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Is supermarket fuel different?


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I've talked to people who say no it's all the same but i'm also a member oif a couple of car related forums and the general consensus is yes it is different,i've had dodgy petrol from Tesco before i know it for a fact,one incident was well publicised nationaly.

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From What Car:

 

According to the Petrol Retailers Association, there is no difference between the standard petrol you buy from supermarkets or franchised petrol stations. In most cases the petrol and diesel is even produced at the same refinery and delivered in the same trucks.

 

The exception to this is specialist fuels, such as Shell’s Optimax and BP’s Ultimate. In their case, the fuel is enhanced with additives, which produce that brand’s particular properties.

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I've talked to people who say no it's all the same but i'm also a member oif a couple of car related forums and the general consensus is yes it is different,i've had dodgy petrol from Tesco before i know it for a fact,one incident was well publicised nationaly.
Been through that mill myself a few times.

 

I can vouch there has definitely been a difference between Tesco and Shell in the past 3 years or so, as I was using both on a regular basis with a petrol 06 Impreza. In the end, we were nearly always filling up at Shell.

 

The Impreza was very sensitive to petrol 'quality' (much prefers 97/98Ron over 95Ron, to begin with), and misfires/juddering/loss of power only ever happened with Tesco fuel (95 and 99Ron). We used to fill at the Dinnington one.

 

We'd always had the car serviced at Monty's or Europa, and asked them to diagnose the 'problem' on a couple of occasions. Every time the 'puter gave the all-clear about the car/engine management. By process of elimination, that leaves the fuel at fault.

 

These days I wouldn't know, as I now drive a diesel and can't tell any difference.

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The quoter above is correct - all of the fuel retailers take fuel from the nearest terminal, either close to a refinery or one of the distribution terminals in the national fuel pipeline.

 

Additives are the difference - the majors tend to put a better additive pack in their fuel, and that's not just for the 'special' types. It's actually put in as the tanker is being filled.

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