Ford diesels dont like sainsburys

Nilrem

Kilty wrote: »

As for supermarket fuel being worse than anything else? Absolute rot and I wish people would stop trying to keep this rumour alive. I put anything available in my tank (I'd !!!! in it if I thought it'd run on it) and notice no difference whatsoever.

Aye the supermarket fuel has to reach the exact same minimum standards for quality as the branded fuel.

Also the engines used in modern cars tend to be designed to work in multiple countries with few if any modifications, and what might be available in one country as the "premium" branded fuel may not be available in another country where the same exact engine is used in other cars.


smjxm09, the reason they might mention "high quality" fuel is probably partly because as has been said "Hoover recommend Persil";), but also partly because the chances are it's a standard line in the manual regardless of where you live (if you're in the UK, France, Turkey, Aus, Japan, Korea, Iraq etc).

There several different standards of diesel available for example, including iirc Marine which from memory is less refined than what we get at the petrol station but is very widely available if say you work at a Marina or near the sea, and is probably quite tempting given it's often taxed at a different rate/cheaper due to it's lower quality.

This is the sort of fuel they don't want used as "lower quality" than diesel intended for the average car engine (big marine diesel engines will run on almost anything), and seriously risks causing issues in a smaller (IE car) engine designed for efficiency, performance and low emissions.

It's also worth remembering that in some countries for a long time they routinely had different "RON" values of petrol, with some standards being much lower than others.
We use RON 95 for the basic standard unleaded here with "super" being 97 or 98, in some countries the standard unleaded is lower, with our "standard" being the "premium".
Hence the line about "premium" or "high quality" in petrol car manuals.

As long as you're using the correct RON value of petrol, or the diesel bought from a garage (regardless of it's Papa Joe's independent, Asda, or Shell), in the UK it will meet the specification for any normal car - a few cars might require "super" unleaded, not because it's a "premium" brand, but because of the higher RON value, but they will clearly state the required RON rather than the vague "high quality" line (one man's high quality is another's basic).


The only difference (if any) in the petrol or diesel you buy at the likes of Shell compared to ASDA is that it might have a slightly different mix of additives above the legal requirements, but no engine manufacturer in their right mind will build an engine for normal use that requires a specific mix of those additives, as they will vary from country to country.
They build engines to meet emissions and performance standards, when using basic fuel standards (91ron*, 95ron, 97ron petrol etc).



*Not used in the UK for a while.

Kilty_2

Finally someone who sees sense in this :T

Doesn't the USA have something daft like 87 RON unleaded? :rotfl:

smjxm09

Read and understood but while Shell fuel is the same price as ASDA I will carry on using Shell. http://www.shell.co.uk/home/content/gbr/products_services/on_the_road/fuels/fuelsave/diesel/

Gloomendoom

To try and shed a bit of light on why manufacturers recommend a particular brand of oil or fuel etc.

I used to work for a car manufacturer and we got the oil that we put in the engines, gearboxes and axles etc. at a highly discounted rate, sometimes it was provided completely free of charge.

In return we recommended to owners that they used that same brand of oil or fuel.

neilmcl

Nilrem wrote: »

Aye the supermarket fuel has to reach the exact same minimum standards for quality as the branded fuel.

Also the engines used in modern cars tend to be designed to work in multiple countries with few if any modifications, and what might be available in one country as the "premium" branded fuel may not be available in another country where the same exact engine is used in other cars.


smjxm09, the reason they might mention "high quality" fuel is probably partly because as has been said "Hoover recommend Persil";), but also partly because the chances are it's a standard line in the manual regardless of where you live (if you're in the UK, France, Turkey, Aus, Japan, Korea, Iraq etc).

There several different standards of diesel available for example, including iirc Marine which from memory is less refined than what we get at the petrol station but is very widely available if say you work at a Marina or near the sea, and is probably quite tempting given it's often taxed at a different rate/cheaper due to it's lower quality.

This is the sort of fuel they don't want used as "lower quality" than diesel intended for the average car engine (big marine diesel engines will run on almost anything), and seriously risks causing issues in a smaller (IE car) engine designed for efficiency, performance and low emissions.

It's also worth remembering that in some countries for a long time they routinely had different "RON" values of petrol, with some standards being much lower than others.
We use RON 95 for the basic standard unleaded here with "super" being 97 or 98, in some countries the standard unleaded is lower, with our "standard" being the "premium".
Hence the line about "premium" or "high quality" in petrol car manuals.

As long as you're using the correct RON value of petrol, or the diesel bought from a garage (regardless of it's Papa Joe's independent, Asda, or Shell), in the UK it will meet the specification for any normal car - a few cars might require "super" unleaded, not because it's a "premium" brand, but because of the higher RON value, but they will clearly state the required RON rather than the vague "high quality" line (one man's high quality is another's basic).


The only difference (if any) in the petrol or diesel you buy at the likes of Shell compared to ASDA is that it might have a slightly different mix of additives above the legal requirements, but no engine manufacturer in their right mind will build an engine for normal use that requires a specific mix of those additives, as they will vary from country to country.
They build engines to meet emissions and performance standards, when using basic fuel standards (91ron*, 95ron, 97ron petrol etc).



*Not used in the UK for a while.

Nicely explained. :T

whatmichaelsays

smjxm09 wrote: »

Oh yes they have. She should have read the Ford manual that has come with the car, which states the following:

"We recommend that you use only high quality fuel."

Even on the inside of the fuel filler cap there is a sticker that says Ford recommend BP.

If that is not a statement about not using supermarket fuel I don!!!8217;t know what is.

It's a myth that supermarket fuel is hugely different to any other fuel.

The reality is that, with the way that fuel distribution works, the fuel across the petrol stations in your area, regardless of what name is on the forecourt roof, will all come from the same refinery.

bigjl

skiddlydiddly wrote: »

Bigjl, you mean you only get 17-19mpg in your diesel Mondeo?I'd expect 2-3 times that, or have I misunderstood?

If you read the post correctly you will find I was referring to a Zafira CDTi Auto that I use for work.

I thought that was fairly clear.

bigjl

Hammyman wrote: »

SAY WHAT? I've driven 17 tonne wagons with that kind of fuel economy. If your Mondeo isn't getting 50MPG there's summat wrong with it and/or your driving. If its not achieving low 40's then there's definitely summat wrong with it.

When the turbo pipe split on mine this week, economy tanked by 20% from mid 50's to mid 40's.

Can you please read my post properly before posting, Thanks.

As mentioned above I was referring to a Zafira CDTi that I use for work in that sentence.

bigjl

Just to add to other comments on their casr running fine on supermarket fuel so we must all be toalking crap, my car is a Euro 4 130Tdci Mondeo, not sure what differences there arwe between the two, but there must be some otherwise it wouldn't be able to meet the Euro 4 standard.

My Xantia 1.9 TD used to run on veg oil, and any diesel going, but then it was a pretty agricultural piece of kit.

I think it is very probable that this issue could affect the newer Fords, I haven't noticed any other Diesel car run substancially worse on Tesco diesel, though my wifes Clio Dci does seem to smoke a bit more on hard acceleration on the Tesco/Asda/Morissons stuff.

Since I am able to tell just by driving my Mondeo that my wife has put Tesco diesel in it should provide all the proof that anybody needs, it also runs the same when I have put Morrisons and Asda diesel in it.

Though to be honest if you want to come on here and disagree, then good luck to you, I don't really car, it has been proved to me beyond reasonable doubt over the last two years with my Mondeo.

Though you have to consider the Mondeo injection system as a relevant fact, it is well know to be a bit sensitive to misfuelling, in that if you run it with a petrol diesel mix due to misfuelling then it may cause damage, which may lead to damaged injectors etc.

I have looked into this on a couple of Mondeo forums over the years, and there does sem to be a general agreement on the fragility of the injection system.

However any opinion that doesn't rely on personal long term use of the later Ford diesels, probably Euro 4 and better, should be treated with a pince of salt.

There is no substitute for personal experience.

pstuart

I have looked into this on a couple of Mondeo forums over the years, and there does sem to be a general agreement on the fragility of the injection system.

However any opinion that doesn't rely on personal long term use of the later Ford diesels, probably Euro 4 and better, should be treated with a pince of salt.

There is no substitute for personal experience.[/QUOTE]


Well said - enough of the 'back in the day' merchants.

We are talking Euro engines here, mine was built together with PSA NOT Perkins et al.