Dirty petrol?

There's a probe into contaminated petrol (gasoline) brought from the Morrison and Tesco Supermarket petrol stations after complaints that it has caused damage to sensors in some car fuel systems. The effect is to cut power to prevent damage to the engine this in turn puts the car into 'Limp home' mode which my little car has and I know too well as I have had a damaged sensor which caused my car to go into limp home mode! Effective yes, Frustrating too and costly to repair if not insured or under warranty.

When I say some cars, it rather strangely is the more select cars ie Mercedes, Saab etc and the more elite cars within the middle of the range car sector?
Now there could be some truth in this story but so far tests have revealed NO irregularities.

Motorists in the south-east of England have been warned Today to be wary of engine problems after filling up their tanks. Those who's cars have been affected have been told by the Society of Motor Manufacturers and Traders, to keep their petrol receipts who also said: "Our advice is that motorists should keep all fuel receipts and note the mileage for each purchase.”
The SMMT advised drivers whose cars appeared to be affected to contact their car dealer or their car manufacturer’s customer service department for technical advice, and the Trading Standards Office for legal advice.

At least Tescos and Morrisons have held up their hands and said their have been some complaints (about 100). No other Supermarkets as of yet have said there is a problem with their fuel so it could be a small issue contained to a small amount of petrol stations? Lets hope so.

I have a diesel engine and we go to Sainsburys (thankfully) but as a total coincidence, we have had to have our sensor monitor replaced on a recall because my car went into limp home mode constantly from NEW. That had nothing to do with what we put into it.

I am concerned however that some people will catch on to this as a money making scheme and pretend that their issues with their cars are caused by 'contaminated petrol' and look for a quick buck?

The question is; are the extra additives which are put in be the supermarket own stations causing the problem? The fuel is much the same as what is supplied to other companies but this is a story that has legs.