geoffbeaumont Posted January 16, 2007 Share Posted January 16, 2007 I know quite a few people who swear blind their vehicles run better on such-and-such a big name brand of fuel. None of them work in the oil industry... It all comes out the same refineries. Quote Link to comment Share on other sites More sharing options...
LS26 Posted January 16, 2007 Share Posted January 16, 2007 Additional info on petrol engines - put some in my Honda CBR600 and the annoying buzz in the RHS footpeg at 7000rpm has gone - feels a lot smoother all through the rev range too Can't tell about the power - on these roads I never dare open it up fully - but it certainly feels better. Can't wait so get some in the 3.9 EFI. Anyone know if STP will stop tappet rattle? Roger - additives in everything from now on - Watkinson Quote Link to comment Share on other sites More sharing options...
LandyManLuke Posted January 16, 2007 Share Posted January 16, 2007 I see what you're saying, and i really wouldn't say i (or the 90) prefer fuel from one place or another, but using your logic, all the water in the world comes out of the sky, but there's some i'd drink, and some i'd rather not. I wonder how much effect storage conditions have on fuel, and whether there is any post refinery treatment/process carried out by individual suppliers. Quote Link to comment Share on other sites More sharing options...
geoffbeaumont Posted January 16, 2007 Share Posted January 16, 2007 Water in fuel certainly isn't unheard of - no idea how common it is, though. I'd guess any treatment would be done at the refinery (or possibly fuel dump), but they could put additives in some of it and not others. Many of the suppliers certainly claim to add additives. Quote Link to comment Share on other sites More sharing options...
V8 Freak Posted January 16, 2007 Share Posted January 16, 2007 Additives are merely engine cleaners... (Or anti-waxing agent as well in diesel part year - To govt. specifications) Tesco, Sainsbury etc. all use the same additives the oil companies use... Tesco used to be totally independent to get consistent additives in their fuel because they bought from 6 refineries / suppliers. But now everyone pretty much the same in terms of additive levels and constituents no need to be different. The only supermarket that used to NOT add anything was Morrisons to try and sneak a bit of extra money out of the job.... They reasoned that people weren't totally loyal to them so they would get some cleaning effect from tanks of fuel people bought elsewhere... Tesco and Sainsbury Supermarket sites turn fuel over much faster than your average Joe petrol station, generally have better equipment underground because of new sites and investment they are prepared to make etc. Water checks take place daily but contamination rarely occurs. (Guess what I used to be involved in a few years back !) Seriously peeps. You should get the same product from Supermarkets. Tesco were the first to introduce Lead free petrol, first to remove sulphur from diesel, first to introduce a high octane/low benzene fuel that some engines can benefit from etc. They generally push the boundaries and push the oil companies into action. Tesco currently in discussion with engine manufacturers about Biofuels. Currently have 5% blend in the South East and want to know what the plans are for major makers for the future to plan their action...... (Yes, Tesco have a share in a private fuel company that helps them develop specialist fuels and lead the market. When it becomes mainstream it becomes available from the majors...) http://www.greenergy.com The Shell V product should be pretty good but peeps will have to tune their engines for it and then stay on it ! (Unless you got expensive kit on board like the top end BMW's etc. that detect unspent fuel and re-tune on the fly...) Quote Link to comment Share on other sites More sharing options...
nicksmelly Posted January 16, 2007 Share Posted January 16, 2007 Well, I can only go off what I have experienced and thats my van has run on Tesco diesel for 43000 miles. If I am nowhere near a tesco with a fuel station I put Shell diesel in, and I can tell you the van performs better, runs smoother, accelerates quicker. It's not psychological, it's fact. Why would Shell, Texaco, BP or whoever invest millions in developing their fuels and asdvertising them to be better than others, only to let Tesco or Sainsbury's sell their fuels at budget prices? 2litres of coca-cola is maybe £1.28, 2litres of Tesco value cola is £0.18, they are both cola drinks... How do you know the refineries don't make different blends of fuels? What about LPG, it's all gas isn't it? Propane? Nope, its a blend and the proportions of propane and butane change between suppliers. Butane is cheaper than propane. so budget suppliers of LPG use more butane in it. They also have to change their mixes between summer and winter as butane has a higher boiling point than Propane... And finally, it was 200ml for £5. I'll go to Wilkinsons and get a bigger bottle at weekend. Smelly. And as for the statement that maybe Tesco have better equipment, maintained to a higher standard, think again, I work for the maintainers, and Tesco invest in things that make stores look pretty and attract customers, not in maintenance or capital investment unless they are forced to. How else do you think they made over £2billion profit last year. edited again as I can't contain myself... laugh, your having a joke yeah? Water checks? Bollox... The tanks are double bunded and between the inner and the outer tank is water. The water is there to detect leaks from the inner tank. If the level of the water changes an alarm inside sounds, this can be very annoying if your having a coffee in the back, so staff stick tape over the buzzer and ignore them. Theres another probe in the bund just below the surface of the water that conducts a small current, if the current doesnt flow, maybe due to fuel floating on the surface of the water the alarm sounds... hmm, but if the probes corrode, the alarm sounds... but its ignored. Now, the water in the fuel, on most forecourts the inspection covers don't fit very well, rain gets in and some tanks have 2 feet of water above them which seeps in through the flange... Right, i'll shut up now. Quote Link to comment Share on other sites More sharing options...
V8 Freak Posted January 16, 2007 Share Posted January 16, 2007 I work for Tesco and used to run their whole fuel operation..... Quote Link to comment Share on other sites More sharing options...
nicksmelly Posted January 16, 2007 Share Posted January 16, 2007 Well open your bloody eyes, go and visit some of the petrol stations and do something about it! Quote Link to comment Share on other sites More sharing options...
Paul64 Posted January 16, 2007 Author Share Posted January 16, 2007 Redex rules!!!! Quote Link to comment Share on other sites More sharing options...
V8 Freak Posted January 16, 2007 Share Posted January 16, 2007 Nick, I dunno why your van runs better on Shell diesel.... <Shrugs> Thankfully now I don't run the fuel operation.. Let off for good behaviour after getting through the fuel crisis in better shape than the majors...... Not picking a fight, just doing the same as you and sharing some of what I know. Tesco now 2nd biggest retailer of fuel in UK so have some say in what they buy and sell in the market. We make very little margin on fuel because we cannot buy it cheap. We have to buy it from the major refiners, mainly because of our size and they control the manufacture / supply. Hence, we get what they sell.... And we retail at the same prices that they do... And back on topic (Sorry Mods... Didn't mean to sky-jack the topic...) not tried Redex since I have a Mk1 Escort... Smoked out most of Dagenham back then when I used it... Quote Link to comment Share on other sites More sharing options...
FridgeFreezer Posted January 17, 2007 Share Posted January 17, 2007 My old van had BP and Total fuel cards and was noticeably better on Total diesel, by a measurable 10mph top end. There was a consensus a while back, when some had Esso cards, that vans that had Esso cards seemed to go better than those with BP. There's also a popular theory that LR TDi's don't like supermarket fuel as it contains less sulphur. OK fuel is all made to certain standards but the additives used can be tweaked, just like some pubs water down their coke to save money. Happily my local Esso is close to an Asda so they have to keep their prices low to get trade. The Shell V product should be pretty good but peeps will have to tune their engines for it and then stay on it ! wink.gif (Unless you got expensive kit on board like the top end BMW's etc. that detect unspent fuel and re-tune on the fly...) Top end? Pretty much anything made since the 90's will have closed-loop EFI that tunes the mixture on the fly, and the majority of stuff in the last 10 years will have dizzyless ignition and things like knock sensors, which are what really help get the best out of a higher octane fuel as it's the timing advance not the mixture that makes the difference. Roll on ion-sensing ignition on MS-II I say B) Quote Link to comment Share on other sites More sharing options...
CosZuki Posted July 21, 2007 Share Posted July 21, 2007 when i worked in a car stuff store, we once had a customer return after buying a bottle of redex large in size. to complain he had pink smoke from the back of his car. when asked how much he put in, he replied all of it!! but yes i canjoin this lets praise redex thread having had similar results myself Quote Link to comment Share on other sites More sharing options...
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