Home > Technical (L322) > Is V-Power Diesel worth it for a TDV8? |
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A1GSS Member Since: 24 Dec 2010 Location: Saffron Walden, Essex Posts: 1973 |
I tried one tankful, no noticeable difference in my consumption. Might possibly have been slightly smoother,but that's not definitive. Extra 8 quid a tank Graham
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10th Oct 2012 12:55pm |
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goldsax Member Since: 16 Jul 2012 Location: leicestershire Posts: 196 |
Same here,tried it last week , no difference. 2011 4.4 TdV8 Nara Bronze |
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15th Oct 2012 9:53pm |
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Gazellio @ Prestige Cars Member Since: 22 Jan 2010 Location: Chilterns, UK Posts: 11309 |
Unlikely to make much performance difference as the engined is tuned to the 95 Octane but it will make a difference to the MPG long term and should improve long term wear and keep the injectors clean due to the additives. |
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15th Oct 2012 10:24pm |
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Philip Member Since: 05 Jan 2010 Location: UK Posts: 2564 |
This is diesel - cetane not octane (and not 95!). A higher cetane number means shorter ignition delay and (in theory) more complete combustion of the fuel leading to increased power, economy and smoother running. Presumably most "premium" diesel also has some blend of additives in it to clean injectors etc. Can't say I've noticed any obvious difference in performance or economy on the odd occasion I've put it in. |
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15th Oct 2012 10:39pm |
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Gazellio @ Prestige Cars Member Since: 22 Jan 2010 Location: Chilterns, UK Posts: 11309 |
It was late and was thinking Petrol but you know what I meant.... |
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16th Oct 2012 6:02am |
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dave699 Member Since: 03 Apr 2012 Location: Redcar Posts: 457 |
In the past I've used an additive, which is designed to clean injectors and boost the cetane rating of the diesel.
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16th Oct 2012 6:54am |
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ebajema Member Since: 24 Mar 2011 Location: New Plymouth Posts: 4782 |
I think if you use a "premium" fuel or additive, it will take a while to see the effect. First of all the cleaning of the fuel system and sometimes even cylinders/exhaust takes a while. I would expect it to show a difference after a few tanks (say 3 to 4) of continuous running on premium fuel, depending on the age of the car. It takes a bit of time to clean the fuel system and engine.
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16th Oct 2012 7:44am |
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JW911 Member Since: 09 Dec 2008 Location: Hampshire, UK Posts: 228 |
I've decided to run it on V-Power for the first few tanks to flush the system through and then revert to the regular stuff.
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16th Oct 2012 7:57am |
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T24RES Member Since: 22 Nov 2010 Location: Henley-on-Thames Posts: 936 |
I'd be pleased to see anything over 25mpg |
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16th Oct 2012 11:45am |
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jfb1977 Member Since: 29 Apr 2012 Location: Bury St Edmunds Posts: 563 |
I'd take 19 mpg... Past (too many to list, but a few favs)...
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16th Oct 2012 12:24pm |
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JW911 Member Since: 09 Dec 2008 Location: Hampshire, UK Posts: 228 |
The last one did 17mpg with the wind behind it. 2012 4.4 TDV8 Westminster
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16th Oct 2012 2:04pm |
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Lloyd Barnes Member Since: 21 Apr 2011 Location: Shrewsbury Posts: 181 |
They do vary a bit then, mine hovers around 27mpg, and I do mostly steady motorway driving. Happy enough with that as thats what I was getting before from the Touareg but 30mpg would be brilliant... how in God's name do you get it to do that!? Lloyd Barnes
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16th Oct 2012 2:24pm |
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Vogue Member Since: 31 Jan 2008 Location: on the hill Posts: 3742 |
the only difference I noticed was in my wallet |
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16th Oct 2012 6:57pm |
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