View Full Version : Gas Question
blageo23
07-28-2004, 11:28 PM
Probably a stupid question but here we go. I got a 98 GST Spyder and i have to use premium gas. Now how important is it? There is this Premium Only gas station that offers 91 octain for the price of regular (87 occtain i think). Cuz that would save me a bunch of money in the long run. My sister has a 2002 Spyder GT "premium only" and the dealer guy said she could fill up regular gas once in a while like as much as 1 time for every 3 fill ups. Its not really that big of deal I can go on payin what I pay because it doesnt hurt that much. And i could care less if you think im cheap or whatever. Anything i can do to save some money will just go into mods for my car anyways.
Thanks,
Mike
keep your boost stock.. do not go above 50% of the throtle and then you can use 87 or the "premiun" you are talking about and you will also save money on parts/fuel....
_E
JustROLLIN
07-28-2004, 11:39 PM
Its like this... Higher octane = more safety when boosting
You dont "have" to run premium, but I would not do a whole lot of boosting if you are going to run 87. You have a much better chance of pinging or detenation with a lower grade of gas.
I am sure someone will elaborate, but you get the idea.
MATCHBX
07-28-2004, 11:52 PM
I would definately stay away from any station that offers "Premium" gas at the price of regular. Gas stations make next to nothing on the gas they sell. That's why there is always a convenience store or service center attached to it. Otherwise they wouldn't make too much money.
I know there have been some gas stations that have been busted for watering down their gas. I try to stick to either Mobil or Amoco for my gas.
I wish I lived further away from the cities so I could run non-oxygenated premium instead of ethanol mixed premium.
Kracka
07-28-2004, 11:57 PM
Don't be fucking retarded. If you don't want to pay for a quality premium fuel, then sell your turbo car and get a Honda; it is that simple.
LightningGSX
07-29-2004, 12:09 AM
Its really not that big of a deal.As long as you aren't running crazy boost, go ahead and run 87, your ECU will protect the car.You may noticed less power from ECU pulling timing, but other than that, you should have no problems or damage.
Super Bleeder!!
07-29-2004, 01:16 AM
but then, what fun would it be to drive your car then?
Halon
07-29-2004, 05:46 AM
91 was the premium octane on the West Coast. I think you'd be fine. And I definately agree that if you don't race around a lot then you'd be ok with lower grade fuel. I hardly ever race around on the streets so I wasn't concerned at all with using 91.
TheBlizzard
07-29-2004, 07:02 AM
The way I see our turbo cars react to different gas, I am going to run the best shit out of the pump that I can find. Shit if the 111 octane gas from the Mobile by my house wasn't 3.50 gal I would run that gas all the time.
Our cars are so octane picky I don't know why someone would own one and try to cheap out and put some garbage gas in it. I mean shit if you have a 10 gallon tank and 87 octane is 1.70 and 92-93 octane is 1.90 you are paying $2.00 more for a tank of gas. It isn't that much of a difference.
Eric is right though, you cars ECU will protect it to some extent but constant knocking/detonation will kill your car eventually even if it pulls timing to protect it. The cars asks for premium for a reason, its not a pich to make you think that if you do it your car will be faster, its just for safety of the motor. Our cars were initially setup pretty aggressive from the factory to begin with. That is the reason that they require premium fuel. Now if they were setup to run 5lbs of boost from the factory and not so aggressive timing maps and lower compression it would be a different story.
And I don't know if its been proven but I would be willing to bet that your fuel economy would be a lot better with a more efficient gas/burn.
But hey if you saved $2.00 a gallon and you filled your car up once a week, shit in 20 weeks or six months you could buy a Joe P boost controller with the money you saved, if your car lasted that long....WTF :lol:
CRAIG
Halon
07-29-2004, 09:08 AM
Also on my 2G, it said Premium only on the gas gauge, and also on the inside of the gas lid. On my 1g, no where have i seen Premium Only written. Am I just blind or what?
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