Fuel Economy Figures, Post yours up!

[lindsay84]

SR Single Cab Manual 2007
Steel Tray3mm,Snorkel,3 inch exhaust, Bull Bar/Brush bars, Trundle Tray,Snorkel,Water Tank,2 inch Lift,15% injectors(BDG) and NPC HD clutch(BDG)
265/75/16 BFG's .Car Weighs around 2500 dry without passenger.Cleaned Inatke,EGR.Plated and Catch Can,Was Getting around 550k tank before injectors changed now lucky to get 500k off 67lts.
13.4lph
Towing about 700 kg boat/trailer 17lph
Need to get the economy back/
I got the bigger injectors in now but its chewing the fuel standard ecu
Did Fraser 3 weeks ago and calculated 20lts hundred/15psi tryes and was barely loaded up/probally around 2700kg/Pretty thirsty don't you think
Thoughts on the Ecu shop Super 4 or Ecu Retune?
Suggestions anyone

[Krat]

SR Single Cab Manual 2007
Steel Tray3mm,Snorkel,3 inch exhaust, Bull Bar/Brush bars, Trundle Tray,Snorkel,Water Tank,2 inch Lift,15% injectors(BDG) and NPC HD clutch(BDG)
265/75/16 BFG's .Car Weighs around 2500 dry without passenger.Cleaned Inatke,EGR.Plated and Catch Can,Was Getting around 550k tank before injectors changed now lucky to get 500k off 67lts.
13.4lph
Towing about 700 kg boat/trailer 17lph
Need to get the economy back/
I got the bigger injectors in now but its chewing the fuel standard ecu
Did Fraser 3 weeks ago and calculated 20lts hundred/15psi tryes and was barely loaded up/probally around 2700kg/Pretty thirsty don't you think
Thoughts on the Ecu shop Super 4 or Ecu Retune?
Suggestions anyone

Read this one and thought I would post my last trip up as a comparison.
2007 D4D Dual Cab, New Baileys Injectors, Catch Can, BFG 31, 10.5R 15's, Bullbar. The rest is Stock standard.
Trip 310km towing a trailer with approx 500kg concrete blocks, 316km return trip empty.
Total 626km, 59.5 lts to refill. Sat on 100km/per hr with cruise.
Very happy with that.

[greysrigging]

A 1027.2klm run between fills including some gravel and 4wdriving, but mostly higher speeds along the Kakadu and Arnhem Highways 110klm/h +.....so pleasantly surprised for the figures of 11.8L/100klm. This is pretty much the best I will ever get and with diesel at a historic low of $1.17 in Darwin one is almost temped to stop ....er..... 'finding' fuel from work......lol !

[rds_929]

i was getting 720-680 in my new sr5 auto and now all i get is 630km is there any reasons for the drop could a dirty air filter make this much of a difference ??

[DeadlyBeast]

You picked up your lux in August last year?
This will have a significant impact on your fuel economy:
http://www.bom.gov.au/climate/dwo/201508/html/IDCJDW3049.201508.shtml
Significant temp difference between seasons

[rds_929]

yeah was about then maybe a little earlier. so the change in weather could really make that much of a difference ??

[DeadlyBeast]

Short answer - Yes, so can humidity. Without knowing exactly where or how you drive, short city trips or long highway hauls there are many environmental factors that all contribute. Melbourne AP has about on average a 16 degree difference of maximum temp from winter up to now. Add radiant heat from off the bitumen and it could easily exceed 20 degrees at airbox inlet.
Add to that your roof rack, 31.6" AT tyres and any other accessories - it all adds up... assuming the vehicle has otherwise been well maintained and fuel quality is consistent.
Some may argue cold temps reduce fuel economy - possibly true for sub zero environments.
Wait and see what happens in a few months

[rds_929]

Short answer - Yes, so can humidity. Without knowing exactly where or how you drive, short city trips or long highway hauls there are many environmental factors that all contribute. Melbourne AP has about on average a 16 degree difference of maximum temp from winter up to now. Add radiant heat from off the bitumen and it could easily exceed 20 degrees at airbox inlet.
Add to that your roof rack, 31.6" AT tyres and any other accessories - it all adds up... assuming the vehicle has otherwise been well maintained and fuel quality is consistent.
Some may argue cold temps reduce fuel economy - possibly true for sub zero environments.
Wait and see what happens in a few months

wow thats interesting. yeah i do a mixture of highway and short trips always use bp diesel and the car's only about 6 months old. it's due for a service soonish so ill let them know aswell had a peak at the air filter and looks pretty dirty hopefully the change it and might help might cause a bit. going be even worse once the lift , bullbar , winch , spotties and bash plates go on

[DeadlyBeast]

Dirty air filter and big rubber both will be your main factors there. Blow out you air filter every 5000km and after each off road track dust ingress. Check out the cleaning MAP filter and MAF sensor thread too. Keep on top of that maintenance - efficiency will follow

[xychix]

Any one a clue if luxies tend to drink a bit to much their first few K km's?

I'm still running ~1L on 9,4 KM's with a brand new non modded 2.5 intercooled manual.
No heavy foot, no cruise control, mainly paved highway (Europe ~0 to ~10 Celcius atm.)

I was hoping to make 1:11 or 1:12 on average.

Still <2000 km's on the clock.

[rds_929]

Dirty air filter and big rubber both will be your main factors there. Blow out you air filter every 5000km and after each off road track dust ingress. Check out the cleaning MAP filter and MAF sensor thread too. Keep on top of that maintenance - efficiency will follow

legend cheers mate apperciate it !! is there much involved with the map filter and maf sensor ??

[DeadlyBeast]

Start here for D4D engine:
http://www.newhilux.net/phpbb/viewtopic.php?t=20711
Interesting info through out the entire thread
Some users have noticed improved economy after cleaning - but most have done at least 20-100K before cleaning MAF or MAP

[rds_929]

i know its prob a stupid question but would not having the tonneau cover on increase the fuel consumption with the addded wind drag ?? used to have it on all the time when i first had the car never put it on at all anymore

[xychix]

miscalculation

[dooma]

Yeah the hard top threw mine out abit too. Leave it off most of the times these days.

[rds_929]

well went out for a 4wd today and the distance from empty jumped from 280 to 390 ?? wierd maybe something in the fuel tank was playing up and the angles or the movement sorted it out ?? will have to keep an eye on it and see where this tank finishes

[Someguy]

I've been getting around 12.5l per 100 towing an 8x5 trailer with garden waste. I'm a Greens keeper so it's always on

[xychix]

I've been getting around 12.5l per 100 towing an 8x5 trailer with garden waste. I'm a Greens keeper so it's always on

That is more or less wat I did with an empty trailer ~110 kph on long highway drive from France to Holland

[angusjones8]

2014 manual sr dual cab diesel
265/75r16 bfg km2's
steel bar work and winch
steel tray with rooftop tent
speedo and odd are spot on according to gps
been getting 11.3 consistently

Bout to do a 5000km trip loaded up, will update when I get back.

[Sparksy]

2015 dual cab chassis diesel manual. Stock tyres, 225/70r17. No barwork or extra weight aside from steel tray and bushskinz bashplates. Pulling in 11.2 for all town driving, no highway K's recorded during this period.