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Thread: CDTI 150 + Bp Ultimate Diesel

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    Regular Member barkzz's Avatar
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    Question CDTI 150 + Bp Ultimate Diesel

    Hi All,

    For an experiment, I've decided to put a tank full of BP Ultimate Diesel in.
    It cost £67 which I wasnt expecting!

    Any way, since putting this in, my range trip thinks it will only do 560 miles to a tank, as opposed to a full tank at sainsburys which usually reads 650miles.

    Any reason for this? Also Mpg doesnt seem very good so far in the low 40's as opposed to high 40's.

    I've reset the trip on this, so will see how it is tomorrow.

    Anyone had any experience of this, and also what do you think of the BD Ultimate Diesel? Worthwhile or not?

    Thanks!

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    Regular Member ghostrider's Avatar
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    Vehicle : 2.0l CDTi Bi-Turbo Insginia Sports Tourer

    Trim : Vx Line Nav Sri

    Engine : 2.0

    Year : 2014

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    You'll need a few full tanks through it to allow the ecu to adjust to the different fuel type.

    Give it 2 more tanks, then check the range etc (from the actual driven range, not the computer)

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    Regular Member hairy31's Avatar
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    Hi , did exactly the same as you after reading the hype, utter rubbish imo,
    usually do around 450 on tescos......only do short journeys and on the bp 0nly got 410 and cost more.....just hype me thinks.
    Andy

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    Regular Member barkzz's Avatar
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    I honestly don't know whether I can justify the use of the stuff that's the problem.

    My fuel bill is normally £210 a month. Using that It would cost me £268!

    Ah didn't reliase the ECU had to adjust. Thought the Sensors etc. would do that, due to the higher octane/cetrine rating

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    Regular Member Penfold101's Avatar
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    Plus, the range computer only works on the previous 30 miles of driving, and uses that to calculate the range of what's left in the tank. It's no really very reliable, as this picture from my old CDTi shows...



    It was just after I'd achieved this:



    Needless to say it starting dropping fairly quickly...

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    Regular Member Flaninacupboard's Avatar
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    That fuel station must have been at the bottom of a -big- hill!

    I don't think the super fuels help. i'm 6,042 miles into my super test, and seeing a 3% economy increase, but ~4% more expensive fuel. as for the other "runs smoother, more power" stuff? utter rubbish.

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    Regular Member barkzz's Avatar
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    Quote Originally Posted by Flaninacupboard View Post
    That fuel station must have been at the bottom of a -big- hill!

    I don't think the super fuels help. i'm 6,042 miles into my super test, and seeing a 3% economy increase, but ~4% more expensive fuel. as for the other "runs smoother, more power" stuff? utter rubbish.
    Quick update, car seems to have got use to it.

    I managed to do 58.8mpg average on my 24 mile mway journey to work!

    Impressive, i even hit 60.1mpg at one point!

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    Regular Member Ste's Avatar
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    I did a test in my car (1.8 Petrol) where I drove with fuel economy in mind, and increased my MPG by up to 11% using the same fuel and commuting route. What I am saying is that style and duty cycle are HUGE levers in determining overall fuel economy numbers, probably much bigger than 'extra' fuels.
    BTW there is NO adjustment for different fuels in the fuelling software. So 'waiting for the ECU to adjust' is fantasy, it CAN'T and WON'T.


    I wonder if the '3 tank fulls' is just to get you to buy 3 tank fulls before you discover you are wasting your money???

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    Regular Member barkzz's Avatar
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    I agree driving style has a much bigger impact without a doubt.

    I think there is some benefit to be had, but it doesnt compensate for the additional price

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