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DogTrail Profile
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X-TRAIL FANATIC
 


Date Registered: 05-2012
Location: Sunshine Coast
TOTAL POSTS: 481
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Re: t-30 poor fuel economy


The fuel economy is directly related to the quality of the fuel input (among other things).

Nissan say that there will be loss of performance and increased fuel usage when using 91 octane fuel in the motor designed for 95 octane.

Yes, I know the engine is designed to re-map to make the best of what it is given and Researched Octane Number is not an absolute octane rating but I'm generalising.

Personally, I get better performance and best economy with the 2.5 L petrol Version 4, using 98 rated Caltex or BP which are alleged to run cleaner.

Allegedly, those fuels already contain the cleaners (not included with 91 and 95 rated fuels) which I would otherwise have to buy as additives at 10 bucks per treatment to keep my injectors and sensors happy..

The cost/litre difference between 95 octane and 98 octane is a few cents, but the difference in cost between 91 and 95 is significant.

To me, the economics are clear, 98 ron has the edge if continuous cleanliness of the fuel system is a factor.

To allow a build-up of crud in the fuel system (using 91), then periodically clean it (with a 10-15 dollar a bottle additive which may or may not work), does not seem to be as efficient as running with a 100% clean system all of the time.

Edit: Spritmonitor shows this engine as the most economical 2.5L CVT 4WD compared to all of the others on the site.

Perhaps that indicates something.

I must say that I don't have daily bumper to bumper traffic, nor do I live on a mountain so that is also advantageous for my particular fuel consumption - although it seems to be below 8L/100 Km over the last few tanks of general driving using Caltex 98. emoticon.


Last edited by DogTrail, 22/Aug/2013, 9:41 pm


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2011/12 Australia:- 2.5 litre petrol 4WD, Series IV ST, CVT : + some gadgets and cosmetic add-on's. Dirt, (it protects the paintwork) X-2429(c).
22/Aug/2013, 9:11 pm Link to this post Send Email PM   Send Private Message
 
maxgmoore Profile
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X-TRAIL LEGEND
 


Date Registered: 11-2012
Location: Broome
TOTAL POSTS: 547
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Re: t-30 poor fuel economy


on my just finished my second tank post o2 sensor replacement and MAF sensor clean. 10.8L per 100. so happy. fuel light didnt come on until 511kms. So much better than comming on at 380km. emoticon

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Cheers
maxgmoore X-2776 (c)
My Ride
2003 Series 1 T30 Ti

1/Sep/2013, 1:48 pm Link to this post Send Email PM   Send Private Message Blog
 
Ian Ewin Profile
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X-TRAIL FANATIC
 


Date Registered: 03-2012
Location: Newcastle, NSW
TOTAL POSTS: 471
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Re:


Good news, mate. It's always a good feeling when you get to the bottom of an annoying problem!

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Ian X-2305(c)
New: 2010 NT Pajero
Old: 2008 T31 Xtrail "The Monster"
The only one of her kind.. may she rest in peace :(
1/Sep/2013, 2:46 pm Link to this post Send Email PM   Send Private Message Blog
 
maxgmoore Profile
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X-TRAIL LEGEND
 


Date Registered: 11-2012
Location: Broome
TOTAL POSTS: 547
Reply | QUOTE
Re: t-30 poor fuel economy


tell me about it not to mention the money saved on fuel emoticon

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Cheers
maxgmoore X-2776 (c)
My Ride
2003 Series 1 T30 Ti

1/Sep/2013, 9:31 pm Link to this post Send Email PM   Send Private Message Blog
 
Newt82 Profile
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X-TRAIL NEWBIE
 


Date Registered: 03-2014
TOTAL POSTS: 2
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Re: t-30 poor fuel economy


Hi i have been reading the write ups about the fuel on the T30, as I'm new to a forum I hoping for some useful tips, I have a 2004 t30 ti auto xtrail only had it for 3 weeks. Has 125,000 on the clock, I have now done two full tank trips and both times I get around the 400km mark when the gauge gets below the last quarter and light comes on, so I fill up with premium and it gets about 42.20 litres into the tank, which it works out to be around 10.5l per 100kms city driving,do you think there is something wrong with the fuel gauge/sender or should I be getting better range,Please advise on what I should do or is this normal..??
20/Mar/2014, 5:24 pm Link to this post Send Email PM   Send Private Message Blog
 
jalalski Profile
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Date Registered: 02-2004
Location: SUTHERLAND, SYDNEY
TOTAL POSTS: 29094
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Re:


10.5LT/100kms city driving with air-con on in this weather is pretty normal fuel consumption.

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20/Mar/2014, 6:21 pm Link to this post Send Private Message MSN Blog
 


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