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DefenderOfTheEarth

Member Since: 09 Nov 2010
Location: Cornwall, UK
Posts: 1304

2007 Defender 110 Puma 2.4 XS CSW Tonga Green

Another thing with premium fuels - this applies to petrol and might not be the same for diesel...

The premium fuels have a slightly higher octane (or cetane for diesel) rating. They are used a lot less than the normal fuels so tend to sit around longer. Meanwhile this octane rating drops - think of it like a charged up high capacity battery. The higher the mAh, the faster the degradation.

So there may actually be cases where your posh fuel is actually a lower octane rating than your normal fuel. I need to research if the same happens to diesel and cetane ratings but I wouldn't be surprised if it's the same.

Running a Defender on premium fuel just seems wrong too - why not stick 20s and low profile tyres on while you're at it?!

I WILL spend more money when I feel it's justified but in this case, I am deeply unconvinced. 99% of "results" seem to be subjective. I want hard science not some vague comments about "feel" and "better mpg" Defender 110XS SW gone... now VW California 180 4 Motion.

8th Dec 2011 9:10am

Birdy

Member Since: 07 Oct 2011
Location: CÃ´te d'Azur
Posts: 869

2011 Defender 110 Puma 2.4 XS CSW Santorini Black

The following may or may not be relevant to diesel fuel:

It HAS been proven that BP, Shell, Esso etc. petrol gives better fuel consumption than that sold in supermarket filling stations and, provided the price differential isn’t too much, will work out in the end more economical (most recent survey done by the German ADAC and published in their magazine). I avoid supermarket fuel whenever I can.

It HASN’T been proven - at least to my satisfaction - that V-Plus etc. gives any mpg benefits, and any perceived advantages may well be subjective (I’ve experimented with 2SO in my Puma, couldn’t detect any difference at all, other than that it now seems to throw out more black smoke when cold - hope I haven’t b….red anything).

BUT, I also run a Morgan and friends with V8s which are susceptible to failing the MOT because of emissions have time and time again got them through after tanking up with Super Duper Premium or whatever and giving it a good run through. So there must be SOME difference…

Peter

(just checked daughter’s Fiesta - the petrol filler is on the OPPOSITE side to that suggested by the fuel gauge)

8th Dec 2011 1:15pm

TheTechnobear

Member Since: 28 Jan 2011
Location: Guadix, Spain
Posts: 54

2007 Defender 110 Puma 2.4 SW Chawton White

I put bp ultimate in this time around, and would definitely say its quieter and smoother than before.
not tried 2so yet, but will do.

Ultimate is only 6 euro cents more than regular here, and bp is my regular garage anyway,
I reckon 2so would work out at 3c, so tempted to use ultimate.

Is there a good reason not to use every tank, except cost?

8th Dec 2011 5:37pm

johnnyturbo2002

Member Since: 21 May 2009
Location: Poniente Granadino
Posts: 371

2008 Defender 110 Puma 2.4 CSW Java Black

TheTechnobear wrote:
I put bp ultimate in this time around, and would definitely say its quieter and smoother than before.
not tried 2so yet, but will do.

Ultimate is only 6 euro cents more than regular here, and bp is my regular garage anyway,
I reckon 2so would work out at 3c, so tempted to use ultimate.

Is there a good reason not to use every tank, except cost?

How does repsol compare? Always run that or avia when I am in Spain... 2008 Defender 110 60 year Edition (sold unfortunately)
IN the hunt for another Puma for the wifey!
2008 Kia Sorento LX ðŸ˜ 2.5crdi

8th Dec 2011 7:12pm

TheTechnobear

Member Since: 28 Jan 2011
Location: Guadix, Spain
Posts: 54

I was running the normal repsol before (as well as normal bp) , so what my comparison was.
I've not tried the premium repsol (e+10 ?) yet...

Bare in mind only had the truck for a month or so, so still trying things out

( funny, I used to live in Zurich ... Before I moved to Spain recently, im going to miss the snow abit

)

8th Dec 2011 7:29pm

ZeDefender

Member Since: 15 Sep 2011
Location: Munich
Posts: 4731

2011 Defender 110 Puma 2.4 SW Baltic Blue

Re: Diesel quality

johnnyturbo2002 wrote:
ZeDefender wrote:
Filled up with ridiculously expensive Shell V-Power Diesel for the last two tanks - no discernible increase in power, and fuel consumption was the same (actually worse) than with the standard grade. Back to the cheap stuff and 2-stroke then.
I know it's pathetic but I really thought there would be a difference
Any other experiences?
Matt

hi Matt,
Why don't you try some of the other brands that are in Germany...avia? Aral? They should be cheaper and just as good, with having to use 2stroke.

We have Esso and Aral near us (no BP sadly) and their prices are competetive. Any info on the quality?
Cheers
Matt Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing...

8th Dec 2011 8:17pm

Augusto

Member Since: 01 Feb 2011
Location: Munich
Posts: 35

2011 Defender 110 Puma 2.4 SW Alpine White

Hey guys, do you really believe in marketing managers who name funcy names to their own products. All eu diesels are amost the same and they are pruduced in simiar facilities.
Sorry, only marketing strategies in my own opinion.

8th Dec 2011 9:09pm

ZeDefender

Member Since: 15 Sep 2011
Location: Munich
Posts: 4731

Augusto wrote:
Hey guys, do you really believe in marketing managers who name funcy names to their own products. All eu diesels are amost the same and they are pruduced in simiar facilities.
Sorry, only marketing strategies in my own opinion.

Even if that were true, I'm sure the storage in some of the Tankstellen round here is pretty bloody awful

There's at least one cheap "no-namer" I will never go to again - I was sure my Audi was dying a few km later... Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing...

8th Dec 2011 9:23pm

xatzhs

Member Since: 12 Dec 2010
Location: Northumberland & Down South
Posts: 258

2007 Defender 110 Puma 2.4 XS CSW Java Black

I've been told that the super amazing diesel burns cleaner and is better for the engine?? As a result I put it in from time to time whenever I stop somewhere that has one.

How much of this is true?

p.s I would say that super diesel runs a bit smoother. Never good enough at maths/have a calculator around at the right time to work out MPG differences... but nothing noticeable on that front for me.

9th Dec 2011 12:15am

Augusto

Member Since: 01 Feb 2011
Location: Munich
Posts: 35

Re: Diesel quality

ZeDefender wrote:
johnnyturbo2002 wrote:
ZeDefender wrote:
Filled up with ridiculously expensive Shell V-Power Diesel for the last two tanks - no discernible increase in power, and fuel consumption was the same (actually worse) than with the standard grade. Back to the cheap stuff and 2-stroke then.
I know it's pathetic but I really thought there would be a difference
Any other experiences?
Matt

hi Matt,
Why don't you try some of the other brands that are in Germany...avia? Aral? They should be cheaper and just as good, with having to use 2stroke.

We have Esso and Aral near us (no BP sadly) and their prices are competetive. Any info on the quality?
Cheers
Matt

Aral belongs to BP as far as I know. Should be same fuels.

9th Dec 2011 7:23am

Augusto

Member Since: 01 Feb 2011
Location: Munich
Posts: 35

Re: Diesel quality

ZeDefender wrote:
johnnyturbo2002 wrote:
ZeDefender wrote:
Filled up with ridiculously expensive Shell V-Power Diesel for the last two tanks - no discernible increase in power, and fuel consumption was the same (actually worse) than with the standard grade. Back to the cheap stuff and 2-stroke then.
I know it's pathetic but I really thought there would be a difference
Any other experiences?
Matt

hi Matt,
Why don't you try some of the other brands that are in Germany...avia? Aral? They should be cheaper and just as good, with having to use 2stroke.

We have Esso and Aral near us (no BP sadly) and their prices are competetive. Any info on the quality?
Cheers
Matt

Aral belongs to BP as far as I know. Should be same fuels.

9th Dec 2011 7:24am

Augusto

Member Since: 01 Feb 2011
Location: Munich
Posts: 35

Re: Diesel quality

ZeDefender wrote:
johnnyturbo2002 wrote:
ZeDefender wrote:
Filled up with ridiculously expensive Shell V-Power Diesel for the last two tanks - no discernible increase in power, and fuel consumption was the same (actually worse) than with the standard grade. Back to the cheap stuff and 2-stroke then.
I know it's pathetic but I really thought there would be a difference
Any other experiences?
Matt

hi Matt,
Why don't you try some of the other brands that are in Germany...avia? Aral? They should be cheaper and just as good, with having to use 2stroke.

We have Esso and Aral near us (no BP sadly) and their prices are competetive. Any info on the quality?
Cheers
Matt

Aral belongs to BP as far as I know. Should be same fuels.

9th Dec 2011 7:24am

ZeDefender

Member Since: 15 Sep 2011
Location: Munich
Posts: 4731

Re: Diesel quality

Augusto wrote:
Aral belongs to BP as far as I know. Should be same fuels.

Blilliant - cheers! Tell someone you love them today because life is short.
But shout it at them in German because life is also terrifying and confusing...

9th Dec 2011 8:28am

johnnyturbo2002

Member Since: 21 May 2009
Location: Poniente Granadino
Posts: 371

TheTechnobear wrote:
I was running the normal repsol before (as well as normal bp) , so what my comparison was.
I've not tried the premium repsol (e+10 ?) yet...

Bare in mind only had the truck for a month or so, so still trying things out

( funny, I used to live in Zurich ... Before I moved to Spain recently, im going to miss the snow abit )

Snow...none yet, not even cold really... I miss my Spanish summer sun.
Even funnier,we will buying in Spain...not sure if it will be in Valencia or Navarra... 2008 Defender 110 60 year Edition (sold unfortunately)
IN the hunt for another Puma for the wifey!
2008 Kia Sorento LX ðŸ˜ 2.5crdi

9th Dec 2011 11:43am

Gil9713

Member Since: 11 Sep 2011
Location: Colchester
Posts: 94

As its a Ford Puma diesel engine surely they guzzle anything.
The Army have a few and don't seem to have any issues and you can't get much cheaper and

fuel that that!!
Interesting views on the engine noises lifting on different fuels used, be interesting to see what those more qualified on here think about that?

11th Dec 2011 1:43pm

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