Carrefour selling 'superior' diesel

Discussion in 'Motorhome Chat' started by Robert Clark, Apr 6, 2016.

  1. Robert Clark

    Robert Clark Funster Life Member

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    I noticed recently that Carrefour has started selling 'superior' diesel as well as the standard stuff
    I'd normally avoid filling with supermarket fuel having had a bad experience once, but I've used the 'superior' stuff a couple of times now without issue.
    Can't remember what they're calling it - anyone know?
     
  2. Clarky

    Clarky Funster

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    I'll let you know tomorrow after we've stopped at Carrefour in Narbonne for a fill up.
    I use supermarket fuel almost all the time and not had any problems yet.

    Richard.
     
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  3. Robert Clark

    Robert Clark Funster Life Member

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    Hi Richard
    Don't think they're selling it in all stores - maybe only the bigger ones
    We noticed also that Carrefour have just opened a brand new petrol station opposite on the ring road near Citie Europe - bought some 'superior' diesel there the other week
     
  4. Middy42

    Middy42 Funster

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    I use it where it is available it makes sense
     
  5. Tea Bag

    Tea Bag Funster

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    Hi.
    Cannot do any harm,a tank full of Superior every now and again,give the engine a treat,after all,it is the heart of the beast.
    Tea Bag
     
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  6. Clarky

    Clarky Funster

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    Sorry @Robert Clark.
    Can't answer you question as Carrefour Narbonne only sold diesel ordinaire not the super duper stuff.

    Richard.
     
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  7. Robert Clark

    Robert Clark Funster Life Member

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    I guess I'll have to come back to France and check again for myself
     
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  8. Clarky

    Clarky Funster

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    I like your thinking Sir. :)
    We are only part way home and are already talking about the next trip.
    It might be sooner than we originally intended.

    Richard.
     
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  9. Autowbars

    Autowbars Funster

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    Don't know about French diesel but last 2/3 tanks have used UK supermarket juice, my impression is that I am getting less MPG.
    Just a thing of mine, always keep track of it.
    Emissions must be OK as I had MH MOTD Monday,
    But less mpg.
     
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  10. Clarky

    Clarky Funster

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    Filled up at Carrefour again today, just north of Clermont-Ferrand.
    Still only had 'van ordinaire' on sale.

    Richard.
     
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  11. Jaws

    Jaws Funster Life Member

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    Our bus gets run on what ever is to hand.. from old chip oil to ... well you get the idea !
     
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  12. Citysafe

    Citysafe Funster

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    Diesel is made to a standard. If you pay more you might feel good but what is the real difference. In Germany yesterday I saw normal 1.13e super 1.26e and something called Race diesel 1.54e.

    I don't think a delivery van engine need premium fuel.
     
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  13. DuxDeluxe

    DuxDeluxe Funster Life Member

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    Exactly. It all has to meet EN590 standard. Supermarket or branded. It frequently comes out of the same storage tankage as well. The branded stuff may have a few parts per million of an additive or two whereas the supermarket fuel has a few ppm of slightly different additives. In each case the MPG will be the same or at worst statistically insignificant differences. Someone told me the other day that he only spent £30 per week on Shell fuel where before he was spending £40 on Tesco stuff; told him to look which tankers keep pulling out of Vopak Thames terminal fully loaded and asked why people were not queueing around the block for Shell fuel (I know I would) if it was 25% better economy. Shell claim an "up to 2 litres per tankful" i.e. 4% maximum and impossible to measure outside a test rig in a lab........ Smoke and mirrors.

    Superfuels are different and certainly worth using every now and again for their much better (above bare minimum) detergent qualities, if not necessarily regularly.

    I've just retired from spending the last 30 years working with fuels and fuel blends/quality............. especially good old diesel fuel and heavier fuel oils
     
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  14. jonandshell

    jonandshell Funster

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    I think all foreign fuel is better quality than here in the UK.
    I have done the maths and foreign fuel gives 1.609 times more MPG then UK fuel.
    I love watching the miles go by on the roadsigns and marvel at how much further I get on a tank full.:)
     
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  15. Clarky

    Clarky Funster

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    After @Robert Clark started this thread I filled up with the Carrefour 'premium'? fuel at Cite Europe to see if it made any difference to economy or performance.
    For the next couple of days I had the worst mpg figures of the whole 2k mile trip.
    Could have been coincidence but I don't think so. The thing that affects mpg most of all seems to be strong head winds rather than load or terrain. Those couple of days had light winds, easy low speed driving and no motorways.
    I went back to cheap supermarket fuel afterwards and my usual 26mpg (ish) was restored.

    Richard.
     
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  16. Robert Clark

    Robert Clark Funster Life Member

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    What size engine have you got Richard?
    We average about 30mpg between fill ups on 'regular' diesel, in our 150bhp, manual.

    Regards
    Robert
     
  17. Robert Clark

    Robert Clark Funster Life Member

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    Update - Went back to the new Carrefuour filling station opposite Cite Europe a couple of weeks ago
    They also have a MH Dump Station too !!!!
     
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  18. buttons

    buttons Funster

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    Dont agree...I get less mpg from a gallon in the US than I do in the UK...:)
     
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  19. buttons

    buttons Funster

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    I filled up with superior petrol a few weeks ago simply because the shell garage didn't have normal premium. I thought this would be a good time for a comparison test as I normally use supermarket normal fuel so I used shell superior at the next three fill ups. :(
    Didn't notice a single improvement over that period so guess what....yep I am back using supermarket premium grade and happy to do so.(y)

    The Hawthorne effect a type of reactivity in which individuals modify or improve an aspect of their behavior in response to their awareness of being observed.;)
     
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  20. Robert Clark

    Robert Clark Funster Life Member

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    I occasionally use the 'Superior' fuel, but not for an improvement in performance, but to hopefully help keep the engine clean.
     
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