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fuel consumption is broken


JeremyKrueger

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How you drive will influence fuel usage, as in real life...

(In F1 2020 the accuracy of the fueling predictions was also heavily dependent on the relevant practice programme. I'm not sure if this is still present in F1 2021 but if it is then this is likely to have been the cause of your issue.)

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18 hours ago, JeremyKrueger said:

did my first 25% race started with 3 laps fuel over target ran out of fuel with 2 laps left id say that is the definition of broken feeling like i just wasted a bunch of money on Garbage

 

16 hours ago, Ultra3142 said:

How you drive will influence fuel usage, as in real life...

(In F1 2020 the accuracy of the fueling predictions was also heavily dependent on the relevant practice programme. I'm not sure if this is still present in F1 2021 but if it is then this is likely to have been the cause of your issue.)

I agree with the above. If you’re doing qualifying style laps every lap then that’s understandable as to why you would run out. From what I’ve seen I think fuel management is less important now we can’t use rich mix

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1 hour ago, cpayne32 said:

 

I agree with the above. If you’re doing qualifying style laps every lap then that’s understandable as to why you would run out. From what I’ve seen I think fuel management is less important now we can’t use rich mix

Hmm but I wonder how he lost that much fuel with overfuelling the car and without the ability to change engine modes anymore. In the past I was able to drive with normal fuel mode and push every lap without any fuel problems. 

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Just now, DonBlanko said:

Hmm but I wonder how he lost that much fuel with overfuelling the car and without the ability to change engine modes anymore. In the past I was able to drive with normal fuel mode and push every lap without any fuel problems. 

The only thing I can think of is major over revving of the engine

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4 minutes ago, DonBlanko said:

What do you mean ? I do not own the game yet 😕

Ah okay. So basically when you change gears (assuming you use manual), in the race it’s better to change early to reduce the level of revs. The higher you rev the engine before changing the gear, the more fuel you use. Another factor is how aggressive you are on the throttle because smooth acceleration will use less fuel than planting your foot to the floor. 

For the last few games, ive usually filled with 1 lap of extra fuel but from the experience I’ve had so far, I am now only putting 0.4 laps of extra fuel and I finish with the same level and I use no assists

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Fuel is managed through your driving style now not Rich and Lean mix. If you're low on fuel lift and coast more into/around corners and keep your revs lower. Upshift before you hit the limiter. Higher gearing = less fuel burned.

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Ah that's what you mean. I had a translation problem, thanks ! lift and coast is known for me. But interesting to know that it now really is an important way of how to drive a race because in the previous games I never used lifed and coast even when I just had max +1 lap and did not use high fuel Mix. 

It seems that driving style now makes more difference in relation to fuel management. 

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I haven't done any 25% races besides that braking point one in France and fuel consuption seemed normal. I accidentally had 3 laps extra fuel in the car and while I'm not entirely sure what I had left at the finish, it was definitely more than 2 based on what Jeff told me.

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Yep this happened to me too. It did it in my Bahrain race, did all the practice programs, doin my race as usual, come lap 21/29 Jeff’s telling me I have 5 laps left of fuel. I restart, put 3.5 extra laps worth of fuel in and still ran out at the end, and the second half of that race I was short shifting so much I never even lit up the purple lights in the rev range, was losing so much pace to people behind me but fuel was still dropping quick. I looked up a person on YT playing the same track, same distance and their fuel worked just fine, and they were driving fast way more aggressive than I was, this is 100% a bug 

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weird. I haven't personally noticed fuel burning more quickly to be perfectly honest.  It feels about the same as previous titles after doing 4 chapters in braking point, 5 races in career, and 1 in championship.  All with 25%.

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30 minutes ago, Ultra3142 said:

Can anyone confirm whether or not the practice programmes still affect the fuel use prediction like in F1 2020? If they do then I expect this is key here rather than there being a bug...

Hmm it may be the problem, but I think the problem could something else, because some people wrote, that they overfueled the car, but still had not enough fuel for the end of the race. So the fuel predicition can't be the problem there. fuel predection would be the problem, if they start the race with an underfueled car, i guess. 

Maybt the new function is the problem. I have seen videos that there is a option you can change, wether the car slows more or less down, when the car is underfueled. This option should give the player the abiltity to save fuel more easy I guess, when the fuel rate is to low.

Now my question is, is the game scripted, that an overfueled car automatically burns more fuel than an underfueled car? maybe the solution is to underfuel the car or to take the direct predicted fuel rate and rarely use lift and coast. maybe there is a function in the game, which makes the car burn more fuel, when we overfueling the car at the start. 

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1 hour ago, DonBlanko said:

Hmm it may be the problem, but I think the problem could something else, because some people wrote, that they overfueled the car, but still had not enough fuel for the end of the race. So the fuel predicition can't be the problem there.

Yes it can. They are overfueling based on the prediction. If the prediction is wrong then they could actually still be underfueling.

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5 minutes ago, Ultra3142 said:

Yes it can. They are overfueling based on the prediction. If the prediction is wrong then they could actually still be underfueling.

True, good thought! 

But then must be the fuel prediction "very" wrong 😄

I don't know how to get that in practise. 

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9 minutes ago, DonBlanko said:

True, good thought! 

But then must be the fuel prediction "very" wrong 😄

I don't know how to get that in practise. 

I don't have F1 2021 yet to comment from experience but we did see a few people with issues like this in 2020 where people were driving ultra cautiously to pass the fuel management programmes.

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Ahh now it makes sense. Honestly I skipped the fuel Programm in f1 2020 because I didn't want to get too much r&d points too fast. 

But I honestly thought that the amount of fuel is predicted from your driving style when you do race simulation programm in practice and not from the fuel managenent programm. 

 

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6 minutes ago, DonBlanko said:

But I honestly thought that the amount of fuel is predicted from your driving style when you do race simulation programm in practice and not from the fuel managenent programm. 

Hmmm, I'm not 100% sure now you've said that! It was certainly determined by one of them anyway, so this could still be influence what the OP experienced.

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My "solution" in F1 2020 (and all before) was to do fuel/ers/tyre/race practice programs in standard fuel mix, which best represent how I will race. Never had any problem with fuel in race, always racing at 50%. If completing program is hard with standard fuel, just lift and coast more and use a bit of ers out of turns, should give enough boost for better time and save fuel for program goal.

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When doing a race sim, the fuel mix keeps automatically moving to lean, and I have to put it back to standard.  I ran an experiment and overfilled the car by some 8 laps on a full 100% race.  Halfway through the race I was down to 2 laps worth of fuel in Barcelona.  Something is definitely broken.

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I’m going to experiment more today and do the same race, team and distance in other modes and see how it goes, I suspect that Grand Prix mode might go by without issue as there’s no race sim program to be had to even calculate fuel 

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it was some kind of bug i recieved when adjusting fuel loads i race at 101 difficulty i know how to race was not my throttle control and unfortunately i have not been able to recreate this bug but for the record it has only happened the one time

 

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4 minutes ago, JeremyKrueger said:

it was some kind of bug i recieved when adjusting fuel loads i race at 101 difficulty i know how to race was not my throttle control and unfortunately i have not been able to recreate this bug but for the record it has only happened the one time

 

Did you see the vids I posted? Did that look similar to how yours was draining? I’m about to get on and run my experiments and see if I can recreate it 

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Well that’s good it at least isn’t happening again but man it sucks when it does. If it happens again make sure to document everything since this seems to be a more rare bug that way they can see it and fix it, I’m gonna make a bug report based on my incident 

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2 hours ago, JeremyKrueger said:

yes like in the video i ran the practice programs and adjusted fuel loads before race start that is when the bug started ive tried to recreate it twice with no luck

 

 


here’s my report I left, check out the two streamable links and compare them, you can see the difference perfectly there, first one in the main post body was my bugged run in driver career, second clip in the edit is the race I did in Grand Prix mode, no bug present 

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On 7/12/2021 at 2:55 PM, JeremyKrueger said:

did my first 25% race started with 3 laps fuel over target ran out of fuel with 2 laps left id say that is the definition of broken feeling like i just wasted a bunch of money on Garbage

I've run about 4 25% races now and I saw this post before my first one so I took an extra half lap of fuel to be safe.   Never needed it.   Still finished 1.34 laps of fuel left.  The last 3 races I never changed the fuel once from the default strategy and I've never even been close to running out and that's me pushing every lap.  I'm not doing any fuel saving or short shifting etc to help save fuel.  I suspect it's got to be your driving style.   Do you use assisted starts and just stand on the throttle until the lights go out?  If so, that will drain your fuel bigtime.   Do you use manual gears and shift late, over revving the engine?  That will also drain fuel.   Hard on the throttle out of corners in low gear can too, also creating lots of wheel spin.  I dont know how you drive obviously, just trying to throw some ideas out to help.

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19 hours ago, DizzyG3015 said:

well, of course it matters. What else would you get excited about at this point except braking point and better car damage simulation. Everyone complained about the outdated car performances last year. if they are like last year and Hamilton wins every race, I can still play last years game because that's not what 2021 is like.

 Tbh I prefer clean races so enhanced damage model is nice to have but that's it. Apart from that and updated team liveries I don't see much new in this game. we don't have the new tracks, my team is basically the same and I forgot to mention, the ratings are a joke again. Bottas 92, Ricciardo 91 😂 not saying its a bad game, I had fun with 2020, just that I am underwhelmed plus forums are there to talk about what could be better right? if everyone is just here to say how great the game is, that seems useless to me. Anyway, what is gamebreaking to you?

 

On 7/12/2021 at 2:55 PM, JeremyKrueger said:

did my first 25% race started with 3 laps fuel over target ran out of fuel with 2 laps left id say that is the definition of broken feeling like i just wasted a bunch of money on Garbage

There's nothing broken here, try to do Race Strategy in practice for the game to calculate your average fuel usage per lap, then in the race they'll give you the more precise fuel load/lap. After that it's all about your own fuel management ability, I could go one-lap down on fuel in 50% race with no issue at all, I bet the more experience drivers could go way below that without losing much pace. 

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I just had this problem in Spain (100% length) though I think it is because I used the practice mode mini game to skip it, ran my race normally and about halfway I saw the fuel icon, since then even under revving the car like hell and I can't get it to stabilize not to mention go up, saved mid game but I think I'm screwed on this one, in 5 laps I couldn't come up with a solution to stop the drain. It is weird since in Bahrain where I did the full practice program I did fine even with pushing the car really hard (+2 laps at the end of the race). My guess is that the game took the estimates from the simulated program and under fueled the car, probably will restart the race and try to add as much fuel as possible because at this rate, I will probably dnf 🙂

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Same here. I'm running a 50% length race on Spain in create a team mode and my fuel is draining like crazy. I drove the race before the same exact way and didn't have an issue. Seems like a bug. I was -1.35 laps of fuel on my first attempt at Spain, restarted the race with an extra 2 laps of fuel and still draining like crazy even when I'm lifting/short shifting. Frustrating. 

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It’s a bug. The fuel consumption goes down in F1 2021 in standard mix as it would in rich mix in F1 2020. I also increased the fuel to +2.5 laps on a 50% race after running out of fuel in my first attempt (redbull career mode). First attempt was aggressive driving. Second attempt I tried to lift and coast as much as possible from the beginning (as good old Jeff was telling me to). Not an ounce of difference. Still ran under with 14 laps left. All the AI cars where flying. Surely you don’t need to stick 5+ laps in a Redbull and actually drive not roll round the track to be left standing by a Williams. 100 AI difficulty before you ask. 

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My first race on f1 2021 in MyTeam and i had the fuel bug as well. 50% race distance. Over fuelled by 5 laps and i ran out with 2 laps to go. 

I completed all the practise programmes for the weekend. Unbelievable.

Last years fuel bug was due to using rich fuel mode in the practise programmes. Theres no fuel mix this year in the GPs so how can we have a fuel bug again? This really isnt acceptable and i rarely get annoyed with codemasters bugs, but this....

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On 7/14/2021 at 8:02 AM, Corgidad95 said:


https://streamable.com/qhfrby
 

this first vid is a clip of my race I did and you can see the fuel draining bottom right 

 

And this is someone else’s same race for comparison, skip to 53:33 to see as he opens his menu periodically and you can see the drastic difference in fuel change 

Don’t see anything wrong TBH. As a matter of fact it’s even going up when you lift and coast. In you clip is keept fluctuating between +2.91 and +2.96 or something like that. 
 

i fuel my car in 2021 on +0.6 and most of the time I finish with the same amount of fuel. And i don’t drive like a grandma😂

I actually tried to run out of fuel by shifting excessively late for a race but I never have fuel issues

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1 hour ago, dino78 said:

My first race on f1 2021 in MyTeam and i had the fuel bug as well. 50% race distance. Over fuelled by 5 laps and i ran out with 2 laps to go. 

I completed all the practise programmes for the weekend. Unbelievable.

Last years fuel bug was due to using rich fuel mode in the practise programmes. Theres no fuel mix this year in the GPs so how can we have a fuel bug again? This really isnt acceptable and i rarely get annoyed with codemasters bugs, but this....

I believe lean is available in the practice sessions? If so my hunch is that the 'bug' may be players using this for the critical practice programme without realising...

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My next race is Canada, ive simed all the practise sessions and will instead go straight into qualifying. I want to see if the bug repeats if i dont do any practise sessions but get the game to sim them/complete them for me.

If it does repeat then the race after i will do all the practise sessions bit not use lean mix to see what happens. It feels like f1 2020 when a few of us managed to get the fuel bug to repeat consistently after some trial and error.

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So no fuel issues at all in canada. Makes me think the fuel issue is down to using 'lean' mix in practise for the tyre and fuel objective. One of them asks you to do an entire lap on lean fuel or something. I think thats the bug that causes the fuel to drain in the race until you run out.

For next race im going to do the tyre and fuel objective and do the requirement to do a single lap on lean mix. Cant remember exactly what it was called.

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On 7/21/2021 at 9:57 PM, dino78 said:

So no fuel issues at all in canada. Makes me think the fuel issue is down to using 'lean' mix in practise for the tyre and fuel objective. One of them asks you to do an entire lap on lean fuel or something. I think thats the bug that causes the fuel to drain in the race until you run out.

For next race im going to do the tyre and fuel objective and do the requirement to do a single lap on lean mix. Cant remember exactly what it was called.

I think it may be those practice programs, and specifically the bonus objectives in the race strategy. I just started a myteam save and after overfueling the car by 1 lap I was already 1 lap down after 5 laps and even taking corners ridiculously slow resulted in losing fuel because it just gets drained super fast on the straights. But I remember that in the race strategy program I had an objective to do a lap with below average tyre wear. The only way to succeed was to drive a lap insanely slowly on hard tyres and I think on low engine mode and losing about 1% tyre wear. Even though I failed that race strategy program it still counted the bonus objective as completed. So after that I did a proper race strategy program to complete it. But I guess somehow those bonus objectives still count towards the calculated strategy, regardless of if you hit the target time or not.

Edit 1: I'm restarting the session using the default strategy this time. Somehow with minimum fuel in the car it still says I have 3.6 laps extra fuel in the tank. There does seem to be a huge gap between expected fuel load. From 33-53 on personalised to 46-66 on default. I'm really starting to suspect those bonus objectives are the issue.

Edit 2: Ok, the fuel prediction is still off by a mile. It's better but even on the default strategy fuel is draining fast and after 4 laps I went from +3.6 laps to +2.6 laps. Something is definitely off. I'm not driving any differently from last years game (because I haven't played it that much yet I'm even a bit more cautious), but somehow the fuel consumption is insane. Last year I could do a 50% race at maybe +1 lap or so, maybe half a lap more, and I would finish with .1 laps left. And that includes using rich mix here and there and maybe a lap in lean.

Edit 3: Booted up a 50% race at bahrain in grand prix mode in an alpha tauri (closest to the myteam car with a honda engine) and after starting with +2 laps after 4 laps it was at +1.88 laps. Something is definitely wrong with the practice programs.

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Guys, I play on ps5 with dualsense, for me it's difficult to manage this fuel situation so I realized the only ways to compensate for the lack of fuel mix is the gearbox (in dualsense it's almost impossible to be competitive with gears without be automatic) or fill the deposit with 6 or 7 more laps than the race itself (I play 50%) if the race has 30 laps I have to fill the deposit for 38 laps, which makes the car super heavy you know if there is a prospect of an update, I don't believe... or anything else you can adapt?

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7 minutes ago, NRA779 said:

Guys, I play on ps5 with dualsense, for me it's difficult to manage this fuel situation so I realized the only ways to compensate for the lack of fuel mix is the gearbox (in dualsense it's almost impossible to be competitive with gears without be automatic) or fill the deposit with 6 or 7 more laps than the race itself (I play 50%) if the race has 30 laps I have to fill the deposit for 38 laps, which makes the car super heavy you know if there is a prospect of an update, I don't believe... or anything else you can adapt?

If it's a bug, I hope so, I've done all the free practice goals... if not, it's difficult because without being at the wheel it's complicated to match and be competitive, but I speak for myself, thank you in advance

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One guaranteed way to avoid the fuel bug is to allow the practise programmes to be simulated. No fuel issues then.

If you do want to do the practise sessions yourself, avoid any objective that requires you to run the car in lean fuel mix.

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10 minutes ago, dino78 said:

One guaranteed way to avoid the fuel bug is to allow the practise programmes to be simulated. No fuel issues then.

If you do want to do the practise sessions yourself, avoid any objective that requires you to run the car in lean fuel mix.

Unfortunately that means that you have huge power unit wear because it will run your car for the full session.

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  • 1 month later...

The same problem appeared to me as well with PS4 Pro in Single Driver Career Mode.

I have been playing F1 games for quite a long time, so I am pretty advanced in managing fuel, so please avoid comments about lift and coasting or short shifting. Even when I am using mentioned fuel saving techniques, fuel usage is extremely huge and in the end, you need to overfuel inadequately to finish the race. For instance, main straight in Spain used 0.18 of my fuel. I tested this issue with simulating and actually doing all practice sessions, but it does not make any difference.

However, it looks like that other game modes have not this issue and this bug appears not to all players.

 

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