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Excess Fuel Consumption

Houdini
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bbenny Mentor

bbenny

Posted
Posted

I dont think I can get more than 400km on a full tank in my M35 - I have only filled it twice since I got it, but it is chewing a hell of a lot more than my C34 stagea which was modified - My M35 is 100% stock!

Maybe I need a tune...

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Bis-e Bee Mentor

Bis-e Bee

Posted
Posted

Just filled my tank for the first time, I never fill it but now I'm commuting :(

67.22L of 98 Vortex and the screen is telling me 545km @ 8.1KM/L.

Now I just have to control my right foot :D

pixel8r Mentor

pixel8r

Posted
Posted (edited)

The M35 should only use about 9.5-10L/100 on the highway. Anything over 10L/100km (or under 10km/L) on the highway means either something is not right or your right foot is heavy/shaky. Make sure to put the tiptronic into 5th when sitting on constant speed because otherwise the throttle is too sensitive and the torque converter will keep locking / unlocking, which will end up using more fuel. For some reason using the tiptronic makes it less sensitive and will keep the revs low and constant. :laugh:

The above is for a completely stock stagea. Depending on which performance mods you have it may do better / worse...

In my own experience, mine averaged 10.5-11L/100km on the highway when in D. Putting it in 5th using the gear lever gave me 9.8L/100km but I've seen lower than that since. I'll be doing another long interstate trip in about 5 weeks and reckon I should be able to beat 9.5L/100km this time.

Edited by pixel8r
Bis-e Bee Mentor

Bis-e Bee

Posted
Posted

WWATTTT ? 8.1 damn thats pretty high

did u just reset?

I reset a couple of days ago as I've been doing a lot of f3 driving and wanted to see how driving on the f3 was using mostly automatic mode, just slipping into manual shift for overtaking etc.

I'm hoping to be more like 10+km/L once the ECU is remapped.

pixel8r Mentor

pixel8r

Posted
Posted

Note that the M35 holds 10 more litres of fuel compared to older stageas, so 400km on a tank in a M35 is worse than 400km on a tank in a s1 or s2.

I'd say 430-500km would be a more accurate average for the M35, although it does vary quite a lot depending on where you live/drive etc.

Bis-e Bee Mentor

Bis-e Bee

Posted
Posted

I thought I would revive an old thread :down:

I done my regular commute from Blacktown to Tuggerah today and reset all the major efficiency and timing devices on the screen.

Here are the stats for my trip:

post-59561-1247833364_thumb.jpg

post-59561-1247833416_thumb.jpg

Bis-e Bee Mentor

Bis-e Bee

Posted
Posted

GAS ETA, i like it! :P

But atleast I've posted up some stats, will be interesting to see my stats after the remap in it's current configuration.

It should be putting out more power and using less fuel, can't go wrong!! :P

Once we know the remapping works and is beneficial it will be time to get a turbo to GCG for a high-flow rebuild and supply the new turbo with the dump pipe to Envy Imports for change over.

I'm excited, I've also asked Envy Imports for a quotation to supply and fit a FMIC with 3" plumbing.

The ECU should arrive from Brisbane about Tuesday, I should have paid the extra and had it sent from Japan early last week lol

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