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Thread: premium diesel fuel? is it worth buying?

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    Cool premium diesel fuel? is it worth buying?

    BP ultimate diesel etc, is it worth paying the extra and what is the difference technically? I know its probably been discussed before but search didn't turn up anything so forgive me if its a repeat thread.

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    Regular Member m8internet's Avatar
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    Search "ultimate"
    The main difference is the higher cetane rating
    With long term use it can increase your MPG by about 5%
    However weigh that against the extra cost and there is little or no benefit

    I only tend to purchase BP Ultimate diesel when it is within 4p a litre of standard diesel
    That works out an additional £2.40 per tank
    Compare that to one tank of standard diesel plus one bottle of diesel treatment

    Personally I have not noticed any difference
    My car was doing 32.8mpg for 10 tanks of Shell Diesel
    My was still doing 32.8mpg for 10 tanks of BP Ultimate Diesel

    I have not yet compared Shell V-Power Diesel, as that is currently an extra 8p per litre

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    .
    That works out an additional £2.40 per tank
    Compare that to one tank of standard diesel plus one bottle of diesel treatment

    thanks, is it supposed to be a "cleaner" fuel and can you or anyone recommend additives? have just cleaned out a very very sooty egr valve so would prefer something to put off having to do it again

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    just looked on www.petrolprices.com which sends you updates of prices in your selected area and texaco seem to be the cheapest for premium diesel

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    Regular Member m8internet's Avatar
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    Quote Originally Posted by veralum View Post
    just looked on www.petrolprices.com which sends you updates of prices in your selected area and texaco seem to be the cheapest for premium diesel
    These use the ARVAL database, so the price can be up to three days old
    Due to the regional carve up in the early 00s there aren't many Texaco left in Scotland!

    The diesel fuels are all as equally clean or dirty!
    I would just get used to cleaning the EGR at regular intervals, however this does suggest a more basic fuel burning issue as I have never had any issues with a EGR

    Equally, it makes little difference where you go for fuel, as regionally all the fuel comes from the same refinery, the retailer only add their specific key (additive)
    Here in Scotland that is nice and easy, it is all from BP

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    Higher cetane rating DOESN'T have the same effect in diesels as higher octane rating in petrol engines.

    The difference is just the additives - which is why mpg doesn't normally improve but the engine will probably feel smoother.

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    Regular Member Ollie's Avatar
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    Vehicle : Vectra C Estate (150) Nav

    Trim : SRi

    Engine : 1.9 CDTi (150)

    Year : 2006

    Mileage : 126000

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    I filled up with BP Ultimate because it wasn't that much more at the petrol station in N'pton. Not really driven far enough yet to see any difference in mpg/performance. Another thing I've noticed - on my Volvo, when the nozzle first 'clicked' to indicate 'full' tank, I could squeeze in another 3-5 litres by going slowly. Trying the same thing with the Veccie I got just over 1 litre in before I got wet feet! I guess after the first 'click' I should just round up to the nearest full litre and call it a day...

    So, are peeps with diesel engines using a particular/preferred additive as a matter of course? How much and where from? A friend at work said I should only need to put additive in every 3 or 4 tanks of normal fuel. What do you guys reckon and how often would you recommend cleaning the EGR if additive has been used? Ta!

    Sorry, just found this thread: which diesel additive , which pretty much answers the first part of my question: "Millers Power Ecomax" (previously "Millers Diesel Sport 4"). The second part still holds though.
    Last edited by Ollie; 21st January 2010 at 16:23. Reason: Found other thread answering part of question\

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    Vehicle : Jaguar XF 3.0D V6

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    In reality you shouldn't need to use additive habitually at all. I never did on my old car which went to 95K miles before trade in, or on the wifes diesel car. I see no point, as IMO they really don't do that much anyway.

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    Vehicle : Signum

    Trim : Elegance

    Engine : 2.2 Direct

    Year : 2003

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    I never noticed anydiffernce when i put ultimate in my old 02 plate Hyundai Accent diesel, but by god it made a difference in a 51 plate transit i used at work.

    It was alot smoother and seemed to boost better

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    Vehicle : Vauxhall Insignia

    Trim : SRI NAV

    Engine : 2.0 CDTI 140

    Year : 2013

    Mileage : 20000

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    The only diesel premium I would say is worth while is the Shell V-Power one. Its a GTL fuel, dont think BP's or Total use GTL diesel they've just got extra bits added to standard?? I could be wrong??

    GTL fuel is synthetic fuel, has no sulphur or nitrogen so I'd think it woundn't clog the EGR/DPF as much, but again I could be wrong. Either way GTL diesel is suppose to be the future for the fuel, and can be drunk neat its so clean, wouldn't fancy it though!

    I tried the new millers ecoMax and didn't really notice anything.

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