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Joined: Mar 2005
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slimer110
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slimer110 Mar 31, 12:57am - #430104 
2000 Midnight Blue Toyota Celica
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2000 Toyota Celica

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Pittsburgh, Pennsylvania
Simple question... fuel

I am getting my Celica this weekend, and i've heard that you can only use high octane fuel... is this true? Thanks -Josh
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ExNihilo
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ExNihilo Mar 31, 1:03am - #430105 
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2004 Toyota Celica GTS

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Tempe, AZ
The GTS uses premium fuel, and the GT can take regular 87 octane. I'm assuming you're talking about a 7th gen Celica. Earlier gens, I dunno.

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GTS2003BLK
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GTS2003BLK Mar 31, 1:04am - #430106 

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2003 Toyota Celica

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Portland, Oregon
The GTS requires premium grade fuel of 91 octane or better, because the 2zzge engine has an 11:5:1 compression ratio.
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wiredthief
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wiredthief Mar 31, 2:28am - #430107 

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2004 Toyota Celica

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Wilkes, NC
running regular, then switching to premium...what effects will this provide?

What I need to get is a silver gt right? Then I can try and be fast...right?
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Chelica815
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Chelica815 Mar 31, 2:32am - #430108 
2000 Silver Toyota Celica
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2000 Toyota Celica

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San Francisco -The Bay
Originally Posted by wiredthief
running regular, then switching to premium...what effects will this provide?


91 and above will always do wonders for your car. GTS should never use regular tho.

When I drove my GT, I would use 87 and then at the end of the week I would fill her up with a full tank of 91.

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Zero
Furi Kuri
Zero Mar 31, 2:34am - #430109 

Furi Kuri
2002 Toyota Celica GT

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San Diego, CA
if you have a GTS please use 91 octane. its the recommended rating and it keeps your car working. going cheap on your GTS will make it your fault for the car breaking down.

GTs can use whatever rating you please. there will be no performance difference but you will feel it burning the fuel better if you use 91. smile

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jordon
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jordon Mar 31, 3:01am - #430110 

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2003 Toyota Celica

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ny
what if i always use 93 or 94? is that good? lol.
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lpfan076
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lpfan076 Mar 31, 3:06am - #430111 

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2001 Ford Focus

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Milford, Ohio
Originally Posted by jordon
what if i always use 93 or 94? is that good? lol.


idk but it cant be good on your wallet spineyes

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Zero
Furi Kuri
Zero Mar 31, 3:06am - #430112 

Furi Kuri
2002 Toyota Celica GT

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San Diego, CA
^^^ rofl rofl

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wiredthief
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wiredthief Mar 31, 4:07am - #430113 

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2004 Toyota Celica

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Wilkes, NC
i was wondering why that fuel tank sticker said PREMIUM FUEL, and i was like on a my 4cyl? hmmm...so i did for a while, then stopped. Then i learned about our compression ratio. i guess i'll start pumping it back up again. I'll have to anyways because of n2o. thanks guys thumbsup

What I need to get is a silver gt right? Then I can try and be fast...right?
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CARBON_SYPHER
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CARBON_SYPHER Mar 31, 12:36pm - #430114 
2000 CARBON BLUE Toyota Celica GT
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2000 Toyota Celica GT

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COPPELL, TX
i have a gt and fill up with prem everytime! it runs so much better and i know in the long run that the cleaner fuel will be much better for the car

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Chelica815
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Chelica815 Mar 31, 5:09pm - #430115 
2000 Silver Toyota Celica
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2000 Toyota Celica

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San Francisco -The Bay
I don't even have 93 or 94 around here. With the prices of 91 already raping my wallet, I dunno if I can even afford running 94, lol.

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wiredthief
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wiredthief Mar 31, 5:24pm - #430116 

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2004 Toyota Celica

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Wilkes, NC
what about...100 octance wtf

What I need to get is a silver gt right? Then I can try and be fast...right?
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combatc87
Specialist
combatc87 Mar 31, 5:36pm - #430117 

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2001 Toyota Celica GT

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Frankfort, IL
4-5 dollars per gallon.

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GTS2003BLK
Senior Member
GTS2003BLK Mar 31, 5:48pm - #430118 

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2003 Toyota Celica

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Posts: 487
Portland, Oregon
I really like this site:

http://auto.howstuffworks.com/question90.htm

"The octane rating of gasoline tells you how much the fuel can be compressed before it spontaneously ignites. When gas ignites by compression rather than because of the spark from the spark plug, it causes knocking in the engine. Knocking can damage an engine, so it is not something you want to have happening. Lower-octane gas (like "regular" 87-octane gasoline) can handle the least amount of compression before igniting.

The compression ratio of your engine determines the octane rating of the gas you must use in the car. One way to increase the horsepower of an engine of a given displacement is to increase its compression ratio. So a "high-performance engine" has a higher compression ratio and requires higher-octane fuel. The advantage of a high compression ratio is that it gives your engine a higher horsepower rating for a given engine weight -- that is what makes the engine "high performance." The disadvantage is that the gasoline for your engine costs more."
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maingear
Senior Member
maingear Apr 2, 4:07am - #430119 

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2002 Toyota Celica

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Posts: 401
Arkansas
If you use 100 octane be sure it's not 100 LL (AVGAS) that is used in airplanes.
If you do, you will need to replace both O2 sensors, and replace or gut the Cat/converter. The LL stands for Low Lead. It will kill the sensors and clog the converter.

Higher the compression the faster that fuel burns. It can burn so fast that it will spontaneously combust and act like a hammer hitting the top of that piston. If the burn is slowed down, it will cushion the combustion.

Octane level too low, it will make a pinging sound.
Octane Level to high (100-120) combustion will not be complete at proper degree of crank angle rotation, causing slight power loss.

So the higher the octane level, the more stuff they add to make the burn retard. The more diluted the fuel is, the more it costs us. The fleecing of America?
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sweetnuts4sale
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sweetnuts4sale Apr 2, 8:48am - #430120 
2002 Silver Toyota Celica
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2002 Toyota Celica

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Charleston, SC
Originally Posted by maingear
so the higher the octane level, the more stuff they add to make the burn retard. The more diluted the fuel is, the more it costs us. The fleecing of America?


it's a conspiracy those damn american politicans robbing us of our much desirved horsepower agian eek grin happywink
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maingear
Senior Member
maingear Apr 2, 9:22am - #430121 

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2002 Toyota Celica

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Arkansas

^^^ rofl

more like OPEC angry



Like they said above: GT 10:1 GTS 11.5:1 (Compression Ratio)
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wiredthief
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wiredthief Apr 2, 7:20pm - #430122 

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2004 Toyota Celica

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Posts: 254
Wilkes, NC
thanks bud, that helps a lot! thumbsup

What I need to get is a silver gt right? Then I can try and be fast...right?
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Posts: 408
celikitten
April Fools
celikitten Apr 2, 10:06pm - #430123 

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2000 Toyota Celica

Joined: Jul 2003
Posts: 408
PA
i've always used regular... on all my cars... i can't freakin afford premium...

i don't even know if i'm gonna be able to get my celica out of storage this year frown

shamelessly addicted to ecelica
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