93 from Costco. =) Very cheap.

 

I wish Cali would bump up to at least 93. We have the lowest "premium" in the country with some of the highest prices...jack asses! LOL

Its crazy, I have never heard of any place selling higher than 98....so 100 and 110....DAMN! I mean race fuel is like 116 ain't it?

 

What Mustang said. I run 89 all the time with no pinging or driveability issues. Higher octane gas is not 'better' gas.

 

Really? what brand because I hear people complain that they ping with 91

 

the one in the middle

 

^If you're talking to me I'm well aware of where the button for 89 octane is located, I'm just curious if he gets only Chevron or only Shell or something, and they just have better gas that doesn't ping even though it has a lower octane rating than the 91 that I hear a lot of people complaining makes their car ping.

 

Pumped in 94 earlier. Only put in $40 at a time because I like to keep my car light.




Unfortunately my car likes to keep my wallet light as well....

For those of you who pump in gallons. 4 liters = 1 gallon. Do the math lol.

 

Ive always ran 91-93 depending on where I fill up. Most stations around MN have 91-92 premium but you get lucky and find 93 scattered around. The BP by my house has non-oxy 93 and I usually just fill up there. Car seems to like the non-oxy fuel a little bit more. no performance gains obviously, but it idles a little smoother and just sounds a bit healthier. I wish I had a tune with different fuel maps.... Within a couple miles of my house I can get 93, e85, 110, c16, and nitrous if you wanna get stupid. I feel im almost obligated to own something that takes race gas...

 

I run 93 all of the time because the one time I tried 89 octane my engine would ping under light throttle once the engine warmed up. It pinged so much so that I was afraid to give it more gas which usually will stop any 93 octane pings that I get from time to time.

Now I don't know what you other G drivers think about this but, like I said above, my engine would ping under light throttle even on 93 octane. Albeit the pinging wasn't that bad but it still bothered me. I ran a full bottle of Red Line SI-1 fuel system cleaner on one of my fill-ups after hearing from at least one other G driver that this stuff worked wonders on their issues. To my amazement my pinging stopped or at least is no longer noticeable which kind of confirms one of my thoughts on the cause of the issue in the first place, partially clogged fuel injectors.

It is a little off topic, but since other users have mentioned pinging on this thread I thought I would throw the Red Line cleaner idea in there.

 

Im trying techron when ever im bothered enough about it.

 

Yeah I run Gumout every once in a while and run 93 octane, and I never have any problems with pinging. but I've seen on several other threads that people used 91 and still have pinging. I have read that California has the worst gas in the country though so I'm guessing thats what it is.

 

Too high of an octane is just as bad as too low.

 

You do not gain any HP from octane.

 

use Union 76 or Costco 91 ocane all day in sunny CA...

 

Octane booster does nothing. There was an article where that stuff was tested and it really didn't do a damn thing, just an FYI.

And I just met a guy that works for an oil company and he said that even the "octane" doesn't make much of a difference either. He said in MOST cases, you can use a lower octane that what is "suggested". But of course high performace and forced induction without exception need as high as you can find.