3.0 lt di fuel economy

[Nutta]

Im pretty sure when ive done the 5k speedo test on the highway my odo is near spot on also, ill check next time i see one.

Cheers

[cairnsGU]

I filled up again today and returned 13.4 let per 100kays. I'm happy with that. Air on was not used on this tank.

Dan

[gottheshits]

I'm 1/2 way through our trip towing the van. 1000kms at 14.52 ltr average. No flat road so I'm happy with that. Was expecting around 17.

[geeyoutoo]

I'm 1/2 way through our trip towing the van. 1000kms at 14.52 ltr average. No flat road so I'm happy with that. Was expecting around 17.

That is pretty bloody good, do you know how much error you have in the odometer? I have about 1.5% so I don't bother factoring it into my calcs for 1 decimal point.

[gottheshits]

Going of the gps( 2 of) I'm spot on 10% out running the 285s.

I took the rack off for the trip and I've got the tyres at 40psi.

Its been bloody cold ( for a queenslander ) so I'm reckon that would be helping aswell.

Start of the trip Brisbane to Glen Innes was 15.1 ltrs per 100 and its slowly gotten better.

Trying to fill up at regular intervals to keep an eye on it.

[gottheshits]

Last leg of the trip has seen average ltrs at 13.8.

I'm guessing that the hard workout for it has really blown out the cobwebs. It's is actually running nice boost levels compared to the start of the trip.

All in all have saved enough on fuel compared to what I had allowed to go and buy a couple of cartons of Jimmies.

[Nutta]

Well my speedo is near spot on to the gps, the odo was reading around 4850 meters out of 5 k, so not far out.

My best run with the 3" exhaust has been 14.6 ish a 100(no van), about the best ill ever get I suspect, still been to lazy to pump up the tyres but think they're around 37-38.

[Rumcajs]

Mine started using a bit more, averaged up from 11.7 L than 12.5 L now 13.2 L . Not sure what is going on so just think case given the tank a dose of Chemtec for the first time instead of 2 stroke oil.

Cheers

[xfixiate]

Z30 engine, manual, 2006 model

Been travelling around Australia, started in Canberra with a roof top tent and full length roof rack.

Got 850km on 100 litres.

Up in Qld, now getting 500km on 100 litres.

Have changed air cleaner, for a little gain.

Using Flashlube diesel conditioner for a little gain, less rattles.

My guess is that the intercooler or AFM are leaching air.

Air conditioner drains a lot more than it should.

[Rumcajs]

Those figures are scary, that works out roughly 20 L/100 km, the previous figure was about on the ball park for Di around 11.8 L/100. I get average 12.5 mixed urban highway cycle. Worst I ever got was 13.7 with the strong side wind blowing most of the trip.

You either have very heavy foot or there is something wrong for sure.

Do you have NADS modifications? Boost gauge would show you if you are not getting enough boost and EGT gauge would inform you how too much of go pedal you are applying.

With the intercooler leaking so much that it would affect performance and economy you'd hear whistling noise everytime turbocharger spools up. Most if not all OEM intercooler leak as the cheap mass production design is weak and tube crack where they're joining the ends. If you can see black/dark what looks like carbon patches around the ends that where the cracks are.

I'd be changing/checking fuel filter just in case especially when using fuel additives some dislodge all sorts of crap deposited in the fuel tank which than blocks fuel filter. I'm using Chemtec Diesel Power regularly and I noticed fuel consumption going down when using it. You may have had picked up a bad batch of fuel somewhere along your travels, Queensland service stations are famous for that shyte, every truck we get down here (South Oz) with bad fuel problems had fueled up somewhere in Queensland.

Cheers

Edited October 25, 2012 by Rumcajs

[xfixiate]

Mine is a late 2006 which is supposed to be Cmmon Rail (according to dealer I bought it from).

How can I tell the difference (externally)?

No NADS mods, it's stock, only just out of the Nissan 5 year warranty.

History:

- Had the AFM replaced once under warranty. Went into LIMP.

- Dark stains at right rear of intercooler on the fins. Dealer said it was jsut dirt.

- Had oil stain on turbo at the hose leading up from turbo, Dealer said "did the hose up tighter".

Edited October 26, 2012 by xfixiate

[Russ81]

DI will have a silver cover around the intercooler and a spin on fuel filter the CRD has a black cover and an all in one fuel filter.

Sent while temporally motionless

[Rumcajs]

Mine is a late 2006 which is supposed to be Cmmon Rail (according to dealer I bought it from).

How can I tell the difference (externally)?

CrD (Common rail) didn't come out till early 2007, looking at intercooller CrD will have two reinforcing/mount bars running from the front body cross member. Di is mounted directly on the engine with huge silver cover with green letters.

No NADS mods, it's stock, only just out of the Nissan 5 year warranty.

Ouch, consider NADS asap but if it isn't CrD than damage is already done.

- Dark stains at right rear of intercooler on the fins. Dealer said it was jsut dirt.

- Had oil stain on turbo at the hose leading up from turbo, Dealer said "did the hose up tighter".

Lies,lies,lies.... intercooler is leaking exactly where those dark stains are! Those pricks know it and i'd guessed trying to wiggle out of useless Nissan waranty

That oil stain on the turbo is from CCV (closed crankcase ventilation) oil mist no amount of hose clamp doing tighter will fix.

Get "catch can" asap.

I don't wanna be a bearer of bad news but something is very fishy with your d$aler/st$aler.

Cheers

Attached pic shows "non common rail" Nissan Patrol ZD30.

Edited October 26, 2012 by Rumcajs

[Bogan_head]

G'day guys. Got a 2004 guiv zd30 manual. With a provent catch can installed. I get about 1100kms from combined 110ltr tanks. So works out to 10ltrs/100km.

[Rumcajs]

Main tank 95 L subtank 30 L combined = 125.

I'm guessing 125 L to 1100 km = 11.4 L per 100 km which is just about where stock OEM Di are(no bullbar, roof rack etc.).

Unless of course you are saying that after you fill up with 110 L you can travel 1100 km.

That makes me jealous. I'd love the 10l/100 km fuel consumption. I'm averaging between 11.3 (best) to 13.2 (worst)

Cheers

Edited October 31, 2012 by Rumcajs

[xfixiate]

OK Mine is CRD

Cleaned the MAF, seemed clean.

Seems to be running better.

Odd sound could be turbo squeak, need to get it serviced.

Any suggestions in Canberra?

[Rumcajs]

I'm sorry I can't help you with suggestions in regards to specialist in Canberra.

It appears you are having the dreaded CrD fuel guzzler. Causes are not definite as only a few were willing to spend the serious coins the injectors and the pump command. One bloke in WA had similar high fuel usage but after he filled up with bad fuel and ruined the whole fuel system, he had the high pressure pump, injectors and whatnot replaced under insurance claim (about $7 grand total if I can remember) and the fuel economy returned back to 10-11 L. Thats a lot of fuel to go through about 4,375 Litres at $1.60 per Liter of Diesel which would make for up 39,772 km travelled if fuel consumption was 11.0 L.

I tend to think that it is probably injectors as their pilot phase(they're multi stage injection) can leak/drips fuel which contributes to significant fuel consumption.

Number of CrD Patrols also didn't have the injector trim codes recorded in the ECU from factory as well which could be another source of high fuel consumption. Nissan is turning blind eye claiming its probably all the accesories people hang onto Patrol but I'm sure they're just dodging waranty claims as usual.

Cheers

Edited November 2, 2012 by Rumcajs

[Kingy]

OK I ran mine to nearly empty

Returned 12/100 I have a roof rack, steel bullbar and Kaymar dual wheel carrier and 285/75/16 muddies and that was all town driving. My economy actually gets worse with country driving as I am loaded to the hilt with gear and peeps.

[Waza]

I have a 3.0 Di manual troll.

Had a 3" exhaust fitted two days before a hunting trip to Wannarring NSW . I fueled up in Dural Sydney & went to within 50km from Bourke before dumping the reserve tank. That's about 720 km's with roof rack , awning , arb bullbar , safari snorkel & 265 70 16 bfg ATs with 40psi. That's about 12lt per 100km. I just put nads in & will check the consumption & post the results when the Handbrake gets back from a horse event with our daughter next week.