JohnA Posted June 5, 2005 Share Posted June 5, 2005 Just did around 250 miles on fresh 99RON juice from Tesco in Thurrock. Felt normal on the way to the Pod, but coming back it was different. Off boost, on-boost and in between. Pulls better, my gut feeling is that the ECU increased advance and it FEELS GOOD Quote Link to comment Share on other sites More sharing options...
Bobbeh Posted June 5, 2005 Share Posted June 5, 2005 Sounds good I've still not used this stuff yet, stuck with Optimax. I want to try it. Quote Link to comment Share on other sites More sharing options...
imi Posted June 5, 2005 Share Posted June 5, 2005 I cant say that it makes a drammatic difference, however 6p cheaper than optimax per ltr and definetely NO DEGRADATION in performance, but the assurance that it is 99RON which is as close as we can get today to 100RON from the pumps. Quote Link to comment Share on other sites More sharing options...
JohnA Posted June 5, 2005 Author Share Posted June 5, 2005 You can't compare optimax to this mate. This has the British Standards label, 99RON optimax has nothing, it only has to be 95RON. I was quite surprised by the extent of the difference. (filled with BP SUL before). I think that it needs at least a couple of hot restarts with some miles in between for the ECU to adapt to the new octane levels. I'm a happy bunny, car runs smoothly and pulls stronger than before. Quote Link to comment Share on other sites More sharing options...
peter richards Posted June 5, 2005 Share Posted June 5, 2005 how much a litre was it john Quote Link to comment Share on other sites More sharing options...
JohnA Posted June 5, 2005 Author Share Posted June 5, 2005 86-87p max maybe less If you spend £50 in shopping then you get another 5p off per litre, not bad for supermarket fuel, eh? Quote Link to comment Share on other sites More sharing options...
Nic Posted June 5, 2005 Share Posted June 5, 2005 Might be worth resetting the ECU once you have a tank full of the 99ron, this will clear all saved info in the ECU and force it to adjust to new fuel. Quote Link to comment Share on other sites More sharing options...
Branners Posted June 5, 2005 Share Posted June 5, 2005 On an import I generally found it took just over a tank full of fuel for the ECU to relearn. With the UK spec having a larger tank it should happen within 1 tankful. Reset the ECU certain seemed to help on my old import. JB Quote Link to comment Share on other sites More sharing options...
peter richards Posted June 5, 2005 Share Posted June 5, 2005 shit , i just paid 83.9 for sainsburys normal unleaded :thumbdown Quote Link to comment Share on other sites More sharing options...
JohnA Posted June 5, 2005 Author Share Posted June 5, 2005 Might be worth resetting the ECU once you have a tank full of the 99ron, this will clear all saved info in the ECU and force it to adjust to new fuel. It will still take a hundred miles (at least) to reach a decent level though, running suboptimally on the rich side in the meantime. As JB says, it might even need a whole tankful, so maybe it's still got some way to go (whey heeeey! ) Either way, the extra-RON effect won't be immediate. Quote Link to comment Share on other sites More sharing options...
imi Posted June 5, 2005 Share Posted June 5, 2005 You can't compare optimax to this mate. This has the British Standards label, 99RON optimax has nothing, it only has to be 95RON. I was quite surprised by the extent of the difference. (filled with BP SUL before). I think that it needs at least a couple of hot restarts with some miles in between for the ECU to adapt to the new octane levels. I'm a happy bunny, car runs smoothly and pulls stronger than before. ive been using it for 2 months now.... and yes, the ECU has been RESET. no drammatic difference, but a happy camper nevertheless Quote Link to comment Share on other sites More sharing options...
SkyJawa Posted June 5, 2005 Share Posted June 5, 2005 Just paid 84.9 for it today at Sandhurst! Plus 5p per litre off for spending over 50 quid in Tesco's. 99 Ron SUL for 79.9 :D:D:D:D:D:D:D Quote Link to comment Share on other sites More sharing options...
Kopite Posted June 5, 2005 Share Posted June 5, 2005 feckin southerners! get it up north!! Quote Link to comment Share on other sites More sharing options...
Duffers Posted June 5, 2005 Share Posted June 5, 2005 feckin southerners! get it up north!! Was just gonna say that! Is there any news of 99RON heading up North yet? Any websites for updates? Paul Quote Link to comment Share on other sites More sharing options...
MKIVDreamer Posted June 5, 2005 Share Posted June 5, 2005 Does anyone know if this is just the "Tesco Extra" places, or all tescos with a petrol station? I'm gonna check a non-extra one out in Warfield tomorrow... I'll report my findings... Quote Link to comment Share on other sites More sharing options...
SkyJawa Posted June 5, 2005 Share Posted June 5, 2005 Only certain trial Tesco's - if its successful it will go nationwide! I'm doing my bit guys! Quote Link to comment Share on other sites More sharing options...
imi Posted June 5, 2005 Share Posted June 5, 2005 Spread the word....... Wonder whether you can register your interest @ tesco garages that are NOT participating in the pilot? Quote Link to comment Share on other sites More sharing options...
JohnA Posted June 6, 2005 Author Share Posted June 6, 2005 Yes guys, please use those pumps. Go out of your way if you can ---- I can't imagine myself filling up anywhere else TBH If there is not enough interest they may pull the plug on the project and we'd be left with crappy supermarket 95 junk (at least at Tesco it's labelled as 95RON, unlike Shell's shenanigans) During the few times I've been there, I haven't seen anyone else using the 99RON pumps. Quote Link to comment Share on other sites More sharing options...
tbourner Posted June 6, 2005 Share Posted June 6, 2005 Is there a list of the places that have it? Quote Link to comment Share on other sites More sharing options...
JohnA Posted June 6, 2005 Author Share Posted June 6, 2005 Yes, it's in another similar thread mate Quote Link to comment Share on other sites More sharing options...
veilsideTT Posted June 8, 2005 Share Posted June 8, 2005 an email from tesco today, 99 Octane Super unleaded petrol unique to Tesco, this grade is now available in 12 stores around the South East. It has a very high octane content and will benefit high performance vehicles. Participating Stores Bedford 1 Cheshunt Extra Crawley Hazelwick Gallions Reach Extra Gillingham Lakeside Ramsgate Manston Salisbury 2 Sandhurst Sevenoaks Riverhead Stevenage Winchester Doesnt help me in the midlands though Quote Link to comment Share on other sites More sharing options...
supRo Posted June 9, 2005 Share Posted June 9, 2005 Stuff about supermaket fuel not having decent additives for protection - is that true? Quote Link to comment Share on other sites More sharing options...
Jake Posted June 9, 2005 Share Posted June 9, 2005 What stuff is that? I've never heard that before. It's not like the supermarkets refine petrol themselves or even have someone refine it for them, surely they just buy it in from Esso, Texaco or whoever. Quote Link to comment Share on other sites More sharing options...
supRo Posted June 9, 2005 Share Posted June 9, 2005 probably bollox, some people say they cut down on essential additives to make the price cheaper? Quote Link to comment Share on other sites More sharing options...
JohnA Posted June 10, 2005 Author Share Posted June 10, 2005 There may be some truth in that, who knows. At least for some supermarkets (others get fuel straight from the very same trucks as 'normal' branded garages, depending on demand fluctuations) The one time I lost an engine recently was at only 1 bar (exact same setup had seen 30psi peaks 3-4 months before!) The only difference I could think of was fuel, I had just filled it up at Tesco (std crap), because I had a 5p off voucher and was in cheapskate mode. Didn't really think it would make a difference using it on commuting at 1 bar max. A puff of smoke said otherwise. It was even below the point of Water Injection activation, totally took me by surprise. I'll always wonder whether the Tesco fuel was the culprit... Quote Link to comment Share on other sites More sharing options...
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