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Joined: Dec 2004
Posts: 468
GTS_Rosh
Senior Member
GTS_Rosh Jan 7, 6:40pm - #367781 

Senior Member
2004 Toyota Celica

Joined: Dec 2004
Posts: 468
Vancouver, BC, Canada
Higher Octane on GTS = more timing?

My owner's manual says I need 91 Octane. I ran with Esso 91 octane since I bought the car, then the other day there was a gas sale at Chevron, so I put in Octane 92 ... & I noticed a difference, like more steady, smoother, harder pulls throughout the RPM band. Now I was wondering if going to Octane 94 is even better? Will the ECU advance timing based on what Octane Gas your using? Cause I know advance timing seems to give more jump to a car.
Joined: Jan 2003
Posts: 7
techl10
New Member
techl10 Jan 7, 8:07pm - #367782 
2000 silver Toyota Celica
New Member
2000 Toyota Celica

Joined: Jan 2003
Posts: 7
New Jersey
It should'nt...I use sunoco 94 thumbsup good stuff no adverse effects so far!!
Joined: Sep 2003
Posts: 2,242
Lucky_317
Specialist
Lucky_317 Jan 7, 8:24pm - #367783 

Specialist
2000 Toyota Celica

Joined: Sep 2003
Posts: 2,242
Fontana, CA
the car will run better the higher the octane but no real big jump in power. even if you go up to 100 octane. you may see 1-3 hp if you're lucky.

Best 60' 1.959 best 1/4 - 13.7 @ 101mph
Joined: May 2004
Posts: 2,979
RookieGTS
Boobie Vision
RookieGTS Jan 7, 9:26pm - #367784 

Boobie Vision
2000 Toyota Celica

Joined: May 2004
Posts: 2,979
925 Nor Cal
yeah as long as you run that 91 octane in your baby, you should be coo! thumbsup
Joined: Jun 2004
Posts: 1,337
celicadragon
Specialist
celicadragon Jan 7, 10:10pm - #367785 

Specialist
2002 Toyota Celica

Joined: Jun 2004
Posts: 1,337
Pittsburgh, PA
i always go as high as the stations have but at most i can get 94 if im lucky never seen any higher

respect the gt-s
Joined: Oct 2003
Posts: 760
csheriff
Senior Member
csheriff Jan 9, 4:18am - #367786 
2002 Red Toyota Celica
Senior Member
2002 Toyota Celica

Joined: Oct 2003
Posts: 760
Wyoming
yes, the higher the octane the better, but as far as the noticible differences, I'm sorry to say but most of the time its just in your head. You'll only notice a descent difference on a large octane jump.

[Linked Image]
Joined: Jan 2004
Posts: 1,230
FloydianSlip6
Specialist
FloydianSlip6 Jan 9, 4:23am - #367787 

Specialist
2002 Toyota Celica

Joined: Jan 2004
Posts: 1,230
Massachusetts
<I'm a bad owner I use 89, looks like I'll be putting 91 in from now on
Joined: Oct 2004
Posts: 233
Lasherccl
Member
Lasherccl Jan 9, 4:40am - #367788 

Member
2001 Toyota Celica

Joined: Oct 2004
Posts: 233
Arizona
Originally Posted by FloydianSlip6
<I'm a bad owner I use 89, looks like I'll be putting 91 in from now on





grin i put 87 the first two times i filled up the tank till i actually read the gas door and saw the sticker and read on here that it needed 91

I fought the law and the law won, i lost my girl and i lost my fun, i fought the law and the law won.....
Joined: Aug 2003
Posts: 6,372
Speed4TheNeed
Caleb
Speed4TheNeed Jan 9, 8:32pm - #367789 

Caleb
2000 Toyota Celica

Joined: Aug 2003
Posts: 6,372
New Orleans, LA
the higher the better. i never put less than 91...i do the shell v-power every now and then and i notice a very small difference (in a good way).
Joined: Feb 2004
Posts: 1,716
celicafourotwo
Specialist
celicafourotwo Jan 10, 6:43am - #367790 

Specialist
2000 Toyota Celica

Joined: Feb 2004
Posts: 1,716
Nebraska
^^yup..same here..but shell v-power cost too much, like 10cent different..i use Phillip 66 91octane and it's good..

Originally Posted by pesho01
Question:
Whenever my car is at a full stop or even in park the RPM never sits on 0. what does this mean?
Joined: Oct 2003
Posts: 2,030
RevMonster
Masta OC
RevMonster Jan 10, 7:03am - #367791 

Masta OC
2003 Toyota Celica

Joined: Oct 2003
Posts: 2,030
Orange County, Ca
^^^ It isn't always better to use higher octane. There was a post a while back about GT owners using premo gas and feeling less power, and quite a few people agreed that some of the gas might not have been burning off. I can see that as entirely possible if you're using something like 100 octane on a stock GTS.

I'm just a crosshair
I'm just a shot away from you
Joined: Apr 2003
Posts: 8
useramous
New Member
useramous Jan 10, 7:17am - #367792 
New Member

Joined: Apr 2003
Posts: 8
Australia
Well here in OZ our celicas are made for 95 ron fuel, but if you put in 91, it will retard timing, so I guess you will notice a difference..
Joined: Nov 2004
Posts: 32
PH3NIX
Member
PH3NIX Jan 10, 9:37pm - #367793 

Member
2002 Toyota Celica GTS

Joined: Nov 2004
Posts: 32
MD
its all power of sugestion...

Always rise from the ashes to live a new day.
Joined: Dec 2004
Posts: 468
GTS_Rosh
Senior Member
GTS_Rosh Jan 10, 9:53pm - #367794 

Senior Member
2004 Toyota Celica

Joined: Dec 2004
Posts: 468
Vancouver, BC, Canada
Originally Posted by RevMonster
^^^ It isn't always better to use higher octane. There was a post a while back about GT owners using premo gas and feeling less power, and quite a few people agreed that some of the gas might not have been burning off. I can see that as entirely possible if you're using something like 100 octane on a stock GTS.


On a GT is a totally different story as its running lower compression. So 87 is good enough. But on a GTS with higher compression, the higher octane is necessary plus I really think it thrives on it, but only up to a certain point...like 94 tops, 100 is overkill.
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