Thread: 2015 d4 fuel gauge.

Last night I ran mine down to 18km left ... and I put almost 77 litres into it.

So ... 92-77= 15 litres left. Take off 5 litres for its diesel spare fuel, and that leaves 10 litres left. At lets say around town 10/100, there should have been 80 km left that the vehicle did not know about. And who knows, there may have been.

In my wife's B class petrol, I had found its computer on a trip, said the tank was empty. I got to the next town, about 20KM later. No worries ... but on another time, it said a few K to go, and it ran out - still with some KM to go!!

With a Toyota, they say their policy was that when the fuel light comes on, you should have 100KM of range left. Also, the gauge in my Toyotas (also Lexus's) is pretty accurate, when you've learn't where the bottom of the needle is.

We need someone to run a diesel empty though ...

I wonder too, where does H2O go from the fuel in these motors? Is it all trapped in the filter system, or does it get absorbed into the tank's fuel, which would be very bad for the motor??

I was getting some greenie pangs when I first started looking at discos as most of my d4s trips will be with only me in it(and I'm not a big guy) - when I looked at the ave km's I'm doing per year the difference between the diesel & petrol in the d3s was only a few hundred $$$ ....

Originally Posted by carlschmid2002

I know, I have an F6. My D3 doesn't have instantaneous, just distance to run and average fuel economy. The average fuel economy can be quite scary with the V8 when I have just filled up and reset the computer. I put my foot down and it is like instantaneous economy, 50l/100km.

It's pretty easy (and fun) to get the 3.6L TDV8 nudging 60 per 100!

I'm a tad surprised everyone's so bemused by the distance to 'empty' figure. Analogue fuel gauges have always shown 'empty' with a healthy reserve. It was manufacturer specific even. For example you always knew in a Mitsubishi that when the fuel light came on you had around 100 km of average driving left in the tank. Some were only 50 km. It's really 'distance to drop the kids at school and find a servo'.
And the calculated distance to empty is never going to equate to a consistent fill quantity - I find filling at roughly '50 km to empty' regularly results in variations of 10 or more litres to fill the tank. But the the TDV8 can be nominally averaging anything from 9.5 to 16 l/100km... (get the 3.0L if you're choosing, people!! )

In my 13yr old bmw 3 if weren't at a servo 5 mins after the fuel light came on you were in trouble. Never drove it below a range of 50k as you only had something like 5k - found out the hard way (with toddler in tow - not fun standing by the side of the road on a hot afternoon waiting for fuel with a hungry 18mth old)

I found my defender 90 to be the worst for running out of fuel just after the light came on. I run out 1km from a servo in Tarcutta one night. I bought a Rijidij rack and always carried fuel until I got Frontrunner tanks fitted. It was really thirsty on the Hume sitting on 110km/h. I was lucky to get 400km out of 60L tank. If you slowed down just a little the economy improved significantly.

Originally Posted by Meken

In my 13yr old bmw 3 if weren't at a servo 5 mins after the fuel light came on you were in trouble. Never drove it below a range of 50k as you only had something like 5k - found out the hard way (with toddler in tow - not fun standing by the side of the road on a hot afternoon waiting for fuel with a hungry 18mth old)

13yo bmw is probably the operative phrase there!