fuel accuracy

[alokin123]

i have a Thai built Focus Sport Auto Petrol
How accurate is the fuel gauge? Today i filled up. It said i had about 30km to empty, the fuel light was flashing so i filled up. 45L
I thought the tank held 55L? It’s been like this for a while reporting low tank and i can only get to 45L or so when refilling. Is the fuel estimate wrong?

[rand0mn00b]

yeah my LT Focus is the same. The most I usually ever fill up is about 47L and that's if I run it down to nearly 0 on the trip computer.

[yuruga]

Mines the same Thai Sport Manual. Most I have put in is 49L but mainly 45L.

I also like the fact I have some reserve @ 0 DTE if ever needed.

[alokin123]

this seems like a design problem. Are you saying that both indicators are wrong? If the kms to empty say 0 and the fuel gage shows empty but there is still fuel in the tank that is very concerning and annoying because I don't know when to fill up.

[jimmyxr6t04]

Originally Posted by alokin123

this seems like a design problem. Are you saying that both indicators are wrong? If the kms to empty say 0 and the fuel gage shows empty but there is still fuel in the tank that is very concerning and annoying because I don't know when to fill up.

It's not a design fault, it's built in tolerance. Why would you want DTE to read 0, and have no fuel left? What's the point? You fill up when your fuel starts to get low... Why would you want to drain every last drop out of it and hope to roll into the servo with 500ml left?

I like the fact that when my car says i have very low fuel, i usually still have about 8L in the tank. I usually fill up before it gets to that though.

If there was no tolerance built in, imagine all the numpties driving around with DTE on 10km and breaking down a few kms from the servo...

[Ratmick]

My South African LV MKII TDCi shows zero km to empty with 3-5 litres left in the tank. Given the car uses under 6km/litre on the open road I still have a few to go...

Mick