Common rail fuel consumption

My new 4800 GU petrol delivered 16.5lt/100km recently (13.8 no load) so something is quite wrong.

Can you be sure your figures are correct including odometer ?

The only real way is to always fill your tank , and record over several fill ups after GPS checking your odometer, noting conditions e.g. 4wd/tow trailer/noload etc.

Charlie
All new diesel's require a "bedding in process", and they will need some time to settle in.
Here are a few little hints, that may help.
Try 4th gear towing, more revs, means the motor spins easily, and is not pumping in fuel to make horsepower.
Also Run no more than 95km/h, and do not pump accelerator, rather let the turbo whistle upand do the work for you.
Do not be afraid to use the gears.
Run tyre pressures up to 40 cold, on the black stuff

If she still does bad economy, like your figures indicate, then take it back to Nissan and jump up and down. If you are still not satisfied then go to a Diesal specialist, but remember your warranty, do not want to upset Mr Nissan too much, this early in the piece.
Cheers
Bucky

The brother in law has one and tows a 2.5 tonne full height van with a tinny on top of the car, he gets about 18 l/100ks. Lots worse if he tows over 90-95 kph

How does it go without the trailer on etc?

My 07 auto 3 litre only achieves 6klm/litre on highway approx 4klm/litre towing 4,3m tinny, Have been discussing this with Nissan Australia for approx 3months no help so far.
Had mine dyno tested twice,boost is 15lbs and air/fuel ratio is 17:1 which i am told is correct.
However black smoke is emitted virtually constantly,it seems the fuel is not being burnt efficiently,Nissan have refused to put in writing what the correct power output should be,if you have yours tested you might be surprised how little power it actually produces,will post my figures for you tomorrow.
Does yours blow smoke ?? ITS not the roof rack.

Hi Charlie,

my 08 CRD Patrol was thirstier when new. It has improved noticeably and is now at 55,000 km's.

Mine used 19l/100km when towing my camper at 105kph in 5th. Backing off to 90 to 95kph in 4th changes it down to 16.5l/100km.

For the first 20,000 k's I got around 15 to 16 l/110km. Now I am down to an average over the past 5,000 k's of 14.3 l/100km. Late last year I purchased a Scangauge 11 which is a very useful tool if you want to drive for better economy. I have gained 1.4 l/100km by driving no faster than 100 and keeping a light foot around town since I got the scangauge. It has helped me significantly.

What have you added to your rig? ie: Roofrack, additional weight in the form of bar work, dual batteries, drawers, fridge etc. I have noticed that additional weight has a big impact with the CRD.

You have given a figure for towing but what economy do you get without?

All the best,

TJ...





It would be worth your while reading up on the Nissan Patrol Forum as there are some fuel guzzling CRD's out there.

Roof racks are killers for economy even unloaded. If your not using it take it off and see if that makes any difference. My petrol pathy goes up about 5 lt per 100 with rack on. Cheers marn

I am pulling a three tonne van around at the moment with the same vehicle as you. The Patrol is well loaded with extra fuel and H2O. My speed is usually between 90-100km/hr. I am getting around 20-21l/100km. Is better on days with tail wind. Air con is always on, cruise is usually set. Compared to owners of other vehicles pulling similar weights, I am told this is pretty good. Have not done 20000km yet. I have a 3" exhaust and Steinbauer and rarely need to get out of 4th gear. I have an uncle in law who has complained since day one about his Patrol's consumption - their offer to him is the new model at cost price - not really an offer in my opinion.

Ant

Figures sound about right. They are getting through about 17 per hundred empty. Thirsty buggers eh.

Our is thirsty at the moment, we are currently at Longreach and I haven't done any fuel calculations.

The vehicle is still under warranty and will have it checked in Darwin when it gets a service.

Cheers

I've got a 2010 3lt auto Patrol which has now travelled 20,000km. Normal running averages 13l per 100km. Towing a 1.4 tonne camper is between 13.8 and 14.5l per 100km. I have a Scan Gauge which is great to monitor fuel usage. Interestingly mine uses less fuel towing the camper at 100kph than what is does at 90kph. Fuel economy has improved a little since new. I run increased tyre pressures when towing the camper on sealed roads. This makes a noticeable improvement to fuel economy.

Regards nrb1748

hey Charlie,

just to add my 2 cents worth, i get about a calculated 16-17 lt/100 klms in a 6.5 chev Diesel. that is around town figures, with one 200 klm straight run up and down the Kuranda range.
basically i filled both tanks and ran them till the red light came on and got about 760 klms out of both tanks. one 95, and the sub 32 lt.
John

You won't achieve the best economy until you have done 20000km but 20L/100km is terrible. Mine is auto and pulling a camper trailer I use about 11L/100km. Don't pump your tyres up to 40PSI either or you wear the rear ones out in the centre of the tread first. Also you will shake the crap out of you and the vehicle and in an emergency braking situation you will not get maximum grip on the road surface, especially if it is wet. Before anyone jumps down my throat about the ABS preventing wheel lock up tyre to road surface C of F is still less and you have a smaller tyre footprint and it will take longer to stop. Get the fuel consumption checked at the dealer ASAP (depending how you drive it of course) If you haven't had one before you need patience and drive it like a truck and not like a car.

Ok my dyno figures are.....max torque=489nm@45kph
max power is 68.4kw@63kph
motive force = 1017.2lb@45kph

I am interested in anyones comments.