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i tried Optimax Extreme, and it "seems" to make a slight difference in power, but more of a difference in economy, not much, but enough to notice. Not enough to justify the price difference though. My car uses a JDM engine, but was tuned to Mobil 8000. Maybe a retune to Extreme 100 might make more of a difference.
yeh same bro my mecch said to use it cause my eng is JDM as well..and over there supposdly high octane..when i do my tuning of the ecu ill tune it extreme..but still want to find out if there is any cons about it
good work to efioz. Yes I have tried the vortex...but the fuel economy is not as good as optimax. The oct100 perhaps is nosier for "bolt on" modifications or after market ecu like mine. Some cars has more restriction on how far the ecu will ajust the fuel ratio/ignition timming. Generally speaking the more smoother means a more ignition timming retard.
I even tried on mercedez E200 with the octact100, and it seems sharper and more response. And that the current 2005 september model. I do not hold any biased view but just for mine own modified LS and E200 Benze.
2nd tank fillup today and I can feel more torque in the lower rev range (under 3000rpm) which the prelude lacks. Its not HUGE, but it is noticeable :)
Don't know if I should be using the stuff, but the car seems pretty smooth now. Although I was using BP Premium for the past 3 weeks since they ran out of Ultimate - So maybe the difference will be bigger going from 95 or less rather than 98....
My 2 cents :)
good work
The following is direct from the Honda website. It doesn't specifially mention the Prelude but it does say on the bottom that it has not been tested hence there is a risk.Quote:
Originally Posted by Creative
Ethanol
The following Honda vehicles may be operated using fuel containing up to 10% ethanol (E10):
http://www.honda.com.au/buying+a+hon...illing_car.jpg
http://www.honda.com.au/buying+a+honda/blip_black.gifAccord
http://www.honda.com.au/buying+a+honda/spacer.gif2003 onwards
http://www.honda.com.au/buying+a+honda/blip_black.gifAccord Euro
http://www.honda.com.au/buying+a+honda/spacer.gif2003 onwards
http://www.honda.com.au/buying+a+honda/blip_black.gifCivic (including Hybrid)
http://www.honda.com.au/buying+a+honda/spacer.gif2004 onwards
http://www.honda.com.au/buying+a+honda/blip_black.gifCR-V
http://www.honda.com.au/buying+a+honda/spacer.gif2003 onwards
http://www.honda.com.au/buying+a+honda/blip_black.gifIntegra
http://www.honda.com.au/buying+a+honda/spacer.gif2002 onwards
http://www.honda.com.au/buying+a+honda/blip_black.gifJazz
http://www.honda.com.au/buying+a+honda/spacer.gif2004 onwards
http://www.honda.com.au/buying+a+honda/blip_black.gifMDX
http://www.honda.com.au/buying+a+honda/spacer.gif2003 onwards
http://www.honda.com.au/buying+a+honda/blip_black.gifOdyssey
http://www.honda.com.au/buying+a+honda/spacer.gif2004 onwards
http://www.honda.com.au/buying+a+honda/blip_black.gifS2000
http://www.honda.com.au/buying+a+honda/spacer.gif2004 onwards
Other Honda vehicles were not designed or tested with E10 and therefore the long-term effects are not proven.
Ethanol contains less energy value than petrol. In theory, some loss of power and fuel economy (possibly 2-3%) may occur when using E10.
For further information, please refer to your vehicle owner's manual, or telephone the Honda Customer Hotline on (freecall) 1800 804 954.
Man you guys make me want to try a tank soon!
I was actually thinking if it is possible the Ethanol made the car running a bit more leaner than usual, hence the power increase?
I've always noticed that running some particular higher octane fuel the car runs richer during dyno runs, although low throttle is always balanced out to around 14.5 to 1 by narrow band O2 sensor... I would imagine the LATTER is responsible for the increase mileage with higher octane fuel since they have high calorific value (higher density) and as such the ECU will use less of it during cruise mode.
Don't think it'll affect full throttle that much though if you know what I mean.
you o2 sensor is ignored on full throttle so yeah it will still pump the same amount of fuel no matter what unless it knocks then it will retart
I'm gonna boycott until i find out it won't screw up my car
Limbo - well in some cars the ECU and the O2 can still detect and work together over a longer term to try and adjust even full throttle air fuel ratio but not really sure on the Hondas.. I always thought Honda's run pretty good already from what I've seen on the Dyno Graphs, mid 12's more or less. Any leaner and you lose instant throttle response and increase heat, although there's slightly more power as well..
Well I think my next few tanks is going to be Extreme 100 - hopefully won't stuff up the Euro ! Wish me luck :D
The only problem with G-Tech testing is that you have a gap of a few days in between tests in order to empty your tank... :(Quote:
Originally Posted by Omotesando
anyone wanna start a BBQ session? this fuel gives me lots of flame..hahaha...
I am having my high school 20 year reunion this sat. I am also looking forward for OZHONDA to start a bbq for members-2005 prechristmass= lunch, for SYDNEY members. . I will support it.