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Simple question... fuel #430104 Mar 30, 5:57pm Mar 30, 5:57pm
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2000 Midnight Blue Toyota Celica slimer110 OP
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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

Re: Simple question... fuel [Re: slimer110] #430105 Mar 30, 6:03pm Mar 30, 6:03pm
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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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Re: Simple question... fuel [Re: slimer110] #430106 Mar 30, 6:04pm Mar 30, 6:04pm
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The GTS requires premium grade fuel of 91 octane or better, because the 2zzge engine has an 11:5:1 compression ratio.

Re: Simple question... fuel [Re: GTS2003BLK] #430107 Mar 30, 7:28pm Mar 30, 7:28pm
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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?
Re: Simple question... fuel [Re: wiredthief] #430108 Mar 30, 7:32pm Mar 30, 7:32pm
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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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Re: Simple question... fuel [Re: Chelica815] #430109 Mar 30, 7:34pm Mar 30, 7:34pm
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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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Re: Simple question... fuel [Re: Zero] #430110 Mar 30, 8:01pm Mar 30, 8:01pm
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what if i always use 93 or 94? is that good? lol.

Re: Simple question... fuel [Re: jordon] #430111 Mar 30, 8:06pm Mar 30, 8:06pm
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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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Re: Simple question... fuel [Re: lpfan076] #430112 Mar 30, 8:06pm Mar 30, 8:06pm
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^^^ rofl rofl


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Re: Simple question... fuel [Re: Zero] #430113 Mar 30, 9:07pm Mar 30, 9:07pm
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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?
Re: Simple question... fuel [Re: wiredthief] #430114 Mar 31, 5:36am Mar 31, 5:36am
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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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Re: Simple question... fuel [Re: CARBON_SYPHER] #430115 Mar 31, 10:09am Mar 31, 10:09am
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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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Re: Simple question... fuel [Re: Chelica815] #430116 Mar 31, 10:24am Mar 31, 10:24am
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what about...100 octance wtf


What I need to get is a silver gt right? Then I can try and be fast...right?
Re: Simple question... fuel [Re: wiredthief] #430117 Mar 31, 10:36am Mar 31, 10:36am
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4-5 dollars per gallon.


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Re: Simple question... fuel [Re: combatc87] #430118 Mar 31, 10:48am Mar 31, 10:48am
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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."

Re: Simple question... fuel [Re: GTS2003BLK] #430119 Apr 1, 9:07pm Apr 1, 9:07pm
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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?

Re: Simple question... fuel [Re: maingear] #430120 Apr 2, 1:48am Apr 2, 1:48am
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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

Re: Simple question... fuel [Re: sweetnuts4sale] #430121 Apr 2, 2:22am Apr 2, 2:22am
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^^^ rofl

more like OPEC angry



Like they said above: GT 10:1 GTS 11.5:1 (Compression Ratio)

Re: Simple question... fuel [Re: maingear] #430122 Apr 2, 12:20pm Apr 2, 12:20pm
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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?
Re: Simple question... fuel [Re: wiredthief] #430123 Apr 2, 3:06pm Apr 2, 3:06pm
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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


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