how can i make a 3lt d. hilux more fuel efficient

block of wood under the accelerator pedal......................:-)

Larger Free flowing exhaust say 2.5 may help at highway speeds plus a uni filter. Top motor but not the most fuel efficent, it would still be my pick of all the 4 cyclinder diesel motors Less agressive Tyres can make up to 50ks per tank diff.
Cheers Pete

Hi Troyza

The first step is to know what it should do.

If its relativily recent model it should have a fuel consumption label, and extra info you need is its weight now as per public weighbridge.

These 2 figures are starting point.

Cars about standard will do close to this figure, and can be driven around 1lt/100km lower than this figure if driving conservative, and around this figure if only 10-15% has been added to this weight.

This rule holds pretty well for most cars in good condition and not modified much using close to standard tyres.

Robin Miller

I would have thought getting that kind of economy (10 Lts/100k's) was quite good especially with it all loaded with extras. I currently get at best around 11 - 11.5 Lts/100k's (480 - 500 k's per 55 Lts) in my 04 TD with no extras apart from tray liner and sports bars. If you start to compare to petrol powered duel cabs like the Rodeo then you should be happy I reckon.

Plantman

Family recently towed a 16ft Jayco expander outback model up through the Victorian Alpine highway - lucky to get 200-250Km per tank with their 3.0 L td Hilux

don't feel so bad bud just sold an 06 dual cab hilux 3.0td coz we could only get 330km to 68 litres of diesel and toyota wer'nt interested,only advice buy a PRADO.

Troyza,
. Good to see Toyota have finally caught up with Isuzu, (at least in one aspect). We averaged 8.7 L/ 100 in the old '94 Rodeo, but have dropped to 10/100 in the 2002, 3L version. Similar setup as you describe. Also is less tolerant to higher speeds than the good old 2.8L engine.
. On a trip, we now work on 11L/100. A bit sad, really. Jeff H.

not a block of wood, an egg under the pedal is better.

seriously, you would be insane to sell an expensive car and buy another expensive car to save a few bucks on fuel. Do some calculations, if you use a full tank a week, to change from a car that does 10litres/100km to one that does 8l/100km you will save 9 litres a week you will save $12.60 a week in fuel. and to save that money you will be spending thousands in GST and stamp duty etc. dont know which state you live in but stamp duty and GST could be up to several grand. by my calculater that could take 158 weeks to break even.
Alternatively you could give up 1 packet of gaspers a week, or a six pack of beer, or do 1 hour of overtime a week, or wash the neighbours car once a fortnight, make sandwiches for lunch once a week, skip 2 cappucinos, or possibly just live with it, like country people do who dont have an alternative with public transport.

I guess it is a bit like when interest rates were at historic lows, then went up quarter percent and people were saying "we're gonna lose our house"
pretty well anybody could find an extra $10 a week somewhere, and if they lost there house cos they didnt try, well they almost certainly borrowed far too much when rates were low, or they couldnt be bothered

Dont think I am having a personal dig though please, I am only trying to put it in perspective

My 05 hilux D4D gets currently around 10lt per 100klm

The best I recorded was 9.5, Toyota state 8.5

I find that with the new engine it has that much grunt I like to use it, hence I seem to run a little quicker than I did in the older Hilux even when towing. It does it so easy. (but at a cost)

I have bull bar snorkel and all, I think these item not only weigh a little but stuff up the airflow as well :-(

Hi All

I have a 2500cc DCi Nissan Pathfinder and I live in Greece

I was doing something line 11.5 - 12 lts / 100 Km and my Bhp was 174. Then I bought this tuning chip thingy. From Germany. Easy to install, no hustle.

The claim was increase in Hp, Torque, and Better fuel efficiency.

I cant say about BHp and Torque (I cant measure them), although I have the feeling that my car has lost something like 300 Kgrs from its 2.300 Kgrs.

But the consumption has been decreased to 8.5 - 9 lts / 100 Kgrs (on board computer). I did a search with the keywords "diesel tuning site:au" and got a lot of hits.

I think this is your answer

Regards

Fill the fuel tank up with water. It won't use ANY fuel after that! LMAO.

** Note, do NOT fill your tank up with water! ***

Try putting 1.7% Acetone in the fuel tank, I am currently testing this theory and preliminary fuel results are looking positive. Car is MUCH quieter too, truley suprising.

G'day Troyza,
I have an '02 DualCab 3.0TD Hilux and am getting similar economy. It was worse than this however. I made a very unpleasant discovery whilst checking out my intake manifold internals one day. Inside of the intake was caked up with a half inch thick coating of an oily carbon residue that had made its way to the cylinder head ports and was resticting airflow.

Problem turns out to be the crankcase breather on the rocker cover is very low and feeds straight back into the fresh air side of the turbo which in turn feeds through the charge pipe back into the intake to be burned off with combustion. This oily residue was mixing with the carbon from the EGR inside the intake and instead of burning off in the cylinder it created a sticky paste and sits on the wall of the intake and cylinder head. As we all know if the donk's not getting enough air, it's not going to make enough power giving you bad economy.

Simple solution was to fit a catch tank to collect oil vapour from the crankcase breather and block off the existing hose to the turbo, give the intake and head a thorough clean and monitor. In doing this the engine became more responsive, had more power and I got better economy.

Might be worth checking out as I don't think that this is an isolated problem.

Cheers,
Heefers