fuel consumption

[nallington]

Hi guys
I have a GU 4.2td that we use for pulling a Caravan which is 2 ton plus, the best i can get from the fuel consumption at the moment is 17.5 ltrs to 100kms, i need to improve this as we intend to travel round Oz next year i intend to fit a 3inch exhaust and turbo booster but will this help the fuel consuption the engine is in good condition burns no oil between services and does not blow out any smoke, i have looked into gas injecttion but was told it would not nececcarily improve fuel consumption would appreciate any help

Neil

[patch697]

A reputable diesel turning mob who know there stuff is a great place to start.... Do your exhaust & other mods first, then get it tuned properly by a pro.

[altech]

LPG is a good option for more pulling power and a cleaner burn in the pistons , 60 cents a litre and turn it on when you need it cheers Alex

[MQ MAD]

So your dragging a van that probably has a higher roof line that the patrol, causing excess wind resistance, then pulling the 2 tonne, usually up and down hills,inclines and your complaining about 17L/100Ks
Yes its a diesel and yes they are known for the economy, but you are towing a van non the less
My petrol GQ gets worse economy empty , no trailer and rolling down hills


Bigger exhaust and more boost should help , but i wouldnt expect a massive improvement

[Wizard52]

Hi Neil
I have 06 ute with canopy which is a bit higher than the cab (200mm) and have 3" exhaust with 15psi boost and dyno tuned. Power increased considerably and a lot better to drive usually in 1 gear higher than before tune up but no noticeable improvement in fuel economy. Presently 13.2 to 13.7 lt per 100klm with load on highway so I would guess 17.5 lt per 100klm is the best you will get with 2 tons behind you. I was getting high 11's to 12's before canopy and tune up but with the extra power available, you tend to use it.

cheers

[nallington]

Me too cant beat it

[nallington]

i have looked into LPG and once spoke to a guy who fitted expensive conversions he told me improved fuel consumption would be negligible

[nallington]

thanks for that i would be happy with more power but like you say you tend to use it

[bundy4127]

Sounds like pretty reasonable fuel consumption to me.

If you spend a lot in mods to get slight gains in economy, you'll have to drive round Australia more than once to recoop your costs.

Hope you have a great trip.

[rusty_nail]

my car uses 30 litres of gas to the 100k's lol, 300km range oh yeah!

[Sir Roofy]

my car uses 30 litres of gas to the 100k's lol, 300km range oh yeah!

that seems alot my gu used 18lper 100ks and got 426ks

[rusty_nail]

that seems alot my gu used 18lper 100ks and got 426ks

i think this gq is tuned a bit rich, it does idle high, and my old gq with elec ignition used to get about 400 to the tank, im waiting for a auto elec kit to arrive and hopeully that will increase my fuel economy, otherwise might have to go to a gas specialist and get them to tune it

[Sir Roofy]

i think this gq is tuned a bit rich, it does idle high, and my old gq with elec ignition used to get about 400 to the tank, im waiting for a auto elec kit to arrive and hopeully that will increase my fuel economy, otherwise might have to go to a gas specialist and get them to tune it

with the way gas is creeping up in price could be a good idea to have it looked at
and i thought at times the quality of the gas at some sevos wasnt up to scratch
seemed to burn quicker

[rusty_nail]

with the way gas is creeping up in price could be a good idea to have it looked at
and i thought at times the quality of the gas at some sevos wasnt up to scratch
seemed to burn quicker

even though i have only owned this gq for a month or so, i bought it off a mate and i know for the whole time hes had it its always got 300ks per tank. i dont think its the quality of the gas, rather it just needs a good tune. the fuel economy is a bit killer though lol

[bazz61]

gidday mate ,i'm towing a 2 ton plus van with a non turbo 4.2 d dx ute ,stock standard,sit on 80/90 kph, average about 400 ks per main tank , head wind is worse, comparing notes with other caravan owners , this seems normal, only the newest v6 diesels seem to get around 13 l per 100 & some v8 td cruisers, you just have to face the facts , towing a van is expensive