Thats the commonly heard excuse, but can demand for it really have increased that much since we went over £1 per litre?
Yes. The entire country is diesel obsessed. Everyone has fallen for the economy rubbish.
Asda are not a profiteering oil company. They are loving the headline grabbing attention slashing petrol is giving them as some sort of saviour of the motorist. Even they have said that at the moment, there is nothing they can do with regard to reducing diesel price. I reckon they are charging barely anything more than wholesale for their diesel.
Put the tinfoil hat away.