The Grenadier Forum
Register Now for enhanced site access.
INEOS Agents, Dealers or Commercial vendors please contact admin@theineosforum.com for a commercial account.

General B57 Trying to run out of fuel - first try, unsuccessful

alexandruast

Grenadier Owner
Local time
2:35 PM
Joined
Apr 2, 2024
Messages
55
Reaction score
106
Location
Romania
Hello everyone,
I prepared myself mentally and logistically to run out of fuel, to be able to check several things:
- How does the IG behaves when out of fuel, early signs, if there are any.
- What is the real capacity of the fuel system.
- How easy it is to get it back on track.

This first try was on a road I drive twice a week, late evening, close to midnight. The usual trip is ~83Km and 1h15m, mostly rural with a few roundabouts and intersections. My usual average fuel consumption on the IG is 12L/100Km.

Before heading back home, the IG was showing "Refuel Now", the fuel gauge was at 25% displayed in red, ODO at 6632 and the estimated range was 50km. Fist pic taken a bit after leaving:
1717882827488.jpg

Arrived at gas station 87Km later with remaining range 63Km 😆 (I drove like grandma, but the experiment was also about trying to get as far as possible with the remaining fuel):
1717882912970.jpg

Average speed:
1717883028355.jpg

Fuel consumption (I never ever got below 11.5 in the +6KKms driven in this thing):
1717883051537.jpg

Driven distance and fuel remaining in tank:
1717883199986.jpg

Fillup 88 liters until first click:
1717883233638.jpg

What I've learned from this experiment:
1. The fuel gauge is totally unreliable and erratic, on both fuel left and estimated distance.
2. The IG can really achieve 7L/100Km if driven like grandpa.
3. Driving like grandpa will still get you there and the time difference is insignificant, but the fuel economy is awesome.
4. Fillup capacity was odd, either I'll run out of fuel before reaching 0km range, or the fuel capacity is greater than 95 liters (TBD in the next run).
 

Attachments

  • 1717883146903.jpg
    1717883146903.jpg
    201.1 KB · Views: 5

Tazzieman

Grenadier Owner
Lifetime Supporter
Founding Guard
Local time
9:35 PM
Joined
Sep 30, 2021
Messages
5,986
Reaction score
12,069
Location
Tasmania
I think someone surmised the tank is around 95 L capacity.
 

DaveB

Grenadier Owner
Local time
9:35 PM
Joined
Mar 18, 2022
Messages
7,020
Reaction score
14,233
Location
Toogoom, Fraser Coast Queensland
Hello everyone,
I prepared myself mentally and logistically to run out of fuel, to be able to check several things:
- How does the IG behaves when out of fuel, early signs, if there are any.
- What is the real capacity of the fuel system.
- How easy it is to get it back on track.

This first try was on a road I drive twice a week, late evening, close to midnight. The usual trip is ~83Km and 1h15m, mostly rural with a few roundabouts and intersections. My usual average fuel consumption on the IG is 12L/100Km.

Before heading back home, the IG was showing "Refuel Now", the fuel gauge was at 25% displayed in red, ODO at 6632 and the estimated range was 50km. Fist pic taken a bit after leaving:
View attachment 7859267

Arrived at gas station 87Km later with remaining range 63Km 😆 (I drove like grandma, but the experiment was also about trying to get as far as possible with the remaining fuel):
View attachment 7859268

Average speed:
View attachment 7859269

Fuel consumption (I never ever got below 11.5 in the +6KKms driven in this thing):
View attachment 7859270

Driven distance and fuel remaining in tank:
View attachment 7859272

Fillup 88 liters until first click:
View attachment 7859273

What I've learned from this experiment:
1. The fuel gauge is totally unreliable and erratic, on both fuel left and estimated distance.
2. The IG can really achieve 7L/100Km if driven like grandpa.
3. Driving like grandpa will still get you there and the time difference is insignificant, but the fuel economy is awesome.
4. Fillup capacity was odd, either I'll run out of fuel before reaching 0km range, or the fuel capacity is greater than 95 liters (TBD in the next run).
I am a grandpa with 13 & 14 year old grandsons and a 3 year old granddaughter.
I can assure you that you will not get very good fuel economy driving like me.
 

LeftCoastOverland

Grenadier Owner
Local time
9:35 PM
Joined
Jun 21, 2023
Messages
255
Reaction score
340
Location
Rosebud VIC, Australia
I pumped in 90.9L last week.
My remaining range dropped off completely to just “- -“ before hitting 50KM….

95L tank would be nice to know. Not sure why the manual shows 90… maybe the remaining 5L fit in the filler neck?
 

rovie

Grenadier Owner
Lifetime Supporter
Local time
7:35 AM
Joined
May 19, 2022
Messages
1,964
Reaction score
3,736
I am a grandpa with 13 & 14 year old grandsons and a 3 year old granddaughter.
I can assure you that you will not get very good fuel economy driving like me.
But that's down to the grandpa, not the grandchildren. 😂
 

Shaky

Grenadier Owner
Forum Donor
Local time
7:35 AM
Joined
Apr 28, 2022
Messages
1,377
Reaction score
2,906
I pumped in 90.9L last week.
My remaining range dropped off completely to just “- -“ before hitting 50KM….

95L tank would be nice to know. Not sure why the manual shows 90… maybe the remaining 5L fit in the filler neck?

I noticed this, the range estimate will never go below 50, as when it gets there it just goes blank, so you really are flying blind after that.
 

bemax

Grenadier Owner
Lifetime Supporter
Local time
1:35 PM
Joined
May 12, 2022
Messages
2,439
Reaction score
4,769
Location
Germany
I don’t agree that the fuel gauge is erratic. It might be a little bit inaccurate in the lower section, but it does not behave strange or unpredictable.
I see the point in your test and I appreciate it as it gives all of us some more information for the one trip we miscalculated the quantity of fuel wrong (for any reason).
In my opinion you had all the information that the calculated range had been affected by a style of driving that was completely different than the normal one. So it had to recalculate and correct the consumption over and over.
As all manufacturers Ineos will do the range calculation with a good safety margin at the bottom. Furthermore they probably only count the fuel in the tank itself and not in the filler neck.
I can easily put in another 4 litres after the first „click“ this is an extra of more than 50 km the way you drove the last part of the trip which will be out of reach for calculation in the first 95 % of the total mileage.
Those are only my thoughts about this topic and I am keen to get more information about the max capacity of the tank (combined with the information whether it had been filled to the top of the filler neck or not)
Best regards
bemax
 

DenisM

Grenadier Owner
Lifetime Supporter
Local time
9:35 PM
Joined
Jan 26, 2022
Messages
2,052
Reaction score
4,164
Location
Brisbane, Queensland Australia
Not sure why one would want to run the tank to "fume" level. My local service manager "hinted' to me that the tank capacity was indeed slightly in excess of 90L... but he wasn't certain exactly by how much. The slight excess may well be to protect the in-tank pump which relies on surrounding fuel for cooling. Overfilling, as mentioned previously, can cause issues with the carbon vapour-filter and trip fuel level sensor code P0416....
Prudent fuel planning and management has some benefits... :unsure:
 

LeftCoastOverland

Grenadier Owner
Local time
9:35 PM
Joined
Jun 21, 2023
Messages
255
Reaction score
340
Location
Rosebud VIC, Australia
Not sure why one would want to run the tank to "fume" level. My local service manager "hinted' to me that the tank capacity was indeed slightly in excess of 90L... but he wasn't certain exactly by how much. The slight excess may well be to protect the in-tank pump which relies on surrounding fuel for cooling. Overfilling, as mentioned previously, can cause issues with the carbon vapour-filter and trip fuel level sensor code P0416....
Prudent fuel planning and management has some benefits... :unsure:
I won’t be playing the bottom of tank game again any time soon.
Reading in the manual: emptying the tank will cause fuel pump damage. That’s the extent of the info offered.

But good to know 90L can be burned and she’ll still tick a bit longer.
 

DaveB

Grenadier Owner
Local time
9:35 PM
Joined
Mar 18, 2022
Messages
7,020
Reaction score
14,233
Location
Toogoom, Fraser Coast Queensland
I pumped in 90.9L last week.
My remaining range dropped off completely to just “- -“ before hitting 50KM….

95L tank would be nice to know. Not sure why the manual shows 90… maybe the remaining 5L fit in the filler neck?
My Mercedes had a 69 litre tank.
Plus a 10 Litre reserve that wasn't registered.
 
Local time
12:35 PM
Joined
Aug 9, 2023
Messages
261
Reaction score
526
Location
Australia
Running the fuel too low constantly is not good for the injectors as modern low sulphur diesel does not lubricate as well as the less environmentally friendly diesel of the past add the far tighter injector tolerances and multiple injection events for each combustion cycle there is less lubrication as the fuel in the tank increases in temperature. The returning fuel does not appear to go through any fuel coolers back to tank.
 
Back
Top Bottom