Rb25De Fuel Consumption?

[ShyBoi]

On a fuel light note I can have mine on Empty and still get another 100kms out of the tank...so until about 2 years after having the car was the first time I ever saw my fuel light come on.

[Miguelone]

I was on the lower half of empty yesterday and the car kept dieing down and then surging forward like it was about to die.

No light came on, where is it supposed to be on 33's?

Edited May 24, 2011 by miguelegant

[Grey]

when does the fuel light come on? when theres 20L left in the tank, are stock tanks 65L for the r34?

i refuelled today, with city driving and heavy right foot i average 16L per 100kms, today i can proudly say there is nothing wrong with the fuel consumption of my car as it averages 11.40L/100km WITH city driving, a restricted right foot and the once off flooring!

[ermi]

yes they all have a fuel light. it may be blown though (or there is a short in the system or issue with the sender). but they generally all come on with about 10L left in the tank, so if you are filling up with less than around 55L then you aren't getting the tank low enough for the light to come on. there are a few ways to test if the light is working. 1 is to pull the return line off the injector rail and run it into a bucket then run the car until it either runs out of fuel or the light comes on (best to do when the car is low on fuel). another would be to pull the fuel gauge sender out of the tank. yet another would be to figure out which wire in the fuel sender wiring is the one that sends the signal to the dash and short it out and see if the light comes on. or you could simply drive around with a few litres of fuel in a jerry can and just keep driving until either the light comes on or you run out of fuel.

i also have a feeling that in the 33's it doesn't come on until below the line. i don't think mine came on until it was at the top of the E

cheers for that, shall have a look on the weekend. ive had the fuel guage sit dead on the E line without the light coming on. then again i only got 49L into it on fill up

[Borci88]

Yep also gotta say today with it real low in the tank, going around corner the car started to splutter and almost stall as the fuel sloshed around in the tank, don't know if that's got to do with the fuel pump not pulling enough or not but no fuel light came on thats for sure.

[mad082]

i know it's not a commodore, but i'd posted in here before about the fuel economy of my VT commodore and how the best i'd gotten was 8.74L/100kms. this was on E10. i put a tank of 91 octane in it last week. filled up tonight on my way home. 8.24L/100kms. that tank was only driving to and from work, which is mostly highway driving. if the mornings weren't quite so cold (been a few 5 degree mornings) or the car was kept in a garage and not out in the front yard then the economy would be a bit better since the car would come up to temp a little bit quicker. as it is, on the way to work the car doesn't come to temp until i reach the edge of town (about 7 kms away), so the part of the trip that is start/stop is also the part of the trip where the car is running the richest.

[Darmanin10]

Yeah I'm getting terrible kilometers, usually 380km then the fuel light will come on. That is heavy city driving to work. But it looks like the turbo one day soon is gonna help

Did you win the Just Cars comp????

[MR VSPEC]

I have a r33 GTR and a gts my GTR gets almost 480 98ron my gts only gets 300 not eaven

[Grey]

Just had a pod filter installed and changed the coilpacks about 1 month ago, after the pod filter change and controlled sensible driving, I managed 11.03L/100km. O2 sensor working fine, I'm happy, I could perhaps even turn it down more and become a granny driver and maybe I'll get 9-10L per 100km who knows

Full tank estimate: 700km

[dori34]

my old engine the rb25de neo with 5spd manual used to get 470km~ everyday driving with a 3" catback, on freeways i could get close to 600km.

now my rb25dett gets 350km~ every day driving if im lucky and 450-480km on freeways :\

[Mayuri Krab]

I get constantly 12.5 - 13.5L/100km for normal driving (mix of city & high/freeway)

Lowest I have seen is ~10L/100km & that is country driving & sitting at 110-120km for ~400kms.

Car is an automatic so that probably chews more fuel compared to the manual counter parts.

Might go & change the spark plugs (haven't being changed for ~35,000kms) & give the POD a clean as it is covered with shit & dirt atm...

[iseekool]

when does the fuel light come on? when theres 20L left in the tank, are stock tanks 65L for the r34?

i refuelled today, with city driving and heavy right foot i average 16L per 100kms, today i can proudly say there is nothing wrong with the fuel consumption of my car as it averages 11.40L/100km WITH city driving, a restricted right foot and the once off flooring!

R34 sedans (not sure about coupes) have 65L fuel tanks.

If you change your O2 sensor, clean the AFM and have a new air filter - you should be able to have economy around 10.5L to 11L/100km urban.