Outer Limits 4x4 Board

grimbo doesnt have a 4x4 but

i only get about 13-14 l/100km on my wrx turbo ute haha my mq patrol td is better about 10.5l/100km

My gf's terios runs on hopes and dreams

1979 model suzuki lj80, 800cc of pure grunt!
max speed of 75km/h but would run all day on a litre of petrol.... and used to do wheelies cause the back springs were fucked!

changaz wrote:1979 model suzuki lj80, 800cc of pure grunt!
max speed of 75km/h but would run all day on a litre of petrol.... and used to do wheelies cause the back springs were *****!

I had an LJ50 with a 3k (Corolla motor) conversion and 5 speed. Would wind up to 110km/h (no tacho! ) but it was hell scary at that speed.

Towing a 6x4 trailer from Adelaide to Cairns was returning around 10s - but speed was governed by the temperature gauge. Happily pull 80km/h in the morning, down to 60km/h afternoons.

84 hilux 10ltr/100k

3.5L petrol '98 Jackaroo.... 17-21L/100km

ain't petrol a dream? :p

GQ on gas 30l/100km

So I sold the I'm gayer than aids!!

Triton 10l/100k
HJ47 13l/100
MU 9l/100
Rodeo V6 14/100k
Seirra 1.3 10l/100k
Seirra 1.3 efi 9l/100k
Seirra 1.0 9l/100k

Vineboy wrote:Triton 10l/100k
HJ47 13l/100
MU 9l/100
Rodeo V6 14/100k
Seirra 1.3 10l/100k
Seirra 1.3 efi 9l/100k
Seirra 1.0 9l/100k

Sierra's seem to get get woeful economy

Jeeps wrote:

Vineboy wrote:Triton 10l/100k
HJ47 13l/100
MU 9l/100
Rodeo V6 14/100k
Seirra 1.3 10l/100k
Seirra 1.3 efi 9l/100k
Seirra 1.0 9l/100k

Sierra's seem to get get woeful economy

Might be the way I drive To be honest I would expect more from them. we had an Outback that had over 200,00 on the clock and it never went over 9l/100k. Even with all piled up with kids, luggage and air-con on flat out. And it was an auto.

They generally do about 10's until they are offroad where they can be terrible, all depends on the driver.

They also need a fair amount of throttle to hold road speed. I estimate they need about 40hp (maximum is 67hp) to hold road speed at cruise.

40hp, constant = just under 10l/100km

Lots of sierras also have heaps of niggly timing/fueling issues. My 1.0 was doing 14l/100km when it was out of sorts. (This was in a heavy LWB with 34's on it, but I had ignition/fuel problems)

Steve.

I Noticed that zooks seem to be pretty good on fuel around town, But offroad and on the highway the high rev's are a killer

Mock

I used to get 400km out of the 40l tank on the Sierra with the 1.3 and mild mods. Once it went to the 1.5 Toyota engine and 34s and gearing etc etc it dropped to about 325 km out of the 40 l tank.

My GU 4.2 diesel gets about 500 out of 45L, well it did on the weekend.

My GQ on petrol was awful and when on gas wasn't much better just a little cheaper

I got 7 litres per hundred out of my 1L sierra on the highway

Brad

Just got 2012km from one fillup (236L...have put in over 250L before so it wasnt totally empty) in my diesel 80 series cruza....worked out to be 11.75l/100km.

Drove from Warwick to Milbrodale down the Putty Rd then to Eastern Creek then to Overkill Engineering then back to Brisbane then drove around for another week till I got past 2000km.

Checked the odometer against the GPS and its reads about 1% less than its actually travelling.

Sam

my 80 (multivalve turbo, 5" lift, 35's, winch and bars all round) will easily do sub 11l/100km at 90 - 100km/h but it gobbles more the faster you push it. at 120 (which is far more usual than 100 ) it's around 12l/100km. 12's around town and/or in the bush, 14+ on the beach especially if dune hooning.


the point is, the single biggest determining factor in fuel economy is the driver. I know Carts can get down to 14l/100km on the highway in his petrol auto 80 series, on 33's with 4" lift, but in the bush or around town, 20 is more like it.

so the question turns back to you - what sort of economy do you want to get? whislt it's true a diesel will generally return better figures than an equivalent petrol vehicle, the petty is likely to have higher available power, and $ per km it could be a tight race - although Carts might have to fill his more often on the highway, $/km it's a close race with the diesel manual. in the bush, I'd have to town him home if we were going any distance, but he might have the power advantage on a muddy hill climb.

Nobody buys a 4WD for fuel economy. If you want an economical vehicle, buy a small 4 cylinder hatchback - in fact that's what a lot of us do - have a 4WD for the weekends and a little shopping trolley to stop the 4by breaking the bank during the week. Buy the 4WD you need to do the stuff you want to do. start with the number of people you have to cart around, how much stuff, and what kind of trips you want to do. If you want to do weekend wine tours of the hunter valley, get a CRV or RAV4. If you want to tour the simpson desert, get a landcruiser or patrol. If you're going to do a LOT of outback/bush driving, and/or touring, get a diesel. If you aren't going to do really long trips, the money you save on purchase price buying a petrol 4WD will buy a LOT of petrol. Although it comes into the equation at some point, actual fuel economy is not the be all and end all of 4WD ownership. If the difference between 10l/100km and 12l/100km is going to break you, the bottom line is, you really can't afford a 4WD - talk a rich mate into it and get comfy in the shotgun seat!

cheers

DD

I agree Dumbdunce.

diesels and petrols don't run such a different air/fuel at throttle, (so use about as much fuel per kw) but are often making much less power, which is why they are more economical

A hilux making 65kw in a well tuned petrol probably would average not far off the economy of the diesel.

Just out of interest, my STI running 206kw/392nm, 1475kg and city and open road driving is doing 11-12l/100km

My old N/A 2.8 diesel hilux, around town, ran about 1650kg, 60kw, 180nm and 10l/100km

My diesel Gwagen at 2500kg but only 66kw of diesel runs about 15l/100km, and struggles to hold 100 on the highway.

9l/100km is about the best you could hope for, regardless of 4WD.

Steve.

I get about 1100kms from 140lt tank of diesel in my GQ LWB TD42 w/turbo (35's and 4.1's)

I get about 1100kms from 50lts LPG and 110lt tank of unleaded in my 3.2 V6 Rodeo. (31's and 4.555's)

Guess which is cheaper to fill up?

Gwagensteve wrote:I agree Dumbdunce.

diesels and petrols don't run such a different air/fuel at throttle, (so use about as much fuel per kw) but are often making much less power, which is why they are more economical

That's not right.

BSFC (brake specific fuel consumption) is the amount of fuel required to produce a kilowatt hour of power at the crank.
A good diesel uses around 210 g/kwH at best point (which corresponds pretty well to max torque, about 2000rpm in many). VW's 1.9 TDI engine actually gets down under 200 g/kwH.

Your average petrol engine is around 300g/kwH at best point, the best point is a tiny little island which is very easy to miss.

Here's a petrol BSFC map, Mercedes 1.8 I think which used stratified fuel injection and a supercharger, the result is quite good for a petrol, not typical but it's the only petrol map I have:


Here's a diesel map, VW 1.9 TDI


Modern commonrail diesels with variable geometry turbos have a much bigger sweet spot.