Fuel weight

[Gedi69]

does the fuel add weight to the car? i thought that if i start qualifying and the fuel gets really low i would get faster laps due to less weight is it me or does it have no effect at all?

 

[Techy]

does the fuel add weight to the car? i thought that if i start qualifying and the fuel gets really low i would get faster laps due to less weight is it me or does it have no effect at all?

Fuel doesn't have any weight in the game. All it does is to improve your car's overall engine performance whenever you change your oil, that's it.

 

[Moot]

Fuel doesn't have any weight in the game. All it does is to improve your car's overall engine performance whenever you change your oil, that's it.

You are confusing oil and fuel.
I could go faster in GT4 with low fuel and I think the same applies in GT5. Also notice it in B-spec the lap times are a lot faster on low fuel.

 

[amar212]

Fuel doesn't have any weight in the game. All it does is to improve your car's overall engine performance whenever you change your oil, that's it.

I think you are not right, but I can't confirm it from the first hand.

I remember the post from early GT5 days when one GTP member was testing performance with his Lv40 B-Spec driver trained to do consecutive laps with almost no time-margin.

His results revealed that the car was gaining around 0.300+ on lap-times after he forced non-fueling during pit-stops and observe the times with low fuel in the car.

 

[SoCal Senator]

But remember if your fuel's low, so are your tires--giving up grip. Kind of balances out.

 

[Moot]

But remember if your fuel's low, so are your tires--giving up grip. Kind of balances out.

You change tyres, but don't top up the fuel.

 

[iamsupernasty]

Yes, fuel does have weight in this game.

I've run several endurance races and if you pit for tires without refueling, your lap times will decrease very dramatically. There is no question that when wear is on, the fuel load effects lap times.

 

[HippieGiraffe]

You are confusing oil and fuel.
I could go faster in GT4 with low fuel and I think the same applies in GT5. Also notice it in B-spec the lap times are a lot faster on low fuel.

You may be on to something. Though I've tended to notice that cars (more particularly 700pp+ cars) have more offs and spins when light on fuel. But as SoCal mentioned, perhaps its the combo of rubbish tires.

You just have to find that sweet spot between fuel-tire usage and go for it.

 

[Techy]

@ Moot & Amar

Oh, I see. I doubt having low fuel will have significance towards lap times or overall performance. But if it does, I'll be surprised.

 

[iamsupernasty]

@ Moot & Amar

Oh, I see. I doubt having low fuel will have significance towards lap times or overall performance. But if it does, I'll be surprised.

Trust me, it does.

If you run about 20 laps on a tank of fuel, then put on fresh tires without refueling, you can take one second or more off a lap at a track like Suzuka.

 

[Moot]

It is quite a large difference yes.
I think we have 100 litre tanks, so that's about 70kgs of weight you can run down.

 

[McKiernan]

Fuel definitely does make a difference. Doing qualifying laps before an online race, I run a few laps practice, come into the pits, get new tyres but don't take any fuel & then start lapping about a second a lap quicker

 

[NFSCARBON1]

The less fuel you have the quicker you will be able to get round the track (as the car will be lighter). If you do a lap with full fuel and fresh tyres, then almost no fuel and fresh tyres you should notice a very big difference

 

[SlyckTires]

From my own experience, I believe reducing fuel weight over the life of a race does benefit performance. Of course, you may only notice once you've stopped for new rubber, but unless it's just a placebo effect, ie, I'm driving faster laps on merit because I think I ought to be driving faster laps due to a lower car, then there is a difference.

 

[Raven_WET01]

Fuel definitely does make a difference. Doing qualifying laps before an online race, I run a few laps practice, come into the pits, get new tyres but don't take any fuel & then start lapping about a second a lap quicker

Um.. what? As discussed before, it's only about 70kg of weight if you run it dry. A few laps on anything but Sarthe, 11, and the ring might shave off 10kg at most. Unlike real life, weight does not make a significant difference in lap times. I've done this experiment in pretty much every GT game. Buy a few of the same car, upgrade each one in a different category, then keep track of lap times. You'll find weight makes the least difference on most tracks. Racing soft tires or a 🤬 load of power make the biggest difference.

Please note I'm not advocating the leaving out of any upgrades when preparing your car.

 

[McKiernan]

Um.. what? As discussed before, it's only about 70kg of weight if you run it dry. A few laps on anything but Sarthe, 11, and the ring might shave off 10kg at most. Unlike real life, weight does not make a significant difference in lap times. I've done this experiment in pretty much every GT game. Buy a few of the same car, upgrade each one in a different category, then keep track of lap times. You'll find weight makes the least difference on most tracks. Racing soft tires or a 🤬 load of power make the biggest difference.

Please note I'm not advocating the leaving out of any upgrades when preparing your car.

All I can say is what I noticed myself.