HDAV Posted November 11, 2012 Report Share Posted November 11, 2012 Tesco- rattly/rough gutless runs out fast Morrisons/asda - nice allover average BP- very quite and smooth but a bit gutless Interesting I find morrisons worst tesco ok esso ok total ok asda ok sainsbury ok BP ok shell ok regularly use esso and tesco (esso supply tesco?) the others on occasional refills it was £138.9 for derv at tesco today 3p less than sainsbury on Friday Quote Link to comment Share on other sites More sharing options...
activeviii Posted November 12, 2012 Report Share Posted November 12, 2012 £137.7 at asda. so 20 litres of that and 20 litres of veg oil. I did type more but ,my enter button is not working on here so reads bad. basically I was saying that bio oil is added to supermarket fuel, low amount will do no harm but it does draw moister out of the air and slug in the bottom of your tank can be lifted and sent to your fuel filter. a change of filter should sort this out. older fuel pumps can have problems with seals as bio fuel eats into them. had all mine changed on the pajero and no issues yet. Quote Link to comment Share on other sites More sharing options...
al4x Posted November 12, 2012 Report Share Posted November 12, 2012 perhaps its to do with the tanks not being cleaned out, i remember for a fact when i lived back in S-O-T a whole string of cars got shafted on a forecourt because the holding tanks weren't cleaned out or were contaminated somehow. That was from the garage itself not a mate that knows a mate. there was a problem years back well reported and compensation paid its far from a rgular occurrence though http://www.thetelegraphandargus.co.uk/news/1239585.0/ Quote Link to comment Share on other sites More sharing options...
Pastiebap Posted November 12, 2012 Report Share Posted November 12, 2012 I was told by my regular mechanic that tesco diesel was as bad as you could get without buying laundered fuel. Quote Link to comment Share on other sites More sharing options...
gixer1 Posted November 12, 2012 Report Share Posted November 12, 2012 (edited) I was told by my regular mechanic that tesco diesel was as bad as you could get without buying laundered fuel. Ask him where he is getting his information from and see what he says - bet its the "well we had a guy in the workshop that knows a guy from a shop who's assistant is married to the cousin of a man that had a dog who was once walked by a girl who slept with mr tesco" Seriously though - ask him where he gets the info and ask him what makes the fuel poorer quality than any other refined diesel? Regards, Gixer Edited November 12, 2012 by gixer1 Quote Link to comment Share on other sites More sharing options...
gixer11 Posted November 12, 2012 Report Share Posted November 12, 2012 A Gixer has to use high octane fuel as recommended by Suzuki. Super markets don't sell it therefore no warranty. Super market diesel has no addatives and as all diesel is now all low sulphur has very little lubrication for the fuel pumps and injectors. During a recent course i attended the tutor recommended a small shot of two stroke oil every tank fill. Quote Link to comment Share on other sites More sharing options...
al4x Posted November 12, 2012 Report Share Posted November 12, 2012 so supermarkets don't sell super unleaded? must be a northern thing as they all do down here Quote Link to comment Share on other sites More sharing options...
guest1957 Posted November 12, 2012 Report Share Posted November 12, 2012 A Gixer has to use high octane fuel as recommended by Suzuki. Super markets don't sell it therefore no warranty. Super market diesel has no addatives and as all diesel is now all low sulphur has very little lubrication for the fuel pumps and injectors. During a recent course i attended the tutor recommended a small shot of two stroke oil every tank fill. Tesco sells 99 Octane which is about as high as you can get on any forecourt in the country (some places have done 100), so I doubt this is the case. Also, 95 RON standard UK unleaded is higher than most countries. Quote Link to comment Share on other sites More sharing options...
gemini52 Posted November 12, 2012 Report Share Posted November 12, 2012 i buy from wherever is near when the orange light comes on. supermarkets or other garages, never noticed any difference in the cars i have had (95 fiesta, 03 focus, 99 astra...all petrol) Still waiting for payment for the o rings you received from me,then again its no surprise people like you have no morals. Quote Link to comment Share on other sites More sharing options...
gixer1 Posted November 12, 2012 Report Share Posted November 12, 2012 A Gixer has to use high octane fuel as recommended by Suzuki. Super markets don't sell it therefore no warranty. Super market diesel has no addatives and as all diesel is now all low sulphur has very little lubrication for the fuel pumps and injectors. During a recent course i attended the tutor recommended a small shot of two stroke oil every tank fill. Erm...no - having owned numerous GSXR's (the last one had a set of Yosh TRC's and multi-remap) I can say that's tosh - Suzuki want you to run over 90 Ron (if memory serves me) which is pretty much all petrol in this country. I have run all my GSXR's on standard unleaded... Regards, Gixer Quote Link to comment Share on other sites More sharing options...
Pastiebap Posted November 12, 2012 Report Share Posted November 12, 2012 Ask him where he is getting his information from and see what he says - bet its the "well we had a guy in the workshop that knows a guy from a shop who's assistant is married to the cousin of a man that had a dog who was once walked by a girl who slept with mr tesco" Seriously though - ask him where he gets the info and ask him what makes the fuel poorer quality than any other refined diesel? Regards, Gixer Apparently it was someone from HMRC who works as a fuel dipper (my mechanics day job is a vehicle tester for DVA). Next time i'm getting work done i'll asks him for an explanation as to why. But to be fair he's not ther first person to tell me that. I was advised by an MGR dealer to use tesco Derv sparingly as there is a hig vegetable oil content (whatever the means). Quote Link to comment Share on other sites More sharing options...
Hamster Posted November 12, 2012 Report Share Posted November 12, 2012 You can't beat Tesco for organic chicken but Morrisons have better varieties for bread. Quote Link to comment Share on other sites More sharing options...
HDAV Posted November 12, 2012 Report Share Posted November 12, 2012 I was advised by an MGR dealer to use tesco Derv sparingly as there is a hig vegetable oil content (whatever the means). not more than 7%........ As per BS standard.......... Tesco momentum 99 is wicked super......... Quote Link to comment Share on other sites More sharing options...
Cannon Posted November 12, 2012 Report Share Posted November 12, 2012 Tesco fuel - 37 mpg Sainsbury's fuel - 38 mpg BP regular diesel - 42-43mpg BP ultimate - 47-48mpg These are the results of the past 2 years that I have owned my car. Every time I filled up I would reset the mileage and work out my average mpg. I stopped using supermarket fuel when I discovered a large chunk of hair in my in tank fuel filter (thanks sainsburys), plus the terrible mpg compared to what I got when using BP fuel. Haven't had a problem since switching to BP. Quote Link to comment Share on other sites More sharing options...
Pastiebap Posted November 12, 2012 Report Share Posted November 12, 2012 not more than 7%........ As per BS standard.......... Tesco momentum 99 is wicked super......... There you go, shows how easy it is for garages to spin the odd yarn. Quote Link to comment Share on other sites More sharing options...
shaun4860 Posted November 13, 2012 Report Share Posted November 13, 2012 (edited) Tesco fuel - 37 mpg Sainsbury's fuel - 38 mpg BP regular diesel - 42-43mpg BP ultimate - 47-48mpg These are the results of the past 2 years that I have owned my car. Every time I filled up I would reset the mileage and work out my average mpg. I stopped using supermarket fuel when I discovered a large chunk of hair in my in tank fuel filter (thanks sainsburys), plus the terrible mpg compared to what I got when using BP fuel. Haven't had a problem since switching to BP. You cant go off trip computers, they lie. PW charity shoot at risley, I brimmed my car (2.0 TDI Seat Altea), reset trip computer. drove down there, checked computer, just over 45mpg, me not believing it, went and brimmed it again to see what I had actually used, (volume not price) came in at just under 55mpg which is what I would have expected, maybe a little more but happy with that, Never trusted them since, The only true way to see mpg figures is to brim - run - brim and work out what you used for the mileage Edited November 13, 2012 by shaun4860 Quote Link to comment Share on other sites More sharing options...
Del T Posted November 13, 2012 Report Share Posted November 13, 2012 Think I'll listen to a diesel pump specialist whos been repairing pumps for 30years and steer clear of supermarket diesel as it wrecks certain make pumps. And on my own car i'll listen to my ecu mapper who has mapped wrc rally cars,so i'll stick to using high octane petrol. Quote Link to comment Share on other sites More sharing options...
gixer1 Posted November 13, 2012 Report Share Posted November 13, 2012 (edited) Think I'll listen to a diesel pump specialist whos been repairing pumps for 30years and steer clear of supermarket diesel as it wrecks certain make pumps. And on my own car i'll listen to my ecu mapper who has mapped wrc rally cars,so i'll stick to using high octane petrol. Listen to who you like mate, I have literally seen the process from reservoir to pump, so can tell you the WRC mapper may tell you how the engine is behaving but to be honest if he is any good he should be able to map the ecu to be as efficient as possible with any given fuel within the engine range - thats the whole point in a remap. Regards, Gixer Edited November 13, 2012 by gixer1 Quote Link to comment Share on other sites More sharing options...
jason kaye Posted November 13, 2012 Report Share Posted November 13, 2012 I know nothing about bikes but unless the manual states don't use tesco petrol I doubt they have a leg to stand on! You're are correct mate ,I've got a gsxr 1000 k6 and it say's on a sticker on the tank " only use at least 95 ron unleaded" same in the manual 95ron,don't say any thing about super market fuel. Quote Link to comment Share on other sites More sharing options...
jason kaye Posted November 13, 2012 Report Share Posted November 13, 2012 A Gixer has to use high octane fuel as recommended by Suzuki. Super markets don't sell it therefore no warranty. Super market diesel has no addatives and as all diesel is now all low sulphur has very little lubrication for the fuel pumps and injectors. During a recent course i attended the tutor recommended a small shot of two stroke oil every tank fill. That's a load of ******** mate,I've owned no less than 11 Gsxrs and have never read in any handbook that they have to fed high octane fuel all it states is fuel to be used must be at least 95ron and all fuel(petrol) you can buy in the uk is 95ron or better Vpower etc is 97ron. Quote Link to comment Share on other sites More sharing options...
Euilleam Posted November 13, 2012 Report Share Posted November 13, 2012 How about Live Lizards in your salad from Morrisons? Reference Scottish Daily Mail Tuesday Nov 13th page 28 Labelled as Wild Rocket Salad from Italy, and when the customer went home he went to make a sandwich and spotted the live lizard amongst the leaves, which he had purchased from Morrisons in Derbyshire. Certainly more than he could stomach! Now Frogs legs are one thing but med Lizards on your sandwich have to be taking the bacon! Quote Link to comment Share on other sites More sharing options...
Dekers Posted November 13, 2012 Report Share Posted November 13, 2012 This is a gem! Quote Link to comment Share on other sites More sharing options...
timps Posted November 13, 2012 Report Share Posted November 13, 2012 (edited) I wonder if all these mechanical experts that say it’s rubbish have ever tested the fuel that they so readily condemn. Their views are only anecdotal without tests on the fuel or proper statistics and seeing as more people fill up at supermarkets than don’t then the chances of a regular person having used it at some point make the statistics slightly biased anyway. Mechanics question “do you EVER use supermarket fuel”..... answer “yes”.... Reply “ there’s your problem then” ... If he asked do you ever watch TV he could argue that was the problem as well as everyone who had a knackered injector pump at his garage also watched TV at some point. You would need x amount of people who never use a supermarket vs x amount who only use them, with the same car, same driving habits and compare problems and even that has flaws statistically. Edited November 13, 2012 by timps Quote Link to comment Share on other sites More sharing options...
Del T Posted November 13, 2012 Report Share Posted November 13, 2012 (edited) the WRC mapper may tell you how the engine is behaving but to be honest if he is any good he should be able to map the ecu to be as efficient as possible with any given fuel within the engine range - thats the whole point in a remap. Regards, Gixer Mine is mapped for power using the best fuel you can get at the pump.It will get high knock counts running 95 octane and 1.8bar boost @ 380bhp. Edited November 13, 2012 by Del T Quote Link to comment Share on other sites More sharing options...
gixer1 Posted November 13, 2012 Report Share Posted November 13, 2012 Mine is mapped for power using the best fuel you can get at the pump.It will get high knock counts running 95 octane and 1.8bar boost @ 380bhp. You messed up then - for the simple reason you may struggle to get a consistent blend regardless of where you go - they will all be within a set range but still inconsistent in the scheme of precise fuel mapping - this is why high octane race fuel is used in most high performance cars/bikes (avgas etc) as it does not rely on detergent levels or substitute additives. Regards, Gixer Quote Link to comment Share on other sites More sharing options...
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