Guest chiefvinso Posted June 22, 2005 Share Posted June 22, 2005 I know you guys have probably already discussed this but its hard work looking through old threads - I'm just lazy I suppose! Anyway, soon I will be getting into my soop and was wondering if people had had their cars remapped to run on optimax or left it stock and run optimax wihtout any problems? I will use optimax and probably also nf octance booster as I did the MR2 Turbo but as the engine is 1 litre bigger and an extra blower I just want to make sure that I am not sending the engine to an early grave. Link to comment Share on other sites More sharing options...
Alex Posted June 22, 2005 Share Posted June 22, 2005 Should be fine...all the others are. Just make sure your ECU is stock and doesn't have any badges saying MINES or TOM'S on it...as they will be modified Stock ECU's. If you have one of them it still shouldn't be a problem (mine wasnt) but you might want to check it on a dyno (to get the AFR's checked). Octane boosters are a waste of money. Unless you are using something like a 10% mix of toluene (do a search on it) per tank. (that's 7Litres of Tol per tank not one pissy bottle ) Link to comment Share on other sites More sharing options...
Maxx Posted June 22, 2005 Share Posted June 22, 2005 There loads of info here: Optimax threads By the way you don't need to remap for Optimax. Link to comment Share on other sites More sharing options...
CJ Posted June 22, 2005 Share Posted June 22, 2005 Normally, I would be "too lazy" to bother responding but seeing as it is sunny, I am feeling more benevolent than normal. OK, I am assuming that you have a standard ecu so therefore you cannot remap it. I would also point out that putting any octane booster in is a complete waste of time as the "point" increase they state are just that 0.1 of a rating - chocolate fireguard springs to mind. Your best bet is to run Optimax (or the Tesco 99 ron if it is available to you) and let the ecu learn itself. Last bit of advice - if you are going to be lazy and cant be asked to do a search, then keep that to yourself as you will find others will be just as lazy and wont respond. Link to comment Share on other sites More sharing options...
Guest chiefvinso Posted June 22, 2005 Share Posted June 22, 2005 Thanks, but I should have expanded on the lazy part. I did do a search and a load of stuff came back. After browsing for a while and not really finding a complete answer I thought I would start from scratch - sorry for cheesing any of you off, but I am new!! lol So many people say that octance boosters are not good and I have heard others say the opposite. I have been using NF black which is supposed to raise by 6 ron. I know the ECu is going to be standard so I shall just run on optimax, wasnt aware that tesco had a 99 out - any good? Link to comment Share on other sites More sharing options...
mikeyb10supra Posted June 22, 2005 Share Posted June 22, 2005 dont worry about octane booster if your pretty much standard its a waste of time for not much difference......I use Tesco stuff....changed from Optimax and I find it better.....better economy and performance Link to comment Share on other sites More sharing options...
Clarkey Posted June 22, 2005 Share Posted June 22, 2005 the Tesco 99 ron if it is available to youColin - where in Oxfordshire is this 99 stuff available ? And my car goes into Phoenix for it's single conversion on the 1st Aug!!! Can't wait!!!!! Link to comment Share on other sites More sharing options...
CJ Posted June 22, 2005 Share Posted June 22, 2005 Colin - where in Oxfordshire is this 99 stuff available ? It isnt Link to comment Share on other sites More sharing options...
mini-e Posted June 22, 2005 Share Posted June 22, 2005 Should be fine...all the others are. Just make sure your ECU is stock and doesn't have any badges saying MINES or TOM'S on it...as they will be modified Stock ECU's. If you have one of them it still shouldn't be a problem (mine wasnt) but you might want to check it on a dyno (to get the AFR's checked). Octane boosters are a waste of money. Unless you are using something like a 10% mix of toluene (do a search on it) per tank. (that's 7Litres of Tol per tank not one pissy bottle ) Alot of you guys on this forum seem to think octane booster is Sh1t, and its starting to get me worried. I live in ireland where you can only get 95ron pertol, and im collecting my TT supra tomorow..... What the F**k am i goin to run it on??? On a different note, at a recent dyno test, iv seen an intega type-r run 206bhp, then awhile later with some octane booster and it ran 210bhp, suely theres some good in it. Iv heard good things about millers booster which i was thinkin of tryin out. Unless anyone has a better idea? Link to comment Share on other sites More sharing options...
Guest chiefvinso Posted June 22, 2005 Share Posted June 22, 2005 I used octane booster, nf black which is supposed to raise by 6 ron to a certain amount of litres. Personally I noticed on my modified mr2 turbo that it made a difference than just optimax. One concern is what I read elsewhere in the forum is that optimax could be as low as 95 ron which is why its not shown on the pump its rating. Anyone here from shell??? Link to comment Share on other sites More sharing options...
mikeyb10supra Posted June 22, 2005 Share Posted June 22, 2005 thats more than the companys worth to do that.....that would be false advertising and they coul be liable for it so I think it would be what they say it is, or they are being very quite about some small print Link to comment Share on other sites More sharing options...
Guest chiefvinso Posted June 22, 2005 Share Posted June 22, 2005 I've written to shell asking them the question as I'm baffled now. Will let you know of my findings Link to comment Share on other sites More sharing options...
Alex Posted June 22, 2005 Share Posted June 22, 2005 It is advertised as not less than 98octane....therefore though it's not always 98 dead, sometimes it's better! Link to comment Share on other sites More sharing options...
Guest chiefvinso Posted June 27, 2005 Share Posted June 27, 2005 I have had a response from shell so now I know for defo - the only problem is that the shell garages I have been too dont show the BS no's either! Heres shells reponse: Dear Mr Jones, Thank you for your email which has been passed to me for response. The Octane rating for Shell Optimax is 98. Shell Optimax is a highly refined unleaded petrol which has some of the heavier constituents of standard petrol removed. This means that it burns more cleanly in your engine and actually helps dissolve the carbonaceous deposits left in the inlet valves and washes them, with the fuel, into the combustion chamber where they are burned and removed. Regarding the octane rating which is not stated on the pumps, there is no legal requirement, however the British standards are displayed on the pumps. BSEN228 is for premium unleaded at 95 Octane and BS7800 is for Super unleaded at 97 Octane and above. Kind Regards Christina Christina Parry Customer Relations - Retail Shell U.K. Oil Products Limited Rowlandsway House, Rowlandsway, Manchester M22 5SB, United Kingdom Tel: +44 0161 947 5864 Fax: +44 161 499 4903 Email: Internet: http://www.shell.com/uk Link to comment Share on other sites More sharing options...
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