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Old 21st October 2020, 18:14   #11
bl52krz
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Quote:
Originally Posted by steve-45 View Post
And here's me worrying that I have now hit 70,000 miles !
Nearly run in now then.
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Old 22nd October 2020, 06:15   #12
coab
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Some cars benefit more from premium fuel and others dont. My Berlingo van does have a little more go using premium fuel but you only notice it if you drive like me and try and use the rev range. Premium fuel is cleaner and you do get more to the gallon but it is more expensive to you could say it evens itself out.
If you go on regular long journeys and get the car hot and give it a blast so to speak supermarket fuels are fine. My Mrs 307 petrol runs better on Sainsburys fuel than Tesco for some bizarre reason and it is noticeable.
All down to the individual and what engine they have etc.
My Golf running at 298 Bhp uses a mixture of the two and in honesty there isnt a great deal of difference running around etc but it does pull slightly better if you give it some stick!
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Old 22nd October 2020, 07:36   #13
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Going on the responses so far, opinion is very much divided.
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Old 22nd October 2020, 08:43   #14
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Just thinking aloud....

I wonder if higher mileage/usage cars have so much diesel going through their fuel system that it's lubricating and cleaning itself as it goes.

Conversely, low usage cars have comparatively little "lubricating and cleaning" so they benefit from the diesel with more additives?

Similarly we talk about doing an "Italian tune up" and there's loads of anecdotal evidence that this helps to "flush through" the injectors.

I have nothing concrete to base this on, it's just a thought to see what others can add to our knowledge and understanding.
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Old 22nd October 2020, 20:48   #15
bl52krz
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]I really am a diesel car driver, but now own a 2.5 KV6 Connie. In both cars I have tried the dearer fuel. To be honest.............I don’t find any difference.When I next go on a long distance run, I will put the dearer fuel in it, the KV6, and see if I get any more mileage from it. I will not be holding my breath. Some people, don’t ask me how I know, put the dearer stuff in and drive more sedately than they normally do, and mistakenly think because they have got slightly better mpg the dearer fuel is better.[/QUOTE]
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Old 23rd October 2020, 17:57   #16
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I nearly always use a branded fuel and millers diesel power ecomax. The diesel "rattle " is definitely quieter with it in.

The main reason I use it though is for lubrication of the pump and workings. I know diesel is an oil of sorts but, it was explained to me that these low sulphur fuels are "drier " than the fuels of just a few years ago.
A few years ago our 12 month old VW up, wouldn't start.
I phoned my local garage where I have been going for years, he said that he was pretty sure he knew what it was. He turned up and tapped the fuel pump a few times and hey presto it started. He told me about the low sulphur fuels causing problems with fuel pumps sticking, far more common than you would think apparently. Since then the 75 gets the millers, and the petrol car gets the petrol equivalent once a month.
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Old 23rd October 2020, 19:02   #17
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Mike_Trident, Interesting post. Do you use standard or premium diesel?

I am new to diesel car ownership and this is the first I have heard of Miller Diesel Power Ecomax. Sounds well worth a try.

Last edited by Annfield-East; 24th October 2020 at 06:16.. Reason: Additional paragraphs.
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Old 24th October 2020, 07:55   #18
Mike Noc
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Modern diesel has a higher percentage of biodiesel added, and that provides better lubricity than straight dinodiesel.
I've always used the cheapest derv I could find, nothing on the HP fuel side has ever been touched, and the mileage is now over 408k. The odd bottle of Forte injector cleaner has been added over the years - a total of 3 to date.












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Old 24th October 2020, 08:08   #19
Rev Jules
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Quote:
Originally Posted by bl52krz View Post
]i really am a diesel car driver, but now own a 2.5 kv6 connie. In both cars i have tried the dearer fuel. To be honest.............i don’t find any difference.when i next go on a long distance run, i will put the dearer fuel in it, the kv6, and see if i get any more mileage from it. I will not be holding my breath. Some people, don’t ask me how i know, put the dearer stuff in and drive more sedately than they normally do, and mistakenly think because they have got slightly better mpg the dearer fuel is better.
[/quote]

you can say that again??
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Old 24th October 2020, 09:03   #20
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Tesco diesel suits me fine. I've run all my diesel cars on it for many years. Have tried the odd fill of shell 'taste the difference' expensive fuel and used millers diesel treatment occasionally not noticed the slightest difference.
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