in supper market diesel you do not get additives put into is like you do with branded named stuff but I do believe that Tesco is the best and why? because I know the Tesco fuel is Esso but I love this new Shell v power I certainly get my grunt and better economy but I can not tell how much because every time I go to test it out my right foot suddenly gets a bit more heavy with lead , and I did have a problem struggling up to 85-90 now it goes up to 100-110 all of course in KPH LOL.

I can only think that Land Rover have tweaked the later models to run better on fancy fuel, do they now have oil company investments? they all ran perfectly well on basic fuel before circa year 2000, whats changed??

they all ran perfectly well on basic fuel before circa year 2000, whats changed??

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Thursday, 9 November, 2000
' Gordon Brown is cutting duty on low sulphur fuel. .. '
http://news.bbc.co.uk/1/hi/uk/1014912.stm

ultra low .. ( 2006 )
https://en.wikipedia.org/wiki/Ultra-low-sulfur_diesel )

Lubricity:
Sulfur is not a lubricant in of itself, but it can combine with the nickel content in many metal alloys to form a low melting point eutectic alloy that can increase lubricity. The process used to reduce the sulfur also reduces the fuel's lubricating properties. Lubricity is a measure of the fuel's ability to lubricate and protect the various parts of the engine's fuel injection system from wear. The processing required to reduce sulfur to 15 ppm also removes naturally-occurring lubricity agents in diesel fuel. To manage this change ASTM International (formerly the American Society for Testing and Materials) adopted the lubricity specification defined in ASTM D975[21] for all diesel fuels and this standard went into effect January 1, 2005.[22] The D975 standard defines two ULSD standards, Grade No. 2-D S15 (regular ULSD) and Grade No. 1-D S15 (a higher volatility fuel with a lower gelling temperature than regular ULSD).

The refining process that removes the sulfur also reduces the aromatic content and density of the fuel, resulting in a minor decrease in the energy content, by about 1%. (Citation needed) This decrease in energy content may result in slightly reduced peak power and fuel economy.

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from:
http://www.simplemotoring.co.uk/supermarket-vs-branded-fuels/#.V7jsVjdXbHg

What About Supermarket Fuels?
There are all sorts of stories that go round about supermarket fuels, but the fact is that supermarket fuel tanker lorries are often seen filling up from the same tanks as branded fuel lorries (e.g. Shell, BP) – so the chances are that most of the time, the fuel they sell is the same, although again, it may have different additives packages.

However, one common story about supermarket fuel is that some supermarkets don’t have a regular fuel supplier. Instead, they buy odd lots of fuel from wherever it’s cheapest, including abroad. This could (if it happened) lead to supermarket fuel having a more variable set of additives than branded fuels.

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