Fuel Type Options

[SiNzz]

Hey everyone,

Noob question here, so bear with me, since I couldn't find anything through searching. Just wondering what kind of fuel you guys put into your celicas. I realize that anyone with a swapped or Turbo'ed 6G obviously uses Premium, but what about those of you running 5SFE or 7AFE engines? I would think using a higher octane fuel would increase performance a bit, but does it? Or is it dangerous for the engine? Any more importantly, is it even worth it with the rising cost of gas... Thanks!

[Coomer]

It's definitely not worth running 93 octane in your stock 5S-FE or 7A-FE. I think people get that placebo effect when they run higher octane fuel on a stock motor that's made to run on 87.

[devilsden97]

the rise in performance is minimal....if even noticeable. I use 87 octane, cheapest and the car runs just fine. I have a 5sfe btw, i filled the tank with 93 one time...didnt notice a difference.

[DeW_H0e_GT]

i fill it with 89 octane.....

[CelicaGT04]

I dont notice any performance enhancement in the fuel, although i can say i have noticed before that i can go a few more days filling with 93 octane then the traditional 87 octane.
It might be just the thought of it costing more making it seem that way.
But i really think it burns more efficiently. I will try it and let you guys know.

[o0black0o]

I put 87 in mine regually. Its more effeciant from what I can tell. Helps since I push my car alot.

[CelicaZR]

I alway used Premium Unleaded (98 Octane) in mine.
Recommended by Toyota

[94wrc]

You guys have very low octane ratings, I put 99 ron in mine normally or at the least 98. There are some good points to living in the UK after all our lowest octane rated fuel is 95 ron.

Nathan

[tufy]

i use 100 octane fuel.
i think octane in u.s. is different...
98 Octane fuel in europe is 94 octane in USA. ...

[easternpiro1]

I dont notice any performance enhancement in the fuel, although i can say i have noticed before that i can go a few more days filling with 93 octane then the traditional 87 octane.
It might be just the thought of it costing more making it seem that way.
But i really think it burns more efficiently. I will try it and let you guys know.

ive done this experiment time and time again... i live in charlotte and i work in monroe (30 miles away) i put premium in my car and by half tank its at 200 miles if i use a grade lower, or 87, the gas burns away quicker. for instance, i fill up monday morning and im at half at tank by wednesday afternoon. when i used the lower grade i was at a lower milage rate, and more gas was consumed...


i would retest to ensure reliability, but i dont want to experiment with gas prices so high, i'll just stick with 93!

[SHERMAN]

i use 89 because i get on average about 2 to 2.5 more mpg. so if i buy 10gallons of 89 for 10c more that 87 i cost my about $1 extra but i get about 40 extra miles on a gas tank and that about an extra gallon so i save about 2 bucks. if that made sence. i aslo gutted my car and found that thats good for about a 1 to 1.5 mpg every time. i almost always shift at 2k and go very slow and i get about 34 to 35 mpg

[CelicaGT04]

I dont notice any performance enhancement in the fuel, although i can say i have noticed before that i can go a few more days filling with 93 octane then the traditional 87 octane.
It might be just the thought of it costing more making it seem that way.
But i really think it burns more efficiently. I will try it and let you guys know.

ive done this experiment time and time again... i live in charlotte and i work in monroe (30 miles away) i put premium in my car and by half tank its at 200 miles if i use a grade lower, or 87, the gas burns away quicker. for instance, i fill up monday morning and im at half at tank by wednesday afternoon. when i used the lower grade i was at a lower milage rate, and more gas was consumed...


i would retest to ensure reliability, but i dont want to experiment with gas prices so high, i'll just stick with 93!

WORD gas prices are high. Im glad to hear that i dont have to try this experiment
seeing as how it has already been done.

WE REST OUR CASE! (ive always wanted to say that)

[SiNzz]

Haha, thanks for the infor guys. Definitely makes sense. You guys in the UK and AU get some sweet gas, while "premium" where I live is 91 octane. I'm also glad others have taken the time and $$ to do that experiement

[FAQdaWorld]

If you're not experiencing knock then you dont need higher grade fuel. Any performance gain you experience is a placebo, you're getting the same mileage whether you realize it or not; the time ur higher octane fuel performed better your speed was probably not as high as it was with the lower octane fuel (IE, instetad of traveling at your car's most efficient speed (somewhere in the vicinity of 45 - 50 mph), you were traveling at 70 (with low octane). Detonation is not an issue on the 7afe or 5sfe stock, so premium fuel is not required, your compression ratio is only 9.5:1, so seriously stop wasting money on premium guys, you dont need it whether you like to think you do or not....

-FAQ

[tin_foil]

^ not true. Premium does have benifits. You should always run higher quality gas through your engine every once in a while. Cleans things out a little.

[FAQdaWorld]

The grade of fuel has to do at what point the fuel combust due to compression / heat. It doesnt help 'clean out' anything. Suffice it to say there is a difference between buying 'crummy' 87 octane, and quality 87 octane (which will have some additives to help clean the motor), our cars have no need for a fillup of premium. If you're worried about cleaning up carbon buildup run some cleaners through the motor or buy a better QUALITY of gas, you dont need a higher octane. it doesnt warrant running on premium.



for those curious about reading about gasoline in detail (ie none of you)

GAS FAQ


_FAQ

This post has been edited by FAQdaWorld: May 21, 2006 - 6:21 PM

[easternpiro1]

LMFAO @ THE OWL!!!! i honestly tried to get through the thing, but i got A.D.D...LOL...

If you're not experiencing knock then you dont need higher grade fuel. Any performance gain you experience is a placebo, you're getting the same mileage whether you realize it or not; the time ur higher octane fuel performed better your speed was probably not as high as it was with the lower octane fuel (IE, instetad of traveling at your car's most efficient speed (somewhere in the vicinity of 45 - 50 mph), you were traveling at 70 (with low octane). Detonation is not an issue on the 7afe or 5sfe stock, so premium fuel is not required, your compression ratio is only 9.5:1, so seriously stop wasting money on premium guys, you dont need it whether you like to think you do or not....

-FAQ

yes, i travel at 70-80-90 mph on a regular basis on my way to work...i have a lead foot...which is why the higher octane works better for me...and for those who live where u can drive like a bat outta hell for the most part... lol

This post has been edited by easternpiro1: May 23, 2006 - 8:48 PM