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Fuel gauge

19788 Views 22 Replies 12 Participants Last post by  Timur
At what point does the fuel gauge indicate the "reserve" of the fuel tank?

Last time I fueled up after the yellow pump light came on. But I did not manage to get more than 30 litres in. And it is a 46 litre tank.
And with 16 litres left I can drive another 200 kilometers.

So I wondered what is the most extreme needle point at which there is about 6 litres left?
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well i will let you find out as i never let the car get under half a tank :)
From the manual:
Fuel tank capacity (Reference) 43 L (11.4 gal., 9.5 lmp.gal.)
Having such a big reserve is not accidental. The remaining fuel is used by the petrol pump for cooling and lubrication. Its replacement is not a cost you want to have as it might not be covered by the warranty.
So fill the tank once you see the Tank empty light and you will have one less issue to worry for.
On my previous Auris Hybrid the fuel indicator started slowly flashing at about 10 litres remaining.
At 5 litres it started flashing fast.
I never had any problems during the 6 years I drove it with the fuel system.

Here in the Netherlands you don't want to fuel up at a highway pump, they are far more expensive. So driving on to your destination is what I do normally. Distances are short here.

And I hate fueling up ;)
From the Japanese manual capacity of the fuel tank is 43 liters. You should get the yellow pump light @ 6.4 liters remaining.
The answer is simple.

The hybrid system will prevent starting the engine, unless You have at least 7.5 L of fuel in the tank.

See page 94 in the Owner manual:-

■ Running out of fuel
When the vehicle has run out of fuel and the system can not be started,
Refuel the vehicle with at least enough gasoline to the low fuel level
Warning light (P. 598). If there is only a small amount of fuel, the
Hybrid system may not be able to start. (The standard amount of fuel is about
7.5 L [2.0 gal., 1.7 Imp.gal.], When the vehicle is on a level surface. This value
May vary when the vehicle is on a slope. Add extra fuel when the vehicle is
inclined.)

RTFM (Read The F*****g Manual...)
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felixis said:
The answer is simple.

The hybrid system will prevent starting the engine, unless You have at least 7.5 L of fuel in the tank.

See page 94 in the Owner manual:-

■ Running out of fuel
When the vehicle has run out of fuel and the system can not be started,
Refuel the vehicle with at least enough gasoline to the low fuel level
Warning light (P. 598). If there is only a small amount of fuel, the
Hybrid system may not be able to start. (The standard amount of fuel is about
7.5 L [2.0 gal., 1.7 Imp.gal.], When the vehicle is on a level surface. This value
May vary when the vehicle is on a slope. Add extra fuel when the vehicle is
inclined.)

RTFM (Read The F*****g Manual...)
I think you have interpeted the manual wrong.
From my experience I know (via Techstream) that if there is only 3.5 liters left in the tank (point where the gauge needle is at completely empty), the car will start normally.

The way I interpet the manual:
If you run out of fuel completely (engine stalls) you have to fill up the tank with at least 7.5 liters (point where the pump light would come on).
Other wise the car will not start. So putting in less fuel won't recover from a completely empty tank,
My point of view:
tank has a capacity of 43 liters.
Maximum I've ever been able to tank was 35,3 liters. (At that moment I had a remaining autonomy of less than 10 km; and fuel indicator was almost at the R mark). I assume when totally empty it would be 35,5 liters.

So 35,5 + 7,5 = 43 liters capacity.

With 7,5 liters being the minimum amount of fuel to be present in the tank for the car to keep working.

I've never tried going beyond the R marker but suppose the car would stop and cannot start anymore until refilled.
On the German C-HR forum someone had this issue.. low on fuel and on the way to fill her up.. the ICE stopped wthout any notification.
He was very lucky to make slowly the last KMs on the EV battery and drove into tankstation with 1 EV bar left..
Amount of liter that went in: 42,87L.
G
In my C-HR (1.2 Turbo) I also have issues with the "low fuel level warning light".
The fuel tank capacity is 50 liters and when the warning light is on, there should be only 7,5 liters remaining. But when I refuel immediately after the light blinks, I can only add 35 liters. So my warning light blinks way too early.
Dat is raar. Ik tank regelmatig pas als de reserve lamp gaat branden en dan ziit er nog ongeveer tien liter in.
Bij zomerse temperaturen rijd ik 1:14 a 1:15. Als de reserve lamp gaat branden heb ik dan meestal rond de 600 km gereden en dan gaat er rond de 40 liter in. Heb ook wel een een kilometer of 40 verder gereden nadat de lamp ging branden en toen ging er bijna 43 liter in. De wijzer stond toen ook nog niet op helemaal leeg. BTW, als het vulpistool afslaat moet je geduld hebben om de laatste liters erin te krijgen. Na afslaan vulpistool daarna beetje bij beetje is 5 liter.

(That's weird. I only regularly tank when the spare light comes on and then there are about ten liters left. In summer temperatures I drive 1:14 km/l a 1:15 km/l. When the spare light comes on, I have usually driven around 600 km and then it is around 40 liters what goes into the tank)
BTW, if the filling pistol stalls you have to be patient to get the last 5 liters in it.
Why not just refuel on every opportunity when there's less than a half tank of fuel left? It's even not advisable to drive with very little fuel in a tank. I saw low fuel light only once in my car - when I took it from the dealer.
DutCHR said:
On the German C-HR forum someone had this issue.. low on fuel and on the way to fill her up.. the ICE stopped wthout any notification.
He was very lucky to make slowly the last KMs on the EV battery and drove into tankstation with 1 EV bar left..
Amount of liter that went in: 42,87L.
I don't understand I could only do 35,3 liters then.
For getting that much in the filling pistol stalled already a few times. I'll try to put in more next time but don't think it'll make much difference.

Is there anyone who ever got close to being able to tank 43 liters on the hybrid version?

Karmalakas said:
Why not just refuel on every opportunity when there's less than a half tank of fuel left? It's even not advisable to drive with very little fuel in a tank.
Because if you wait until it's almost empty you only have to fuel up half the number of times :)
I think for the Hybrid:

Light empty tank is lit : about 30-32L
Range on display to 0 km : about 35L
ICE will stop working : about 42L
G
He're a screenshot of my display (1.2 Turbo) right after the warning light lit.

Land vehicle Watch Vehicle Speedometer Motor vehicle


As you can see I drove 512.9km and according to the "estimated distance" I can only drive 32km.
So according to the boardcomputer I can drive approx 550km with 50 liter of fuel. That is a consumption of 11km/L. Even my Celica didn't have a consumption like that :mrgreen:

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How much fuel you get in at that moment?
When you drive it till the display is 0 it should be about 3L more..

My hybrid does around 18-21km/L and have around 50km left on display when the light is lit. Also close to 3L ;)
G
DutCHR said:
How much fuel you get in at that moment?
When I refuel immediately after the warning light is lit, I can get in 35 liters.
I drove one time with the fuel light on about 30 km. Stopped at a pump , I was able to put about 33L.
I can rarely put more than 30 - 31L l after the light is on. I usually start looking for a pump as soon as I am below 1/4 of the fuel tank. Only on long trips I let the fuel light come on than stop to fuel..
It looks like the reserve is about 10 L if the tank does have 42 L.
C-HR 1.8 hybrid

Fuel receiver gauge indicates F: 38.3 L
Fuel receiver gauge indicates 3/4: 30.1 L
Fuel receiver gauge indicates 1/2: 21.3 L
Fuel receiver gauge indicates 1/4: 12.4 L
Fuel receiver gauge indicates E: 4.3 L
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