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AIBU?

Share your dilemmas and get honest opinions from other Mumsnetters.

£10 for 30 miles??

105 replies

patooties · 13/10/2026 00:12

I’ve just put a tenner (bang on a tenner) worth of unleaded fuel into a 1.5l car. It was reading 55 miles left as I did it - after £10 of fuel it rose to 86miles.

does this sound like the petrol station is stealing - or is that really how many miles a tenner of fuel gets? I don’t have that setting visible on my cars dashboard.

WIBU to go back to them or report them or something?

OP posts:
RandomMess · 13/10/2026 00:14

How many miles left is not that accurate. You should have a tank fill indicator and be looking at that.

PickAChew · 13/10/2026 00:15

A lot of fuel gauges disregard a small portion of what's in the tank as it's needed to keep everything running smoothly.

Yogafiend · 13/10/2026 00:17

Agree with previous posters how many miles is left is not accurate at all! I often drive on 0 miles left from my kids school home which is about 3.5 miles and then my husband drives it to the petrol station he likes which is about 3 miles. 😂. So wouldn’t go by that

DesperateforSunshine · 13/10/2026 00:17

With respect you’re talking nonsense. The ‘miles left’ is all down to how you drive and no 1.5l is going to be the same as another 1.5l. It will be accurate as will be the £10 dispensed - if you have an issue you need to speak to Weights and Measures - which may be dealt with by the council. My Mercedes GLS would gobble £10 with 6miles and that is it I was careful.

patooties · 13/10/2026 00:25

It was the miles on the clock as I pulled onto the station. When I turned it back on it had barely risen. I know these things are not 💯- my question is ‘is it feasible on a not 4l tank of a car’ that a tenner buys so few miles.

OP posts:
Ablondiebutagoody · 13/10/2026 00:26

Depends on the car and the price of the petrol. At £8 per gallon and a car that does 50mpg, you are looking at about 60 miles.

We need more info.

patooties · 13/10/2026 00:29

A 1.5l SUV type (small one) maybe 5 years old? Honda? Can you tell it’s not mine!? The petrol was 1.79 so about 5 to 6 litres dispensed allegedly ?

OP posts:
TheBroonOneAndTheWhiteOne · 13/10/2026 00:30

It sounds about right to me.

Noodle9951 · 13/10/2026 00:31

Fuel gauges and miles remaining counters are not accurate. If you want to check real mpg you need to fill tank to one click. Note miles or set trip to zero. Drive until near empty. Fill take again to one click. Convert the amount of fuel needed in ltrs to uk gallons. Then divide the distance covered by the gallons used.

The number you get will vary according to where you have been. Mixed local driving my last car got around 43mpg. A roads at 50-60mph up to 54mpg. Motorways around 47,48mpg.

The only thing miles remains is good for is warning that you need fuel soon.

If you put in £10 fuel that is well over a gallon even at current prices so any average car will be good for at least 30 or 40 miles, probably more.

Ablondiebutagoody · 13/10/2026 00:35

patooties · 13/10/2026 00:29

A 1.5l SUV type (small one) maybe 5 years old? Honda? Can you tell it’s not mine!? The petrol was 1.79 so about 5 to 6 litres dispensed allegedly ?

That's a thirsty little Honda........or they are fucking you.

Although the Government are fucking you harder. £5 of that went straight to them.

patooties · 13/10/2026 00:46

I think I’m going to report it - just wanted to check if I was way off - I don’t think I am.

OP posts:
FiveEightNine · 13/10/2026 00:58

patooties · 13/10/2026 00:46

I think I’m going to report it - just wanted to check if I was way off - I don’t think I am.

Don't bother.

Your car's "miles left" counter isn't a reliable or official measuring device in any way and it's results are influenced by many variables including being very slightly uphill or downhill.

Noodle9951 · 13/10/2026 01:27

patooties · 13/10/2026 00:46

I think I’m going to report it - just wanted to check if I was way off - I don’t think I am.

You are if you think the miles remaining is any accurate measure of the fuel you put in.

Delphiniumandlupins · 13/10/2026 01:43

The miles remaining counter isn't accurate enough over such small amounts for you to make a complaint.

Peakyblinder18 · 13/10/2026 02:16

You could probably run the tank down to zero and get a few miles.
Not helpful I know.

StuNur85 · 13/10/2026 02:21

I stuck 30 in mine today and got 108 miles. It's due to the rise in price of fuel.

AutumnLoverButNotYet · 13/10/2026 02:24

It would be utterly pointless reporting it.

I had to use a rental car recently (because some utter jerk reversed into mine) & I was astounded at how much it cost to top it back up to full when I had only done 250 miles. Unfortunately, I can't remember exactly how much it cost. It was a Vauxhall Frontera, nice enough Car, but have to pay to run it all the time. And I get shit mileage in my Ford focus.

ItsOnlyHobnobs · 13/10/2026 02:25

The measure you are using as evidence is not accurate.

I often fill my car up and the mileage remaining on the dial will have increased between a journey of 15/20 miles from the last reading it gave before I switched off the engine.

I take it that you not knowing this particular car, and you putting only a tenner in, that you are not a regular driver of a vehicle? It can be a nasty shock if it’s unfamiliar.

SpreadsheetLife · 13/10/2026 03:40

£10 of fuel will barely register on a fuel gauge. We put £10 in our hire courtesy car the other day and the range increased by a only 7 miles! The garage is not ripping you off - they would be out of business within weeks.

BobTheTeckel · 13/10/2026 04:26

You aren't listening. By only putting £10 in I'm surprised the fuel gauge/milage rose at all. If you filled it up the fuel gauge would be accurate.
The mileage is the average of what has been driven recently. I have a Volvo that can do as little as.11mpg around town, but quadruple that on a motorway.

rwalker · 13/10/2026 04:38

take note of your mileage and fuel gauge then work it out for yourself
then report but even that method isn’t the most reliable

we’ve never had a car where miles left and mpg is accurate

Houndsahollering · 13/10/2026 04:58

The miles remaining is guessed by the cars calculator based on the most recent average fuel consumption. And yes for 5-6 litres of fuel if all you’re doing is stop-start local 20-30mph town driving, then a rough increase of 30 miles for £10 is about right. If you stuck your £10 in and then got on a decent A road or motorway and were cruising at 60mph+ it will go up, or if you’d just done a long steady drive it would estimate higher.

Bedroomdilemmas113 · 13/10/2026 05:52

You’re just in denial about how much fuel prices have increased. I’d get from one pump to another on £10 in mine.

HikingHippo · 13/10/2026 06:18

10 quid would barely cover the bottom of my tank at the moment, the price of fuel is ridiculous currently. Diesel is now over 2 quid a litre here 😭

But - your miles remaining will vary depending on your driving conditions. I left home yesterday on about 50 miles and the fuel light on and got to work with 76 showing. Its based on your driving - lots of short start/stop journeys will show less miles than one long, consistent drive.

Sherararara · 13/10/2026 06:23

You should definitely report it OP.
Lets us know how it goes. 🍿