Today's cars have complex 3d fuel and spark maps and the MAF or MAP will handle any issues with variations in air density and temperature. The manufacturer takes all this into account when setting the required octane. Oh well, some people will remain convinced that higher octane = better because its more expensive.

 

... really!

 

ohhh hahahaha there is no ocean in nevada.. i think

 

Regular just went up from 2.23 last week when i put in and now its 2.29. By summer, its going to be 3 for 87. Sad. Gives me a reason not to drive around and get a full time job and maybe even overtime. I want to enjoy my summer and my moon/sunroof.

 

just hit 1.99 for 87 here in NC Wilmington.

 

well i guess we can call that 'natural selection' ;D just wait for your catalytic converter to fry from all the unburnt gas and you start knocking with anything but premium. enjoy your 'drivability'

 

Sorry it took so long for a reply, in my manaul it says 10.5 to 1, and 2 years ago running 104 octane I ran a 15.8 in the quarter, and just for the record i have tried 87 several times and the car runs like crap!

 

http://www.toyota.com/vehicles/2005/echo/specs.html

look at for yourselves, the specs have not changed since 2000, i did not realize that it was different for the scion

 

xB and xA = 10.5:1 Tc = 9.6:1 so both are right you just have to say which vehicle you are talking about. Just wanted to chime in.

 

doesnt the manual say that the MINIMUM Octance to use is 87??? Minimum.

 

Some people just never learn.

Go for it guys, fill up with 92. Actually I think you should go to Pep Boys and buy some 105 Octane Boost. That should get you up to 115-120 hp depending on how many stickers you have on your car.

 

If i had to guess.... it might be a cause of that rubber band that toyota puts in the throttle.... the nice 1.5 sec lag on the gas pedal.... I've been trying to find ways to remove that....[/quote]


my car has a lag in the throttle also i step on it and it takes like 1-2 sec before it goes this is not a everytime thing i dont believe this is normal and as for a hard idle i get a hard idle when are stops i will try the premium idea but only to reduse the idle if not frank toyota is getting a call!!! and one more question does your stock suspension ride rough? mine is a sport feel like its dropped anyone get these probs?

 

grrr double post but i read the 105 octane post about the sticker!!! ha ha aha ha

 

chill out... yello was just stating what comes out of the manual... it reads:

Unleaded gasoline, Octane Rating 87 (Research Octane Number 91) or higher...

that's all he's saying...

 

Unfortunately that "octane booster" only raises the octane like 1/10th of a point in reality (found that out the hard way). Now if you had a barell of toluene... :D

 

I was quoting for TC sorry _I_ was in the wrong forum (edited my previous post)!!!

well you minimally have to eat a certain number of calories to stay alive, that don't mean you eat more just because it is more than the requirement.

 

Well is some is good, more is better.... then too much should be enough.... i wonder how Cam II Purple would do? screw 97 octane.... 114 all the way...lol


JK... hey if i wunna run higher stuff, so be it, it's my money..... if it is a placibo, thats fine, atleast i feel better

 

why do people care what gas you run........do whatever you want

 

hey we each gotta figure things out in our own special way ;)

 

i dont tihnk u would be buying premioum gas if u seen gas prices in NyC