twinxrs Member 202 Member For: 21y 1m 27d Location: Sydney Posted 08/01/06 05:45 AM Share Posted 08/01/06 05:45 AM Hi allI'm currently running my car on 98 octane fuels as that what it's been _tuned_ for (it's a Phase II) and it's going great !But now I've seen/heard some advertisements for the new Shell Optimax Extreme fuel that's classified as 100 octane through the addition of some ethanol !So, what's the deal ? Has anyone tried this with their T yet ? Would a vehicle equipped with an aftermarket tune be able to use this "as is" or would it be best to get it back to an expert for a re-tune on the new fuel ? Would it work at all ? Any insight would be appreciated !Thanks,Scott Link to comment Share on other sites More sharing options...
jEtONiT Donating Members 1,817 Member For: 20y 10m 12d Gender: Not Telling Location: next door.. Posted 08/01/06 05:57 AM Share Posted 08/01/06 05:57 AM do a search.. theres a thread called "optimax extreme" or something.. Link to comment Share on other sites More sharing options...
PozzE Member 133 Member For: 18y 9m 17d Posted 08/01/06 05:58 AM Share Posted 08/01/06 05:58 AM Well its still Extremely uncomon with Shell only listing 7 places in Melb that have it... ( http://www.shell.com/static/au-en/download...ite_extreme.pdf )Its more expensive again than Optimax 98 which is Extremely silly seeing Ethanol is cheaper than oil... (although 4 cents price difference over 50litres is still only $2 so who cares)In theory it still should make the T go better but will it be Extremely noticeable?? Link to comment Share on other sites More sharing options...
Blonk Iconoclast Donating Members 4,330 Member For: 19y 11m 23d Gender: Male Location: CH Posted 08/01/06 08:10 AM Share Posted 08/01/06 08:10 AM Running my second tank of extreme right now...All seems fine.. Air temps to high to tell if its making much difference. Link to comment Share on other sites More sharing options...
turtle33 Member 578 Member For: 19y 6m 27d Gender: Male Location: brisbane Posted 08/01/06 12:40 PM Share Posted 08/01/06 12:40 PM in my previous tune it smoothed out a lot so im quite happy. Link to comment Share on other sites More sharing options...
F6 RAPID Formerly Turbo6 Donating Members 2,332 Member For: 21y 8m 11d Location: North Brisbane Posted 08/01/06 11:32 PM Share Posted 08/01/06 11:32 PM I no longer am adding Octane booster to BP Ultimate - have changed to Extreme and no pinging, so all good for me. I believe Craig has the same report. Link to comment Share on other sites More sharing options...
Geeseman Donating Members 1,805 Member For: 20y 10m 23d Location: Sydney Posted 08/01/06 11:56 PM Share Posted 08/01/06 11:56 PM Hi Scott,the higher oxygen level of the fuel (due to the ethanol) will see it make more power without an engine retune, so you will be fine to use it as is.I've been using it for a little while and can report good results. Try it out and see how you go! Link to comment Share on other sites More sharing options...
Falchoon I see red Member 5,758 Member For: 21y 9m 2d Location: nowhere in particular Posted 09/01/06 08:07 AM Share Posted 09/01/06 08:07 AM I recall reading on LS1 Forum that a concern with Ethanol blend fuels is that the Ethanol attracts water which in turn can corrode fuel fittings in your car. Other people seem to give conflicting stories of performance gains. Here's a link to a website with some more info on Ethanol (caveat emptor - I read it on the internet so it must be true! ) Link to comment Share on other sites More sharing options...
mickq Member 740 Member For: 21y 4m 28d Posted 10/01/06 11:22 AM Share Posted 10/01/06 11:22 AM Works really well in the T. Definitely a noticeable improvement. Much more smooth right through the rev range - you will noitce that very quickly. Slightly better low end power in terms of how it comes on.Read the thread at Fordxr6turbo.com where we discussed it a month or so ago...I wrote lots more detail there. Search on optimax extreme should find it pretty quick. PS I found I got about 10-15km less per tank, but that doesnt mean much to me as I only get 220km per tank on Optimax/Mobil8000 anyway! Link to comment Share on other sites More sharing options...
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