Thread: 2.7lt TDV6 fuel economy change

Sounds like you have punched an even bigger hole in the 'air' and you may have to pay for it.

bullbar turbulence may save you from a roo but not the bowser.

not trying to be a smarty .. but when I drive my W/E'er sports car (at speed) with the rear view mirrors folded in, its so much quieter, that i figure the noise is doing something.

I shudder when I see Patrols with big lift, monster tyres, Bullbar, Snorkel, Monster rack with a tinnie and a 23' caravan (= gallons per mile).. and I think the stock V8 D3 drinks a bit ??

Don't know about low speed though? maybe thats where the extra wieght kicks in ?

again not trying to get offside here .. I love all the info the Aulro site has, its a special forum and there's so much to be learn't browsing the threads..

...sorry if this (comment) is not considered constructiive

Coolum

You don't think all that extra drag and weight will not have an impact on fuel economy. I would say the changes you have experienced are to be expected.

Garry

Maybe purchase an ecu upgrade to compensate for the extra weight.
You will be surprised how much extra weight you have added. Has to have a fair impact on your fuel economy.

Cheers, Craig

I have similar "touring" build, less the awning. I seem to always get around 10l/100km out on the big road. But I only cruise at 100km/hr. Fuel consumption is about 12l/100km when travelling at 110km/hr.

If you read my original post I said I expected it to go up, and I am not complaining I am very happy with my mods and am using them for what they were intended for so if a couple of liters per 100 is the price I can live with it.

My question is just to try and see if this is the normal to be expected or if there might be another problem.

Thanks Agro, that's helpful to know.

Originally Posted by Disco4SE

Maybe purchase an ecu upgrade to compensate for the extra weight.
You will be surprised how much extra weight you have added. Has to have a fair impact on your fuel economy.

Cheers, Craig

Not surprised at the weight, I know pretty much exactly how much it is. I am wary of ECU upgrades, I know lots have done it but I never quite trust that it wont accelerate the end of turbo's and the onset of other issues. I am still very happy with the power so would only consider it for the economy.

I just don't understand how 10l/100 ever became the magic number

12 isn't a lot...

As for your kit...

Take the fox wing and rack off during normal use. No need to have it out in the elements for no reason and will remove the drag issue.

The rest, should see you down around 10.5-11l

Snorkels can use a bit more than without.

I am flat out getting much less than 11's with two roof rails,and nothing else.
So i would say what you are getting is to be expected.

If you are going by the dash read out you may be in for a surprise as it is usually optimistic by around 10% at least.

Calculating the actual l/100k's is the only way to get a true reading.