How much petrol left?

[PixelVogue]

Hi all,

does anyone know how much is left in the tank when the light comes on? its a 1.8 se.

Trying to work out how much I get from a whole tank.

Thanks

 

[benr]

Not sure mine always says it with around 55miles left so id say over a gallon

averaging 50-55mpg ish

p.s ive usually filled up before or just when it comes on

 

[PixelVogue]

I dont have the computer on my car so cant check what is left/what mpg is.

55mpg? is that a diesel?!

 

[benr]

55mpg? is that a diesel?!

Aye yep.

It may say in the manual. But should really be filling up before the light anyway.

Im not sure on the size of the A3 tank

 

[kevandalice]

What benefit would you get by knowing how many miles you get out of a whole tank?

 

[PixelVogue]

its a 55litre tank.

Im just trying to work out what mpg I am getting. I done around 300 miles from fill till then light came on.

 

[benr]

What benefit would you get by knowing how many miles you get out of a whole tank?

well for me it means you get a quick glance of roughly how far you can drive before filling up. Without working out how much fuel you have and then working out roughly how many miles you can do on that. I use mine all the time.

 

[kevandalice]

its a 55litre tank.

Im just trying to work out what mpg I am getting.

The most accurate way to do this is fill the tank to the 1st click and reset trip counter and the next time you put fuel in, fill it again to the 1st click. note the miles and do the maths.

regards

kevin

 

[1animal1]

i know when i bought mine it took a tenner just to show a reading, light was still on!!

 

[NHN]

well I did run my s3 to the redline & still got between 30-50 miles out of it, they always allow extra past the line anyway, I would get a petrol can, stick some in, then fill up & run until empty, then work out the mpg based on 55litre tank, of course some wouldnt recommend run until dry but never caused an issue for me, just stop as soon as stutters & stick can in, but your choice but that is the only 100% definite way of knowing what a full tank will do with your driving style. even if you have a DIS on the speedo with info as its not that accurate, good but not best

 

[PixelVogue]

thanks guys, some good info

 

[benr]

The most accurate way to do this is fill the tank to the 1st click and reset trip counter and the next time you put fuel in, fill it again to the 1st click. note the miles and do the maths.

regards

kevin

This is definatly the way to do it.

I rememeber once ran out of pertol in my old polo. Student style. I had to push the car 10 yards to the pump as it wouldnt go any more. i always fill up well before now.

Ive read that it can be a big problem on diesels if you let it go empty. maybe something to do with air in the system. Ive also read that it can be dangerous to brim a diesel too. Not sure how much truth this is to modern motors tho.

 

[cornish_a3_turbo]

i know when i bought mine it took a tenner just to show a reading, light was still on!!

i get that too.
i asked my mate who is an audi tech, he said there is roughly 8 litres left, of a gallon n arf!
but that was on an a3 turbo, plus it depends how u drive it!
with no computer, and the light coming on, personally i would refuel after about 30 miles, as 30 mpg....so u know where u stand....

or be a smart ***, take a jerry can, reset the counter when the light comes on and just keep going till you stop!

 

[noelg100]

My picture of a yellow refill pump always comes on when there is 30 miles remaining. Generally I fill up before this so I don't know if it would actually give 30 miles after the light comes on.

Oh and the constant beep every time you turn on forces you to the petrol pump

 

[cornish_a3_turbo]

i have ren mine 4 9 miles of normal driving when it says 0....i suppose every car is different.
try the jerry can thing..!

 

[1animal1]

nooo Cornish... as soon as i picked the thing up i filled it up.... infact £30-35 goes in weekly whether i need it or not, most times i have some left so it collects for my bigger journey's- otherwise its when the light comes on, hate it when you bin driving on the light for few days then wack petrol in, ends up costing shed loads more lol

 

[buckas]

My picture of a yellow refill pump always comes on when there is 30 miles remaining. Generally I fill up before this so I don't know if it would actually give 30 miles after the light comes on.

Oh and the constant beep every time you turn on forces you to the petrol pump

same, never took it down to the dregs

 

[SDO]

mine comes on with 25 miles left always wonder how much more after 0 miles you get after watch top gear, not the most accurate of programs i know.

 

[NHN]

Yeah I've been on 0 miles often & got loads of miles afterwards

 

[Essflee]

just the thought of running my car on 0 miles makes me cringe, really not a good thing....

 

[cornish_a3_turbo]

nooo Cornish... as soon as i picked the thing up i filled it up.... infact £30-35 goes in weekly whether i need it or not, most times i have some left so it collects for my bigger journey's- otherwise its when the light comes on, hate it when you bin driving on the light for few days then wack petrol in, ends up costing shed loads more lol

I dont do many miles! only on the weekends...!

 

[cornish_a3_turbo]

just the thought of running my car on 0 miles makes me cringe, really not a good thing....

and y...? its not bad for your car!

 

[benr]

and y...? its not bad for your car!

really?

nearly everyone i have spoken to do not recommend it due to the dregs having more crap in.

Especially i have read that its really bad for a diesel and the engine has to be de-aerated

 

[1animal1]

my understanding is that a diesel running out of fuel is a big no no

 

[cornish_a3_turbo]

really?

nearly everyone i have spoken to do not recommend it due to the dregs having more crap in.

Especially i have read that its really bad for a diesel and the engine has to be de-aerated

yes we all no its bad 4 diesel....but i have petrol. i have always ran it empty then filled it....

i dont think its harmfull at alll.....maybe sum 1 wud know??

 

[Essflee]

really?

nearly everyone i have spoken to do not recommend it due to the dregs having more crap in.

Especially i have read that its really bad for a diesel and the engine has to be de-aerated

exactly...

 

[Nilz]

I remember running out of petrol on my Mark 2 Golf Gti a few years ago, and then when i filled it up, it ran spluttery for a good few miles, when i asked my mechanic, his simple answer was "its all the **** at the bottom of the tank that has been picked up and is running through the system"

So i would say its not a very good idea to let it run (however if you think about it logically, wouldnt that get picked up everytime you fill up????)

 

[cornish_a3_turbo]

my point exact.