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post #6 of 24 (permalink) Old 10th September 2015
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Re: premium diesel

Originally Posted by Dancingdad View Post
But we are not talking hi octane ratings, just deseasal in a humble DCI.

I'm even more cynical about named brands being different then super fuels BTW, I'd never bet that the Shell tanker doesn't fill up from the same storage tank as the Asda one.
But I think I did say its also to do with the additives individual companies put in their fuel..garage fuel can influence MPG and performance and that goes for oil burners I believe..this might explain it better than I can..
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post #7 of 24 (permalink) Old 10th September 2015
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Re: premium diesel

Originally Posted by Phil48 View Post
High octain give more bangs for yer buck..and its necessary if you drive a non converted vintage car DD ..but for a clio it shouldn't need it ..the one thing I never do if I can avoid it is use supermarket fuels..I always use a petrol station near me the fuel is more refined and they use additives to keep your engine clean when super market fuel quite often dont..
er this was Diesal, so Octane is not relevent here. Also higher Octane goes bang more easily but contains LESS energy. SO buying "premium" fuel is paying more for getting less
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post #8 of 24 (permalink) Old 11th September 2015 Thread Starter
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Re: premium diesel

Phil48's link to simplemotoring could have been written by my fuel trader friend.One thing i've only just remembered was his belief that supermarkets cut their costs to the bone,one of the results being that the maintenance of tanks filters etc of the site's equipment may suffer.

I didn't use much of the morris's additive so it didn't get a fair trial but from the 'ingredients' list and warnings on the bottle I'd guess that it contains a biocide to prevent bugs growing in the fuel.
'Honing oil '--athin oil used for sharpening chisels etc-- was always described on the container as antibacterial honing oil . i always thought it was to reduce the chance a cut getting infected till somebody told me that there are some bugs that can live in oil tanks.
Shell have (or had) a research facility in cheshire and they used to donate old aluminium pistons to local schools metalworking departments. i assume that they were used to test the performance of various fuels and lubricants and they wouldn't be doing that to benefit tesco or asda.
The fact is though that after 2 tanks the tickover that often had the car and passengers shaking was improved to being as smooth as silkand thewarning light stayed off for weeks.

Sadly it's now on continuously. A maxiscan ms309 says no faults and anelm327 says via Torquethat there are no faults.The latter shows revs coolant temp accelerator position etc. so bits of it are working To be continued--but maybe in another thread.
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post #9 of 24 (permalink) Old 11th September 2015
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Re: premium diesel

Originally Posted by richard tunstal View Post
seems to be necessary to say hello in this thread to trigger some of the forum treasures.why the title?
i am just a trifle tight and used to drive miles to save 0.1p a litre so why am i of all people going to the shell V-POWER pump?
i bought the clio in feb this year and it was running beautifully for a while.then the tickover got worse n worse n worse.and driving to maximise mpg brought the little orange light on.give the car a good thrashing (as in fawlty towers) and things improved for a while. not knowing anything about diesels i thought 'sticky injector' ,got some very expensive (by my standards) morris's stuff to put in the tank and nothing changed.i must admit i wasn't very diligent but was possibly erring towards parsimony.
i described my problem to a friend in the fuel tradeand he said
1 he bought supermarket petrol regularly
2he only bought supermarket diesel if there was a very good offer on
3 he normally bought branded diesel
4his prescription for my problem was branded premium diesel. might take a couple of tanksful he said ,but have faith.
in this area shell is the most common brand and hey presto after 2 tanks no more orange light. as far as i rememberthe extra cost is similar to the cost of the additive but is much less trouble!!!
wonder if it'd free up the space bar on this geriatric keyboard??
Hi it would be interesting to know if the warning light fault was related to a fuel problem? ie injector etc
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post #10 of 24 (permalink) Old 11th September 2015
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Re: premium diesel

Hi all just to add my bit,normally don't use the car missus only goes to shop and back average fifty k a week.last week I used it and turbo was reluctant to spool up,checked the actuator very stiff,on my list to have a look.had to go to daughter's one hundred k and usually happens no fuel.asked wife where she gets fuel from engen around the corner,on my way filled it up a sasol there still reluctant to spool up way back getting better week later all back to normal, turbo spins up great.look at specks for Sa and sasol claims one tank will put engine back to good performance it definitely
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