Cheers, will look that up

I've read in a couple of places - think one was What Car that they say the later facelift from I think late 2010 had minor gearbox changes and some engine mods to make them more fuel efficient. My dealers also said the later ones were better on fuel and quieter engines. I often see websites saying pre 2010 cars being 170 hp and post 2010 cars as 173....................

Anyway my driving is 90% dual carriageway and motorway with a small amount of local roads - I am 2 miles off the A11 so engine is just starting to warm up. I tend to change gear up just after the reminder on bottom of dash suggests it and once on top gear at around 73mph I switch cruise on and use it most of the time using the steering control to slow or speed up/resume. My car averages between mid to high 40's. Only time I saw it just into high 30's was driving to Bristol with a head on gale in the recent high winds. My figures are from pump fill ups (I never trust readings from computer) and 90% using Shell diesel - often V Power but I must admit the trip computer is pretty accurate to within 1 to 2 mpg. I don't drive like Miss Daisy either and waste no time getting up to speed. I would be appalled if i was getting your figures and would have got rid of it pretty soon - assuming your is manual?? My VW T5 California Camper gets those figures and that's 3200kg with 180hp engine!

2 days to go and great to hear someone having had an EXy done. The chap where I am going say's he had done about 5 of my engine and all were a dream to do - takes about 45 mins max. While they are doing my son's BMW E60 530D they are changing my gearbox, diff and transfer box oils first - then the remap. Following this early next week I am having 4 wheel alignment carried out by a specialist 4 x 4 centre. Normally the Hunter gear most places use gets it within spec (in the green) and that's it. Mine has had that done but in 4WD if I do hit it hard you feel a very very slight tendency to pull left (most people wouldn't notice it but I am penickity) and this 4 x 4 centre gets it bang on original spec.

Will let you know how I get on

That's quite poor. I have the same engine and even just knocking about local I get around 36/37 mpg. On a run I get around 48 but managed once to get over 50 mpg.Mines done 58k miles , serviced annually and only has Shell diesel. Occasionally I treat it to the expensive Shell diesel and I put a shot of STP diesel treatment in every 2 or 3 fill-ups. I never hard on the acceleration and more often than not I change gear when the arrow appears....you soon get used to it but it's generally around the 2500 revs area . I've always drove like this and I'm getting 45/50 mpg out of my 17 year old ford focus with 125k on it. Hope this helps.

Sent from my XT1032 using Tapatalk

You sound like you get the same MPG as me - I thought that was very poor fuel economy. I used to get 41 out of a tuned Saab 9-5 petrol Aero Est with 300 horses!

Might try changing fuel to see if it makes any difference. Alway use Asda fuel and add a shot of Millers Ecomax at each fill up.
Never, ever had a problem with fuel economy using Asda fuel on any of our vehicles. Last car I had before the Xtrail was a Peugeot 407 HDi which used to average 45 mpg around the doors and on a run was well into the high 50 mpg.
Maybe this engine doesn't like Asda fuel.
Time for a bit of experimenting me thinks.
Malcolm.

My wife used to use Asda fuel in her 2010 Golf 1.6tdi and then we moved house and she started using Shell as closest garage and not too bad cost. The car went from average 48 to ave 56 in a short amount of time. My Saab 9-3 TTiD Aero (which this X Trail replaced) sounded like a bag of nails on any supermarket fuel if I couldn't find a Shell or BP garage when I was out - a tank full didn't last long and I was lucky to get high 40's poss 50 but with shell it was constant high 50's and engine ran smooth as can be; use Shell V Power diesel and it would do 60 on run. Lowest Saab averaged on local drives was 52 with Shell and that was a very powerful engine.

I think you need to ditch your Asda cr4p and your additive and give it at least 2 full tanks of Shell V Power to clean it out then use normal Shell or BP. Esso seems ok as well. Think your engine will love you for it and feel smoother

Lol..my wife had similar problems NJ. I asked where she was filling up , yes it was a supermarket. Fuel economy was c**P and pinking like hell. One tank of BP sorted it out . I was a Shell tanker driver back then so I knew that market fuel was nowhere near as good , the additives in the fuel were virtually non existent, not sure if it's any different now but I still wouldn't touch it. Women eh !

Sent from my XT1032 using Tapatalk

Agreed.

Where are you n Suffolk? I'm near Wymondham.

Celtic dealers are in Suffolk - Sax Vehicle Services in Worlingworth.

I'm there tomorrow. Will let you know how I get on.

Re-map done so now 221 hp and what a difference already noticed especially in 3rd gear . The power curve is so much smoother than before and engine feels like it now wants to get going.

The chaps were superb and incredibly knowledgeable and the fact they are busy as a garage is a good sign.

My sons BWM took ages as it wouldn't play ball through the CANBUS - it took 45 mins to upload to Celtic but within 5 minutes the map arrived back but it took another 35 mins to install but he now has 300hp diesel!!!

As my X Trail could communicate and upload through CANBUS that took less than 10 mins to upload to Celtic and the remap arrived back within 10 mins and installed within 15 mins - very quick with no hitches at all on either car.

Also had gearbox, diff and transfer box oil changed. Nice to see plugs had magnets on them and literally 3 or 4 tiny iron fillings attached. Both oils weren't too bad for 161k but now has Redline in all boxes and feels much smoother.

Will report what sort of mpg I get after the honeymoon period of probably 3 tank fulls !!!! You can now feel the car hunker down when accelerating out of a sharp corner - great