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What do Tesco do to their fuel??
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Strider590 wrote: »It's often been said that certain cars don't like supermarket diesel. Again I suspect it's to do with additives (which are added when it reaches the petrol station).
At this time of year it could also be that Tesco have switched over to winter diesel too soon?
Who knows?
There are no additives added at the petrol station. They would be added at the depot.0 -
Again though, this implies that the only reason modern diesel engines are not breaking down, is that the fuel suppliers are kindly adding stuff that isn't in the standards.
So, the engine manufacturers are making design decisions which they really have no business employing, as they cannot guarantee that the (perfectly good) fuel is going to compensate for their bad practices.0 -
Again though, this implies that the only reason modern diesel engines are not breaking down, is that the fuel suppliers are kindly adding stuff that isn't in the standards.
So, the engine manufacturers are making design decisions which they really have no business employing, as they cannot guarantee that the (perfectly good) fuel is going to compensate for their bad practices.
No, it's because (as I have said in other threads), supermarkets use the lowest possible legal specifications for their fuel, and sell it on price (not always the case these days), and convenience for people who are visiting the supermarket anyway. The big brands use performance or economy to sell their fuel, which is usually the theme of their advertising.0 -
Jamie_Carter wrote: »No, it's because (as I have said in other threads), supermarkets use the lowest possible legal specifications for their fuel, and sell it on price (not always the case these days), and convenience for people who are visiting the supermarket anyway. The big brands use performance or economy to sell their fuel, which is usually the theme of their advertising.
But that's the whole point -- engine manufacturers MUST engineer their products to be compatible with precisely that lowest legal specification. That is the reason we have standards.
The engine makers are relying on the fuel companies to compensate for design deficiencies by building in additives. That is not an acceptable situation -- the engines are not fit for purpose.0 -
What complete and utter rubbish. Recovery man hauls in multiple cars with fuel that doesn't fire indeed (something you didn't even mention originally so there's not much wriggle room to invent things then claim to have said them later). Presumably these vehicles all broke down at the service station -- as that's the only way your story would even work.
Next time you invent bo11ocks, at least make it convincing.
What the chuff are you talking about ? The anecdotal evidence im providing is from a gentleman that makes his living as a recovery technician. The cases im referring to are at various times and locations throughout his working life involving different makes and models of vehicles. I havent added anything to this, as you can tell by the lack of sensationalism in the story. Yes it is second hand but the details-of which there are few, are correct and not mistaken or altered. I have no gain from what im saying and care not if it is read or paid attention to. However i do object to your trolling response of its "b******ks". Im an adult with things to do. It appears the same is not true for you. If you wish to engage in petty name calling arguements crack on but this is not amussing me currently so i will jot be joining you. If you doubt the authenticity of my posts i can provide details of the gentleman that provided me with the above info and you can confirm it with him.0 -
But that's the whole point -- engine manufacturers MUST engineer their products to be compatible with precisely that lowest legal specification. That is the reason we have standards.
The engine makers are relying on the fuel companies to compensate for design deficiencies by building in additives. That is not an acceptable situation -- the engines are not fit for purpose.
Modern diesels most certainly are fit for purpose.
Modern diesels also run perfectly well on fuel as specified in the manufacturers handbook. Note, the specification in the handbook may not be the same as the specification at the pump.
Here's an example from my petrol days... I had a car with a GM designed 2.2l petrol engine in it. I could put UK petrol in it with no problem. In the handbook it warned me not to use petrol to a different spec. The spec I wasn't to use was that sold in France. Is it the engine manufacturers fault that French petrol is a different standard to the rest of Europe? No.
Is it up to the engine manufacturer to redesign their engine so I could fill up in France? No.
Modern diesels are more complex than their counterparts of 10+ years ago, but they also fall in line with modern emissions requirements and are pretty impressive in terms of performance. If a modern diesel is serviced appropriately, is taken for regular blasts and has regular oil changes, it will work for years to come.
To say that all modern diesels are not "fit for purpose" shows a lack of understanding of modern motoring regulations and engine design.1. Have you tried to Google the answer?
2. If you were in the other person's shoes, how would you react?
3. Do you want a quick answer or better understanding?0 -
Yep this^^.
Tesco ketchup isnt as good as heinz but is ok. Same for fuel. Recovery technician mate of mine has taken petrol back to them and put lit matches in it to show it wont burn. Cheap and cheerful/sometimes nasty. Avoid if possible.0 -
Here's an example from my petrol days... I had a car with a GM designed 2.2l petrol engine in it. I could put UK petrol in it with no problem. In the handbook it warned me not to use petrol to a different spec. The spec I wasn't to use was that sold in France. Is it the engine manufacturers fault that French petrol is a different standard to the rest of Europe? No.
Is it up to the engine manufacturer to redesign their engine so I could fill up in France? No.
Fair comment, except:
It would be very much the manufacturer's fault if they sold those cars in France where they knew that the standard fuel available was unsuitable.
If (minimum) EN standard fuel, as sold by the supermarkets, really does give all these anecdotal problems with a modern engine then that engine shouldn't be sold in a market place where that's the only guaranteed fuel quality you can get.
Bear in mind that the EN standards are the only written standards that even BP, Esso and so on guarantee that their fuel will meet because it's the only written standard for road fuel available in the UK! They may, or may not, exceed that standard in any of a number of ways but there's no way of knowing in what way or by how much. All you know is that it's "at least" up to EN quality regardless of what pump you fill at.0 -
Joe_Horner wrote: »Fair comment, except:
It would be very much the manufacturer's fault if they sold those cars in France where they knew that the standard fuel available was unsuitable.
Yes, when the French changed their fuel, that engine was taken off the market, AFAIK.Joe_Horner wrote: »If (minimum) EN standard fuel, as sold by the supermarkets, really does give all these anecdotal problems with a modern engine then that engine shouldn't be sold in a market place where that's the only guaranteed fuel quality you can get.
If there is proof (rather than anecdotal evidence), then both the engine and the fuel quality should be checked.
But unless every one of these tests is carried out filling up a completely empty tank each time, then it's impossbile to prove how much the fuel has to do with this and how much is perceived, etc.1. Have you tried to Google the answer?
2. If you were in the other person's shoes, how would you react?
3. Do you want a quick answer or better understanding?0 -
If there is proof (rather than anecdotal evidence), then both the engine and the fuel quality should be checked.
Agreed. In fact, the fuel is checked far more regularly than the engine design and pity the fuel supplier that's dropped below the required standard - especially on a regular basis!But unless every one of these tests is carried out filling up a completely empty tank each time, then it's impossbile to prove how much the fuel has to do with this and how much is perceived, etc.
Yep, and even then you'd have to allow for so many other, non-fuel-related, variables that the results probably wouldn't be conclusive!0
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