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View Full Version : Best Gasoline 2 use?


ewave
03-07-2004, 09:16 PM
What gas is reasonable and gets the most MPG?

It can be global conglomerate or a local corner stop.

Costas
03-07-2004, 10:14 PM
i just use 93

ACS3rdDAN
03-07-2004, 10:58 PM
i just use 93


me too but i have to. i drive a prelude. i don't think it really matters what gas you use to get better gas mileage.

ewave
03-07-2004, 11:17 PM
CNG cars get better mileage and acceleration don't they?

faqh_u-)
03-08-2004, 12:56 AM
u talkin about grade or the company? i use shell all the time, them and exxon have the cleanest gas no chemicals added.. i mean dude if it doesnt ask to run premium, dont put it, its a waste of money and ure goin to be runnin too rich= less power

ewave
03-08-2004, 01:35 PM
Yeah I found this out a few decades ago.

People always dis me for buying shell and Chevron.

They always go Conoco, Diamond SHamrock and all those lower ones are heap and give just about the same service.

that_guy
03-08-2004, 02:50 PM
101 race fuel from good ol ligtspeed...

YAMADUDE
03-08-2004, 03:41 PM
Chevon seems to burn faster (Even w/ 93) Shell + texaco seem to be the best MPG for me. Exxons gas stinks like shit. Racetrack, not in my stuff! Kroger, randalls etc etc FUCK THAT. Citgo only when Im about to run out.

DV8
03-08-2004, 08:05 PM
Chevron for me. We tested this at work ;)

ewave
03-08-2004, 08:20 PM
Wonder if rocket fuel woudl work in a consumer's sar engine.

t0t4llyÜ83r
03-08-2004, 08:23 PM
good ol 83 octane Regular Unleaded for me

l33t
03-08-2004, 09:47 PM
good ol 83 octane Regular Unleaded for me

you mean 87? lol i use nothing but 93 in my si, one time i used 87 and going to the galleria and back i used a whole tank of gas, and it smelled like nasty farts whenever i stopped, 93 just does better lol

240sxboi
03-08-2004, 09:58 PM
Wonder if rocket fuel woudl work in a consumer's sar engine.
you have the dumbest fucking posts ever.

datboiduane
03-08-2004, 10:21 PM
good ol JP-8 :thumb:

ninja
03-08-2004, 10:22 PM
CNG cars get better mileage and acceleration don't they?

CNG = compressed natural gas.

And you probably can't use it in your car.

Solracer
03-08-2004, 10:34 PM
USE WHAT YOUR MOTOR WAS DESIGNED FOR....nothing else.....no reason to go around putting 93 in your stock 94 dx civic, 93 is only for DOHC VTEC motors and such, or really anything with a realivly high compression. Other wise you are wasting your money, you wont get better milage or hp. its all in your head.

Masoud
03-08-2004, 10:52 PM
For maximum performance, use premium gasoline

I just put plus for my car

Michael
03-08-2004, 11:00 PM
93 for the lex. Conoco, Phillips ALWAYS- I've seen the figures for the other
places listed.

Diamond Shamrock when i have to, and Costco when i have my parents costco card (they pay for it! who cares if the gas is suckier, i'll always top it off when i go buy groceries)

SE-Rstar
03-08-2004, 11:22 PM
fuck that shit, u guys are all fuckin n00bs!! i use shlitz beer 30 mpg on one six pack mfers! :thumb:

Masoud
03-08-2004, 11:24 PM
fuck that shit, u guys are all fuckin n00bs!! i use shlitz beer 30 mpg on one six pack mfers! :thumb:

:gayflag:

Kohinoor
03-08-2004, 11:29 PM
all gasoline is the same (im not talking octane) before it gets to diff companies, the only difference is the additive, such as chevron with techron, etc etc

i use texaco/shell and chevron, 93 octane only

ADRIAN
03-08-2004, 11:58 PM
chevron gas is best cause it has techron!

Solracer
03-09-2004, 01:23 AM
chevron gas is best cause it has techron!


If you use 93 octane on a motor that was designed for 87, you can actually gum shit up.

WRXTuan
03-09-2004, 04:39 PM
I have to use 93 octane (91 needed) but i go for shell/texaco. It's the one that has worked for me.

97teg
03-09-2004, 04:56 PM
93 if your car requires it. if it dosnt then dont run it unless you have advanced the timing or boosted it. if your car tells you to use 89 and you put 93, that dosnt mean you are gonna get better gas mileage. In fact you might get a little less mileage.
If you are going to use 93 I highly recommend that you advance your timing. :)
just back off if it pings.

D

Prelude92
03-17-2004, 12:14 AM
umm mines says to use premium and ever sincei got it thats all i put except for a couple of times when i put regular but that was like 3 times from what i remember so its 93 for me hehe

DJCharlie
03-18-2004, 03:03 PM
cheapest possible. The dirty gas last longer. The good shit burns too fast... :D

PissYellowGTi
03-18-2004, 03:07 PM
where can i get 100

Havokmkr
03-18-2004, 03:17 PM
Well guys, since you're probably ruining your cat and your motor, it's not your fault that no-one told you, I'm going to do you guys a favor. Octane ratings tell you about how slow the gas is going to burn. The higher the octane, the slower it burns. So let's say that you are supposed to be running 87 octane, but like an idiot, you decide to throw away your money on 93 octane. All that fuel that is still on fire is going to be pushed out of the combustion chamber, and into your exhaust. The fuel that didn't get ignited is going to collect on your catalytic converter and create hotspots that will eventually either melt the plates that hold the ceramic up causing it to rattle or totally cover all the metal with carbon, making your cat useless as far as emissions go. I used to work on gas pumps and the best quality gas in TX will either be Shell or Texaco with Chevron and Exxon coming in a close second. Those little cheap corner stores like Conoco and even places like Walmart, HEB, and Costco either buy watered down gas, or water it down themselves to stretch it out. Now boys and girls, do you know what water does to your engine? I won't get into all that, now that you know the truth, stop being retarded and buy the octane gas you're recommended to buy in your owners manual. For those of you with modified cars, you will need to determine what grade of fuel you need to avoid detonation.

Havokmkr
03-18-2004, 03:31 PM
"Why run higher octane?

1. higher octane slows down the combustion process giving you a slower, more controlled burn.
....A. advantage to this is that it allows you to increase your timing, and/or compression as you're less likely to have detonation.

....B. advantage is that it helps to prevent pre-ignition, preventing detonation from hot spots in the combustion chamber.

....C. advantage is that you can run run more advance, and/or higher boost levels on forced induction vehicles, the slower burn helps to prevent the combustion process from blowing up, rather allowing it to burn(when it blows up you have bent rods, burnt valves, holes in pistons...)

....D. advantage is that you can run nitrous oxide with more ingnition timing, and a smaller chance of pre-ignition(read C above)

....E. disadvantage is that if you don't have the car tuned to run specifically on the higher octane gas, you'll end up with less power since the combustion process is still attempting to burn the fuel when the exhaust valves open, dumping still burning fuel into your exhaust.

....F. disadvantage is that it's going to make your wallet considerably lighter." Austin from Team-Integra.net

I will post some more tech info in a little while.

Havokmkr
03-18-2004, 03:41 PM
"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.

Any motor fuel will spontaneously ignite under the right conditions - too much compression, hot spots from leftover carbon deposits, excessive boost, too much ignition advance, or a number of other causes can provide the source of ignition. When the flame front from this ignition event meets the one created by the spark plug, the result is sky-high cylinder pressures and a destructive shock wave that can shatter spark plug insulators, hammer rod bearings, break rings, or even put a hole in the piston. The octane number is a way to express the resistance of a fuel to this type of unwanted ignition.


Or to quote E.F. Obert, in "Internal Combustion Engines and Air Pollution" (1973, Harper & Row):

"During the compression stroke of a spark ignited engine, the pressure, temperature, and density of the mixture are increased and, depending on the fuel, chemical reactions ... may begin. The spark ignites the mixture, then the flame travels across the combustion chamber at a more or less orderly pace with the pressure rising uniformly throughout the chamber. Ahead of the flame front, the unburned mixture ... is compressed by the rising pressure, with an accompanying rise in temperature and density. ... If the ignition delay (chemical) of the end gas is consumed before the flame arrives, autoignition takes place. With autoignition, the orderly process becomes uncontrolled and a violent rise in pressure may occur. Energy may be liberated at such a rate such that the walls of the chamber ... vibrate, and knock is said to be present."



For all intents and purposes higher octane gives you a slower, more controlled burn...

Austin"

As you can see, this is another quote from Austin that helps you get a better understanding of how the octane rating affects us, the consumers.

SecretAgent
03-19-2004, 02:07 AM
in response to the first post, i'll tell you this....every gas company uses "techron" all the additive lingo is just advertising. the EPA dictates what additives are to be added and in what quantity. they all have to ad the same amount of all of them.

there are a few additives tho that certain companies use more of. but i can guarantee you that you won't see a difference as long as you don't shop at some tiny mom and pop gas stop. the biggest thing you have to worry about is not the quality of the gas, but the quality of the underground storage tanks that it's stored in under the gas pumps.

i almost always use RaceTrac gas because it's the cheapest and it's right down the road from my job.

Solracer
03-19-2004, 02:12 AM
Wrd, I use Murphy USA, well, because it IS at my job.lol

mikespeed95
03-19-2004, 02:36 AM
i just spray and run off ether........

Prelude92
03-23-2004, 05:54 PM
there are a few additives tho that certain companies use more of. but i can guarantee you that you won't see a difference as long as you don't shop at some tiny mom and pop gas stop. the biggest thing you have to worry about is not the quality of the gas, but the quality of the underground storage tanks that it's stored in under the gas pumps.

i almost always use RaceTrac gas because it's the cheapest and it's right down the road from my job.
it is recomended to pump gas from the newest gas stations around town ie berry and fulton opened maybe 6months ago citgo airline and berry rd. opened bout 1 yr ago diamond shamrock 43 and 290 idk but it looks new

Broke95GS-T
03-23-2004, 06:13 PM
race gas 106 octane @ 20psi !!