What in God's name is "Washed Diesel"?!!!

As for water fragments in tanks - it would be very small amounts - I used to install pipework and pumps years ago and have actually been down into tanks to check them - never noticed any sign of water even in the small amount left in the bottom of the tank.

E

Washed diesel is bad quality diesel, when I worked for Nissan we had huge problem s with injector pumps on certain models and it was down to water traces in diesel, not sure how common it is in the uk but its deffinatly common here so it's worth it to pay the extra few cents for good diesel.

And warth at the end of the day there is bad fuel out there so u need to come to terms with it and by all the post s above ur the only one that thinks fuel is fuel!

Edited 24 April, 201214 yr by Davidsr20

I think washed is where they remove the dye from red/green diesel to make it look normal.

Exactly which leads to bad fuel.

So what you're saying then, is that if the fuel is bad and doesn't meet the standards of EN590, then a modern car won't like it.

So any EN590 fuel is fine

So what you're saying then, is that if the fuel is bad and doesn't meet the standards of EN590, then a modern car won't like it.

So any EN590 fuel is fine

Kind of my point!

This is a non-issue. The percentage of dodgy fuel on the market is so infinitesimally small it's not worth worrying about and I stand by my comment about the claptrap around improved performance from "premium" derv. If there is a gain it's probably so slight as to not be worth the increased costs of fuel.

Come on guys think about it - you are Mr.Shell and you are trying to make more money "I know, lets come up with a Super Derv and market it as improving the performance of all those speedy diesels". Well you would wouldn't you?!!

It's the placebo effect and those of you taken in by it should consider taking two earplugs instead of the Asprin and calling the doctor in the morning

As for "there is bad fuel out there so u need to come to terms with it and by all the post s above ur the only one that thinks fuel is fuel!" - Seriously I used to notice a difference in some of my faster petrol cars in the past but I've tried the premium derv stuff in my two VRS's and prior to that a remapped 150bhp Punto Multijet and my old mans remapped 1.3 Panda Multijet (85bhp and hilarious to drive!) and there is no noticable performace gain. I've even filled up with the stuff by mistake once and it was a waste of time. Hey, be my guest - go and spend your money on premium derv! It's no skin off my nose and I mean it's not as if fuel isn't at an all time high cost already and we wouldn't want to line the pockets of the fule companies unecessarily would we?!

Have to agree, not all fuel is the same fuel. This has been proven many times, yes the differences may not be hugely different but then again nor are alot of things for car maintenance. For example Morrisons own brand engine or Comma/Car lube/Casterol....i know which i would choose.

If your car goes does the school run of a massive 2 miles and Tesco once a week, no, you will not notice the different but if you actually use your car on a daily basis and do more then 20 mile per day its becomes more obvious, its just a case of if your engine has a preference, that may sound daft but i whole heatedly agree mine prefers Shell to supermarket fuel

Here here well said ema

Have to agree, not all fuel is the same fuel. This has been proven many times, yes the differences may not be hugely different but then again nor are alot of things for car maintenance. For example Morrisons own brand engine or Comma/Car lube/Casterol....i know which i would choose.

But one of those companies will have made it for them.

There is little fact and mostly perception behind what you're saying there. (Nothing wrong with that, it's how branding works).

If your car goes does the school run of a massive 2 miles and Tesco once a week, no, you will not notice the different but if you actually use your car on a daily basis and do more then 20 mile per day its becomes more obvious, its just a case of if your engine has a preference, that may sound daft but i whole heatedly agree mine prefers Shell to supermarket fuel

I'm sorry, on a tuned petrol car where you're trying to avoid pinking, then petrol makes a difference.

On a derv, it's derv.

The old ones could pretty much run on crude from some of the lighter reserves.

The new ones have to run on EN590 and do fine.

If you could ever prove a problem was because you used cheap fuel (EN590 all is in the UK) then you could have the car maker up for selling a prodiuct that doesn't meet EU/UK laws.

I had to use v-power a few times as it's all that was left, and each time the MPG on it was lower, even when I thought what the heck and gave it a couple of tanks as i had a voucher.

If it was 1p per litre more, then maybe I'd buy it for the extra additives they claim are in there. At these prices no way, millers if much cheaper and a double dose every few months would do the same job.

FWIW, V-Power Derv, is just a gas to liquid fuel. They've used gas and combined the short hydrocarbon chains, to make longer ones (10-12 C) which are what makes up diesel.

It's the expensive way of doing it when compared to doing it direct from crude oil and distilling off the fractions such as kerosene, petrol (in theory octane or there abouts), derv and shipping fuel oil etc.

Still if you like it, then I'm fine with people paying more for fuel.

I've owned two cotroen hdi's, one skoda 1.9 tdi 110 and now a Renault dci, none of which have ever run any better or got more mpg on premium fuel. My daily commute is 50 miles round trip and the skoda got 65mpg plus just as easily on morrisons or asda fuel as it did on shell vpower diesel.

But one of those companies will have made it for them.

There is little fact and mostly perception behind what you're saying there. (Nothing wrong with that, it's how branding works).

I'm sorry, on a tuned petrol car where you're trying to avoid pinking, then petrol makes a difference.

On a derv, it's derv.

The old ones could pretty much run on crude from some of the lighter reserves.

The new ones have to run on EN590 and do fine.

If you could ever prove a problem was because you used cheap fuel (EN590 all is in the UK) then you could have the car maker up for selling a prodiuct that doesn't meet EU/UK laws.

I had to use v-power a few times as it's all that was left, and each time the MPG on it was lower, even when I thought what the heck and gave it a couple of tanks as i had a voucher.

If it was 1p per litre more, then maybe I'd buy it for the extra additives they claim are in there. At these prices no way, millers if much cheaper and a double dose every few months would do the same job.

FWIW, V-Power Derv, is just a gas to liquid fuel. They've used gas and combined the short hydrocarbon chains, to make longer ones (10-12 C) which are what makes up diesel.

It's the expensive way of doing it when compared to doing it direct from crude oil and distilling off the fractions such as kerosene, petrol (in theory octane or there abouts), derv and shipping fuel oil etc.

Still if you like it, then I'm fine with people paying more for fuel.

Oh yeah, im not saying Morrisons will have its own oil refining..erm place but you get my point

As for diesel/petrol, times have moved on like you mentioned and yes many of todays diesel will run on pretty much anything, i bet i could run mine on chip fat oil happily but what im about is the margin of how much the engine will tolerate. Im not that old so do forgive but a friend ran his 406 diesel on chip fat oil for a good 6 month, yes it eventually went bang as he would not mix it with diesel and some one else thought it would a mint idea, ran his little Citroen AX (or something like that) on nothing but chip fat and it give up the ghost within 2 month, a diesel is not just a diesel.

Compression ignitions are as simple as can be but the only real thing separating petrol from diesel is a simple spark plug, people need to get the idea out of their head a petrol is race car and diesels should be chugging round a field. As for the V Power, i didt think it was claimed that it would achieve a higher MPG figure? Either way it has a quicker burn rate and will give a cleaner burn, less carbon ect ect (only by very small measures) but it will make a marginal difference, enough to see if you were testing two identical but on a day to day basis you will never notice it.

Can i shut up ranting now

Edited 24 April, 201214 yr by Ema_jane

Make no mistake - I am a marketing mans dream and if I thought there was genuine worth in running premium diesel I'd be on it like a shot!!

Personally I'd rather put the difference towards some music :-)

As for diesel/petrol, times have moved on like you mentioned and yes many of todays diesel will run on pretty much anything, i bet i could run mine on chip fat oil happily but what im about is the margin of how much the engine will tolerate. Im not that old so do forgive but a friend ran his 406 diesel on chip fat oil for a good 6 month, yes it eventually went bang as he would not mix it with diesel and some one else thought it would a mint idea, ran his little Citroen AX (or something like that) on nothing but chip fat and it give up the ghost within 2 month, a diesel is not just a diesel.

The XUD runs great off cooking oil, but the HDI might be a bit more fussy.

Compression ignitions are as simple as can be but the only real thing separating petrol from diesel is a simple spark plug, people need to get the idea out of their head a petrol is race car and diesels should be chugging round a field. As for the V Power, i didt think it was claimed that it would achieve a higher MPG figure? Either way it has a quicker burn rate and will give a cleaner burn, less carbon ect ect (only by very small measures) but it will make a marginal difference, enough to see if you were testing two identical but on a day to day basis you will never notice it.

The burn rate isn't going to matter one jot in a derv though.

It runs with a massive excess of air and due to the length of the hydrocarbon chains, will not burn fully at higher rpm.

The time take to fully oxidise a molecule of "diesel" is not going to change that much and the ignition take place at the point of maximum compression.

In a petrol car, if it blows up early/late you've got problems.

That's part of the reason, you'll end up with more smoke out the back at high RPM.

Now sure, if the derv you put in was mostly longer chained molecules, then you might have an issue, but that's what a minimum cetane rating etc is all for in the spec.

Can i shut up ranting now

Oh go on then ..

Like I say, if you're happy to spend the money, then I'm not going to try and force you to change your mind.

Still my point though, a diesel is not just a diesel and after all that i dont use V power i use Shell fuel save/regular diesel. End of the day no matter what anyone says it made a difference to my engine.

Pfft ignorant petrol people they dont know what their missing

in scotland all derv deliveries comes out of grangemouth oil refinary.Every brand of derv comes out of same tank. FACT there is no differance in any of the fuels

Lots of interesting discussion, but mine's another vote for Shell Fuel Save (standard) diesel. Don't know where it comes from or what they put in it, but having tried all sorts, Shell definately gives me an extra 3 to 4 mpg.

in scotland all derv deliveries comes out of grangemouth oil refinary.Every brand of derv comes out of same tank. FACT there is no differance in any of the fuels

Sorry but some Diesel contain aditives added at the pump, some don't. FACT.

U gota love that derv word it's just as easy say diesel lol

Sorry but some Diesel contain aditives added at the pump, some don't. FACT.

which pumps? most filling stations manned by people behind a desk and wont no the differance as i have asked at shell the differance between ordinary and v power derv and all they say is the price.i work in haulage and get about 20000 litres a month from differant suppliers each time,price dependant, and the tanker drivers out of grangemouth fill out off same tanks bp,shell,tesco,asda morrisons .FACT

U gota love that derv word it's just as easy say diesel lol

NOT when you have red diesel its not

All fuel has to be made to a certain specification fact.

So how can there be so much difference...there is non. There is a specification that all fuel will have to reach to be able to be sold so the manufactures make that and then it get sent out to whoever buys it big fuel suppliers or supermarkets it all comes from the same places and the same refinery's.

I've used all fuels supposed good and bad and never ever noticed any difference in them apart from running my old legacy on normal unleaded when I couldn't find super. But that was to do with the fact it must run on super all the time.

which pumps? most filling stations manned by people behind a desk and wont no the differance as i have asked at shell the differance between ordinary and v power derv and all they say is the price.i work in haulage and get about 20000 litres a month from differant suppliers each time,price dependant, and the tanker drivers out of grangemouth fill out off same tanks bp,shell,tesco,asda morrisons .FACT

I'm not disputing the fact that all diesel is the same when it arrives at the forecourt or it all comes from the same big tank at the refinery but Shell/BP/Esso etc add additives at the pumps. I don't really care if the man taking your money knows about fuel or not but Additives are added at the pumps FACT

http://www.honestjoh...-they-that-bad-

which pumps? most filling stations manned by people behind a desk and wont no the differance as i have asked at shell the differance between ordinary and v power derv and all they say is the price.i work in haulage and get about 20000 litres a month from differant suppliers each time,price dependant, and the tanker drivers out of grangemouth fill out off same tanks bp,shell,tesco,asda morrisons .FACT

You'd think there'd be some kind of law against advertising something as better and selling it at a higher price if there is no difference apart from the price.

Shell got into trouble for saying fuel save would save you fuel over a tank, because there was no proof of this. FACT!

Yep, the ASA told them to stop using that advert.

...

Edited 26 April, 201214 yr by FriendlyFire

I've just driven 300 miles up and down wales on hilly roads, using bp ultimate, which costs no.more than Asda petrol and got 9mpg more than with Asda fuel, based on maxidot. These roads do lend themselves to better economy and there are other variables but my driving style was similar and both readings were from maxidot, so some of this 9mpg is due to the fuel I'd say.

which pumps? most filling stations manned by people behind a desk and wont no the differance as i have asked at shell the differance between ordinary and v power derv and all they say is the price.i work in haulage and get about 20000 litres a month from differant suppliers each time,price dependant, and the tanker drivers out of grangemouth fill out off same tanks bp,shell,tesco,asda morrisons .FACT

I believe the additives are added at the refinery as the lorries are loaded so whilst the base fuels in many cases are the same the nice chemists at Shell & the like have secret potions to add.

Not an expert on Diesel but with Petrol there definately is a difference, not only on performance but also mpg but you need to try 2 or 3 tanks of each to get a good feel. With issues I have had with Tescos High Octane fuel I will only use supermarkets for petrol if everywhere else is sold out, agreed personal choice but one Im happy with.