Supermarket Diesel ?

MrsE_2

Millionaire wrote: »

I have also heard that Shell have better fuel from a few taxi drivers.

My DH is a cabbie, he usually gets the Shell diesel & he has the points card.

jeannieblue

Millionaire wrote: »

I have also heard that Shell have better fuel from a few taxi drivers.

Shell get their fuel from taxi drivers?

No wonder MrsE is so rich...........

jeannieblue

Fruity1 wrote: »

With the exception of Sainsburys all supermarkets use additives. Sometimes the additive is briefly unavailable at the refinarys in which case I know Morrisons are not allowed to deliver more than 2 loads of fuel without additive to a store.

Shell do have additional additive in their premier products, otherwise the majority of products are the same, they all come out of the same refinarys.

Even if they do come out of same refinerys - it doesn't mean they have the same or no additives.

There is another thread on here somewhere that explains it all.

vansboy

jeannieblue wrote: »

There is another thread on here somewhere that explains it all.

What happens is quite simple, really...

The tanker driver 'orders' his load, at the refinery, using a card, which dictates the fuel & additive package, depending on it's destination. This is where the variation will take place.

As mentioned, it all comes from the same place, plus branded tankers will deliver to supermarkets, although the product is different - just the livery on the tanker might give a misleading impression.

VB

hewhoisnotintheknow

TiTheRev wrote: »

Transits aren't the most 'refined' engines, so im sure it works for you. The VAG engines are a little less tolerent of the poorer quality fuels and have been known (especially after the Tesco fiasco!) to block fuel injectors and damage lambda sensors.

OP: If the fuel prices are similar enough, I too would just stick with the branded fuels. It certainly wont hurt, whereas with the others you cant be sure!

bad design then?

Fruity1

jeannieblue wrote: »

Even if they do come out of same refinerys - it doesn't mean they have the same or no additives.

There is another thread on here somewhere that explains it all.

I agree just because they come out of the same refinery doesn't mean they have the same amount of additive just because its that particular refinery. But the tanker drivers add the additives as they load on the 'rack' in the refinery. Each driver has his remit as to the amount of each fuel to load, which additive to load and into which section of the tanker dependant upon where it is being delivered.

What I was trying to say is that Sainsburys fuels have no additives, but that the other supermarket Tescos, Asdas and Morrisons have pretty much the same amount of additive and that this hardly differs from the likes of Esso and Jet. Though yes Shell has additional additives in its premier fuels.

jeannieblue

Exactly.......

So best not to mix ones additives - and change fuel filters etc regularly as stated before.

Fuel pumps are expensive.............

Glad I drive petrol... only use BP too.

The_AA_company_representative_2

Hi

We are often asked this question by AA members.

All fuel sold in the UK has to meet the requirements of BS EN 228 for petrol and BS EN 590 for diesel. These standards allow for the inclusion of up to 5 per cent biodiesel or bioethanol.

Whichever company is buying the fuel from the depot specifies which of the available additive packages they want and this is added to the tanker just before it leaves the depot.
Although we hear garages blaming running problems on supermarket fuel, there is really no evidence that there is anything wrong with it. If you’re worried try a few tankfuls of BP Ultimate or Shell V-Power. These have excellent additives for cleaning the injectors and performance enhancers.

The problem with Tesco petrol in 2007 was caused by the accidental mixing of silicone with the fuel. This is normally used as an anti-foaming agent in diesel. The oxygen sensors became coated with silicates and the ECU thought the mixture was too rich (because it couldn’t distinguish it from soot) so made the mixture leaner and leaner until the engines couldn’t run.

jeannieblue

aatekkie wrote: »

Hi

We are often asked this question by AA members.

All fuel sold in the UK has to meet the requirements of BS EN 228 for petrol and BS EN 590 for diesel. These standards allow for the inclusion of up to 5 per cent biodiesel or bioethanol.

Whichever company is buying the fuel from the depot specifies which of the available additive packages they want and this is added to the tanker just before it leaves the depot.
Although we hear garages blaming running problems on supermarket fuel, there is really no evidence that there is anything wrong with it. If you’re worried try a few tankfuls of BP Ultimate or Shell V-Power. These have excellent additives for cleaning the injectors and performance enhancers.

The problem with Tesco petrol in 2007 was caused by the accidental mixing of silicone with the fuel. This is normally used as an anti-foaming agent in diesel. The oxygen sensors became coated with silicates and the ECU thought the mixture was too rich (because it couldn’t distinguish it from soot) so made the mixture leaner and leaner until the engines couldn’t run.

But it is the garages that are finding the fuel filters blocked and black gunky stuff in the pumps and tanks, which is gross by the way, and we are not talking about old vehicles either.

This has nothing to do with the earlier petrol problem, obviously, as we are talking about diesel.

The_AA_company_representative_2

jeannieblue wrote: »

But it is the garages that are finding the fuel filters blocked and black gunky stuff in the pumps and tanks, which is gross by the way, and we are not talking about old vehicles either.

This has nothing to do with the earlier petrol problem, obviously, as we are talking about diesel.

The black gunky stuff is likely to be a build up of deposits which have been dislodged by the biodiesel in the normal diesel. Under the RTFO (Renewable Transport Fuel Obligation) fuel companies have to add 2.5 per cent biofuels to normal mineral fuels. Ethanol is difficult to deal with so most are adding 5% biodiesl to diesel. Biodiesel has paint-stripper-like properties and it's important that fuel stations keep their storage tanks and lines very clean.
The reference to Tesco petrol was in response to TiTheRev's post - sorry I should have included a quote.