Low fuel warning display on 2023 Yaris

[Dala]

Buy 100 octane gasoline and then there is no problem

[APS]

On 1/22/2023 at 5:14 PM, ISL said:

When the warning comes up there appears to be around 8 litres of fuel left so plenty of warning to refuel, but that does mean only 28 litres of useful fuel to play with

Most Toyotas appear to warn when there's about 8-10 litres left. Leaving plenty of margin. I've always based my refill timing on exactly your reasoning, i.e.: on a good day I should have at least 100 miles left in the tank, on a really bad day I should have 60. So I can easily do 50 miles after the low fuel light comes on and still have margin. So far, I've never run out of fuel.

[APS]

On 1/23/2024 at 5:50 PM, ISL said:

the best I can hope for now in the GR86 is around 34mpg, so panic all round when the fuel light comes on. 😬

34!! I've yet to hit 28 mpg. About 200 miles between fill ups. 😇

[bathtub tom]

1 hour ago, Dala said:

Buy 100 octane gasoline and then there is no problem

You can still get 100 octane? The only availability in the UK I know of is aviation fuel and have you seen the price of that stuff (also leaded).

[FROSTYBALLS]

2 hours ago, Dala said:

Buy 100 octane gasoline and then there is no problem

 

1 hour ago, bathtub tom said:

You can still get 100 octane? The only availability in the UK I know of is aviation fuel and have you seen the price of that stuff (also leaded).

The member, Dala, isn't in the UK ....

[Dala]

https://www.autoexpress.co.uk/articles/360984/shell-v-power-advertorial

[Cyker]

5 hours ago, Gren said:

As a new driver many years ago, I was advised to never run the car below 1/4 tank of fuel to avoid any grot/water in the bottom of the fuel tank to be sucked up into the carburettor.

That's less of a thing these days as the pickup tube is in the bottom of the fuel tank, so anything in the bottom will get sucked up pretty quick.

I've only really heard of it still being a thing with diesels, as they can get infected with clumps of microbes with float on the top of it, so when you run too low they all suddenly get sucked into the high-pressure pump!  

 

3 hours ago, bathtub tom said:

You can still get 100 octane? The only availability in the UK I know of is aviation fuel and have you seen the price of that stuff (also leaded).

Hmm, I was about to say the highest I've seen at a normal petrol retailer is 102 octane, which I'm sure was BP super, but on double-checking it seems like most fuel stations hit 97 with the max being 99! I wonder when they dropped!

You can definitely get higher octane outside of petrol pumps tho', esp. if the car supports E85!!

 

[ISL]

16 hours ago, APS said:

34!! I've yet to hit 28 mpg. About 200 miles between fill ups. 😇

Sounds like you are fully embracing the GR86 dynamics, while I am still in Yaris Hybrid mode 😬

[hind]

12 hours ago, Cyker said:

I've only really heard of it still being a thing with diesels, as they can get infected with clumps of microbes with float on the top of it, so when you run too low they all suddenly get sucked into the high-pressure pump!  

That's why you often get removable, easily accessible fuel filter with diesels. In petrol cars the filter is often incorporated with a fuel pump inside the tank.

The problem with diesels is worse if you have old (more than a few months old) fuel, which contains bio additives. These bacteria feed on them and eventually die leaving a residue. 

[Chriss27]

Not at zero lol

[Roy124]

2 hours ago, hind said:

The problem with diesels is worse if you have old (more than a few months old) fuel, which contains bio additives. These bacteria feed on them and eventually die leaving a residue. 

Many years ago, when the C130 was new in the RAF, there was a joke:

"What's green and eats Herc?"

I think this was the same problem but possibly a combination of the Herc fuel system and the fuel additives.  It had not affected other aircraft using the same fuel.