HeOfManyGames]

Originally posted by Shabutie:

Originally posted by HeOfManyGames:

I've managed to get 2.2/2.3 km/l out of my stock pickup and 3km/l in my Lada taxi, though I see what you mean in terms of the units of measurement related to consumption don't seem accurate.

That being said, imo the general rate of fuel consumption and the way it changes based on the car/manner of driving is pretty decent.

In the stock, 90hp 10,000 taxi (I forget its name) I could drive constantly for about 2 full in game days & nights before I got critically low on fuel ( 230-260km in-game) baring in mind I drive gently and conservatively based on passenger comfort and general RP'ing.

With my stock 12,000 truck , I get a little less than that, maybe 170-200km... however the truck is heavier, larger engine and I drive it harder as I dont have to worry about passengers comfort.

In my heavily modified Supra which I only drive fast and for fun, I average 0.9-1.2 km/l and can easily drain the tank in a few irl mins, but then Its engine and power output are double my utility vehicles and I normally rev it close to the limiter consistently.

The raw numbers may seem odd, but for the actual relative consumption I'd say its pretty accurate.

Put the largest engine in your taxi and youll notice that your fuel economy doesnt change. Engine size is not taken into considetation. Only throttle. Thats the problem.

Your comparing different cars. So yes they better see different economy.

True, but larger engine doesn't necessarily mean worse or better fuel consumption by default, it depends on various factors; mainly manner of driving. irl I've got a 2.0l petrol car designed for sporty driving and a 1.4l petrol city car (Both naturally aspirated). They would return very different mpg if both driven hard (23-25mpg vs 30-35 mpg) , but if cruising on a motorway or dual carriageway, both return more or less the same (40-45mpg)

In game, how hard you drive effects fuel consumption, as does the vehicle type/default engine/weight. Imo thats pretty decent. Dont get me wrong, I'm not saying its perfection and needs no improvement, but for me I'd say a lot of other things need more tweaking before we get to those finer details.

E.g the AI police in singleplayer are completely inept and cant even come close to catching a stock 90bhp lada; irrespective of straight or twisty winding roads. Also the road traffic priority rules and speed limits in mph make no sense whatsoever. I'd personally prioritise those issues first.

[Sir Motorsheep]

Originally posted by HeOfManyGames:

Originally posted by Shabutie:

Also the road traffic priority rules and speed limits in mph make no sense whatsoever. I'd personally prioritise those issues first.

Well the speed limits being weird is because they're actually in kph. 30, 60, 70, 90, 110 afaik.

[HeOfManyGames]

Originally posted by DasMotorsheep:

Originally posted by HeOfManyGames:

Well the speed limits being weird is because they're actually in kph. 30, 60, 70, 90, 110 afaik.

Yep, I don't just mean the conversion weirdness between kph/mph though.
The non residential ringroad round the island is 43mph (Which if you live in the UK already doesnt make much sense) but when driving through the towns and villages it doesn't change. Irrespective of what country you're from, I'm pretty sure its universal that built up/residential areas always have lower speed limits than the country roads connecting them e.g in the UK that outer road would almost certainly be 60mph limit , while the towns and built up areas would be 30mph.

There are also multiple near identical twisting roads in the middle of nowhere mountains, but one will be 58mph, another will be 43mph, and another will be 37mph...? Residential suburbs are 43mph, but a random short connecting road of houses behind the courier building or by the church is 19mph...?

[Shabutie]

Originally posted by HeOfManyGames:

Originally posted by Shabutie:

Put the largest engine in your taxi and youll notice that your fuel economy doesnt change. Engine size is not taken into considetation. Only throttle. Thats the problem.

Your comparing different cars. So yes they better see different economy.

True, but larger engine doesn't necessarily mean worse or better fuel consumption by default, it depends on various factors; mainly manner of driving. irl I've got a 2.0l petrol car designed for sporty driving and a 1.4l petrol city car (Both naturally aspirated). They would return very different mpg if both driven hard (23-25mpg vs 30-35 mpg) , but if cruising on a motorway or dual carriageway, both return more or less the same (40-45mpg)

In game, how hard you drive effects fuel consumption, as does the vehicle type/default engine/weight. Imo thats pretty decent. Dont get me wrong, I'm not saying its perfection and needs no improvement, but for me I'd say a lot of other things need more tweaking before we get to those finer details.

E.g the AI police in singleplayer are completely inept and cant even come close to catching a stock 90bhp lada; irrespective of straight or twisty winding roads. Also the road traffic priority rules and speed limits in mph make no sense whatsoever. I'd personally prioritise those issues first.

Increasing engine displacement will ALWAYS increase fuel consumption all else being equal. Thats my point.

Nothing else matters. In order to create more power, you need to burn more fuel. Its that simple. The game does not simulate that.

[westrud]

Weight and Aerodynamics determine how much energy is required to move a vehicle, fuel puts out same amount of energy per volume consumed regardless of engine displacement. A larger displacement engine may allow you to accelerate faster and drive at higher top speed, which will burn more fuel, but when driven equally fuel consumption difference will be negligible. This of course depends on the efficiency of the engine, things like valve and cylinder head design can affect the amount of power output per unit of fuel, by more efficiently burning the fuel that enters the engine. Other factors like internal friction also factor in and can be significant but aren't necessarily related to displacement.

We are really only assuming, perhaps rightly so but not necessarily, that the different HP engines in game are actually different displacement engines. Stock 5.7L GM V8's range from about 160HP to over 600HP, a big difference for engines of the same displacement.

[Shabutie]

Originally posted by westrud:

Weight and Aerodynamics determine how much energy is required to move a vehicle, fuel puts out same amount of energy per volume consumed regardless of engine displacement. A larger displacement engine may allow you to accelerate faster and drive at higher top speed, which will burn more fuel, but when driven equally fuel consumption difference will be negligible. This of course depends on the efficiency of the engine, things like valve and cylinder head design can affect the amount of power output per unit of fuel, by more efficiently burning the fuel that enters the engine. Other factors like internal friction also factor in and can be significant but aren't necessarily related to displacement.

We are really only assuming, perhaps rightly so but not necessarily, that the different HP engines in game are actually different displacement engines. Stock 5.7L GM V8's range from about 160HP to over 600HP, a big difference for engines of the same displacement.

More fuel is required to produce more power. There is no way around that. A 90hp engine will ALWAYS consume less fuel under the same conditions as a 180hp engine.

What you are talking about is completely different. The thermal efficiencies of an internal combusion engine are not significant enough to be able to consume the same amount fuel to produce 180hp as a less powerful 90hp engine. Its just not going to happen.

And the 600hp 5.7L will consume buckets more fuel than the 160hp 5.7L.

More power requires more fuel to be burned. The general rule of thumb when it comes to fuel consumption vs power is that it takes "about" 10 gallons per hour per 100hp. Obviously this isnt a set number, for the reasons you mentioned, but you will never see a 100hp engine consume 5 gallons per hour or a 200hp engine consume 10 gallons per hour. Those kind of thermal efficiencies do not currently exist.