Does tire compound affect fuel consumption,and can you save fuel by short shifting?

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bloodstriker

bloodstriker

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GTP_slowman
1.Can you save fuel by short shifting?
2.Can you save fuel by letting the car roll through the apex of corners without acclerating or braking?
3.Does tire compound affect fuel use?

Thanks
 
Last edited:
bloodstriker
1.Can you save fuel by short shifting?
2.Can you save fuel by letting the car roll through the apex of corners without 3.acclerating or braking?
4.Does tire compound affect fuel use?

Thanks
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1) yes (but it's a race so I don't know why you would)
2) it doesn't really matter because you are braking and braking is using gas, because you have to hit the gas and get all that weight back up to speed.

4) I'm not really sure in the game, but in real life it does effect fuel consumption
 
bloodstriker
1.Can you save fuel by short shifting?
2.Can you save fuel by letting the car roll through the apex of corners without 3.acclerating or braking?
4.Does tire compound affect fuel use?

Thanks
Click to expand...

What happened to your third question?

OLDSKOOLACURA: any proof for the advantage in economics when it comes to shifting? I've never noticed that so far.
 
Scuzzilla
What happened to your third question?

OLDSKOOLACURA: any proof for the advantage in economics when it comes to shifting? I've never noticed that so far.
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shortshifting, you are using more fuel in higher rpms. it doesn't save a lot but it does and in a endurance race it should add up too be a decent amount
 
OLDSKOOLACURA
shortshifting, you are using more fuel in higher rpms. it doesn't save a lot but it does and in a endurance race it should add up too be a decent amount
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That's perfectly clear to me but I don't think that GT5 is taking it into account, to be honest. :)
 
bloodstriker
1.Can you save fuel by short shifting?
2.Can you save fuel by letting the car roll through the apex of corners without 3.acclerating or braking?
4.Does tire compound affect fuel use?

Thanks
Click to expand...

1) Well, according to Wikipedia, It can improve fuel economy for the car, but shortshifting will just make an amount of torque and power being lost, as you're shifting before necessary. Consequently, It can compensate to grip.

2) Well, that's just 1-5 seconds. This won't make much difference on low duration races and/or low corner count tracks. Even if it does, I doubt it will show a large margin of difference with or w/o accelerating or braking at the apex of corners.

4) I haven't experiment, but just like the game said, hard tire compound is a way to go, as it doesn't wear out at high rates after prolonged racing. Medium is also good, balancing both grip and durability.
 
elitedriver123
4) I haven't experiment, but just like the game said, hard tire compound is a way to go, as it doesn't wear out at high rates after prolonged racing. Medium is also good, balancing both grip and durability.
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Sadly, the tires compounds (hard, medium, soft) all wear out at the same rate in GT5. Unless you're trying to handicap yourself with lower grip, the softest tire is the best.

To the OP:
1) Short shifting saves fuel, it would only matter in the endurance races, and only if you consistently short shift.
2) Coasting through corners will save fuel as well, with the same caveats as answer #1.
3) Seems like the same questions as 2?
4) I've seen no evidence that tire compound relates to fuel economy in GT5. In reality though, you're quite right. Tire size and compound can alter fuel economy quite a bit.
 
Scuzzilla
That's perfectly clear to me but I don't think that GT5 is taking it into account, to be honest. :)
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I think it does. Ive recently done the a-spec Le Mans 24hr, over a 10 lap stint, I could save ~6ltrs by short shifting and driving smooth(Toyota GT-One). It helps the rear tires a lot too.
 
higher grade tires tends to cost higher fuel usage because you are flat out on the throttle for longer. From my limited experiment the difference can be up to 5 to 10% for adjacent tire compounds.
 
Using hard racing tyres instead of soft racing tyres, on indy500, you can save about 2-3 laps in a FGT!
In B-Spec, it's not much, but its a major difference, cos u can pit every 40-41 lap, instead of 38-39. It also depends on the b-spec driver you are using.

Another question: does drafting saves fuel?


freedomweasel
Sadly, the tires compounds (hard, medium, soft) all wear out at the same rate in GT5. Unless you're trying to handicap yourself with lower grip, the softest tire is the best.
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It does wear differently. Unless you push to the max in every corner, taking all the tyre indicators to the red, the difference to the hard racing and soft racing, can be up to twice the mileage. (using B-spec, so i dont burn tyres every corner)
 
Sounds like you're possibly unconciously adjusting your driving to be more smooth while you are using the hard tires. The majority of people who have tried to investigate the tire wear have concluded that there is little to no difference, at least with the current patch level. If anything it works in reverse since you tend to slide less with grippier tires. As to what difference the compound makes to fuel usage, I have no idea other than spinning wheels = extra fuel burn.
 
Drafting allows you to drive as fast with less throttle, so yes it does save fuel. Ask any truck driver.
 
Ronald6
Drafting allows you to drive as fast with less throttle, so yes it does save fuel. Ask any truck driver.
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I'm well aware. However, being that this is in the GT5 forum I was discussing GT5.

I expect that using x% throttle in the draft or out of the draft will produce the same fuel usage. But yes you could maintain the same speed in the draft and use less throttle compared to out of the draft.

edit: Given the AI in this game and the amount of speed gained in the draft, I don't think anyone would maintain a draft long enough to really get any fuel savings before simply passing the car.
 
freedomweasel
edit: Given the AI in this game and the amount of speed gained in the draft, I don't think anyone would maintain a draft long enough to really get any fuel savings before simply passing the car.
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But if I wanted to, for example, I could coast behind this Yellowhat that I'm chasing on the Suzuka 1000 and save even more fuel in my Fireblade. And since refueling is what takes the most time at pit stops it might be worth it.
 
Well.. you could, but based on my experience with the AI it'd be just as easy to pass the yellowhat, lap it twice and then spend as much time in the pits as you want.
Seems like it'd take more effort and less fun to maintain the draft and save a few liters of fuel compared to just passing the car and moving on.

Side note, I've never seen a real race where a car drafts another for fuel economy.

On the other hand, it's your game, if you think it gives you an edge or that it makes it more entertaining, enjoy.
 
Question: does drafting (in GT5) save fuel.
Answer: yes.

Whatever opinion you derived from my answer to this question my intent was nothing beyond answering it.
 
fuel burn is just calculated by miles driven, I sat doing a burnout and my fuel ran out at the same mile it did buy normal racing so no shortshifting, drafting or coasting wont save fuel in gt5
 

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