It is not all the same. Stay with the name brands for your Z06. It's the additives that make the difference.

 

I like Sunoco Ultra 94
Amoco Platinum or Gold 93 as an alternative.

And for track events I use Sunoco GT 100.

 

Agreed. Same for me...Gotta watch the ones like "Citgo" for political reasons....Alotta Citgo's are always torn up down here for H20 found in their tanks...

Andy

 

Not only are we taxed to death here in Ca., we also have this low octane stuff they pedal off as premium with a rating of 91. Simply pathetic!

I have always used only one brand, Union 76. They are the only "major" in the state that no longer uses the MTBE. By burning 76, I am not contributing to putting anymore poison into the water tables!

Between the bureaucratic bullshit of smog checks, putting bullshit in the gas, 91 octane premium, it's amazing anyone still lives in this state!!

 

"Your Car Knows" :lol: Stay with the name brands for your Z06 :cheers:

 

I like Sunoco Ultra 94
Amoco Platinum or Gold 93 as an alternative.

And for track events I use Sunoco GT 100.

I totally agree DJ, Sunoco Ultra 94 is the best. I'll add that Mobil or Citgo 93 is also a good alternative. I had some very bad experiences with Shell 93 from different Shell stations.
:usa: Wally

 

Here in Colorado Springs 91 is the only choice. So I add a little octane booster such as "Outlaw".

 

sunoco ultra 94."the highest octane under the sun."

 

sunoco , used it since the 50s ,great gas

 

All Gas is the same, the differences is the additives. Gas is refinded the piped all over the country, in the same pipeline. So Amoco puts 1000 gallons in the pipe in Houston for NY, it does not have to wait of that same 1000 gallons to arrive a few days later. It takes the immediate delivery of 1000 gal in NY. At this point Amoco has a distribution center where it adds it additives and fills the tankers to deliver to the stations. So the refined gas is the same according to Octane, then additives make the difference.

 

The above responses are correct. If you would like more in depth reasons behind them, search this forum for "refinery". I wrote a fairly exhaustive post on how we get gas from the refineries....

JC

 

For everyone's information, the Corvette Assembly Plant factory fill is BP.

 

Everybody says name brands, but where is the evidence that it is better? I think a lot of people have been duped by marketing.

tim

 

Unless the dealer is committing fraud all 92 octane gas should be 92 octane. I will tell you a secret (maybe it isn't a secret). I grew up in Lima, Ohio. My father worked for Standard Oil of Ohio (Sohio, later BP). There was a Sohio oil refinery in Lima. When local gas stations (Shell, Mobil, Marathon, etc.) needed gasoline quickly, they called the Sohio plant who would use their unmarked tankers to make deliveries.

I know some of you guys can remember the old days when most ads on TV were for cigarettes and gasoline. All of the major oil companies used to extol the virtues of the additives in their gas. Then the arab oil embargo and gas prices shot way up and all people cared about was cheap. That is when gasoline companies quit advertising and sold gas as a commodity.

Even though some of you guys think that some gas is better than other gas, oil companies see themselves in a commodity business today, not a differentiated product business.

 

Yeah, here in CA all we can get is "91" pump octane MAX, no matter which brand we buy. I don't have any proof but that makes me think California Z06 owners are down a little bit in power. I don't hear any knock (pings) from my engine, even on a hot day, but I suspect there may still be trace (unaudible)detonation in the engine.

Now here's the rub, Californians get the worst gas in the nation but have to pay MORE to get it. Premium (91) unleaded right now, from any of the big named brand gas stations, is selling for close to $2.10 per gallon. At the outset of the War in Iraq, gas was over $2.30 per gallon, so I guess we shouldn't complain.

 

For everyone's information, the Corvette Assembly Plant factory fill is BP.

What grade of BP?
And do you know why they picked that brand?
Thanks...

 

Not all gas station operators are honest. I`ve had more pinging from so called 93 octane from some stations than 91 octane from others. Depends on the luck of the draw a lot of times. If you find a good station(no matter what the affiliation)stick with it if you can.

 

Amoco, it's a name brand, but here in GA it's the only low sulfur gas....

 

I spent 22+ years in the oil & gas business, in everything from exploration and production to retail gasoline marketing and environmental cleanups. I certainly don't know everything about it but I will say that I buy my gas ONLY at high-volume, name brand stations. Under NO circumstances would I buy gasoline from a non-branded convenience store or station.

Most people would be VERY surprised how prevalent co-mingling of product actually is. In some small towns in East Texas (and elsewhere) you would be darn lucky if you got anything close to what you thought you were at ANY of the gas stations in town.

This does not mean that you can never trust your local downtown service station owner or local jobber. In most cases you can. Just be aware of the things that do go on.

Fastdad

 

Not all gas station operators are honest. I`ve had more pinging from so called 93 octane from some stations than 91 octane from others. Depends on the luck of the draw a lot of times. If you find a good station(no matter what the affiliation)stick with it if you can.

And remember that the octane rating on the pump is a "minimum octane rating". More than likely it is very close to that number but it could be a little higher.

I believe in some states that a state agency (here in FL I believe it is the Dept. of Agriculture) may spot check octane ratings to make sure the consumer is getting what he is paying for. I'd sure hate to be putting the 93 octane in when it's only 87

 

http://www.z06vette.com/forums/showthread.php?s=&threadid=22814&highlight=refinery

 

What grade of BP?
And do you know why they picked that brand?
Thanks...

I used BP gas on my 850 mile trip home from GA to MI. It gave me far better gas mileage than other gas brands. Coiencidence? I dunno, but I thought BP gas made a noticeable difference.

 

I used BP gas on my 850 mile trip home from GA to MI. It gave me far better gas mileage than other gas brands. Coiencidence? I dunno, but I thought BP gas made a noticeable difference.

Interesting. I'm gonna give it a try :cheers: :cheers:

 

I used BP gas on my 850 mile trip home from GA to MI. It gave me far better gas mileage than other gas brands. Coiencidence? I dunno, but I thought BP gas made a noticeable difference.

Has to be a coincidence. Gas mileage is about enegy, assuming you weren't suffering predetonation (i.e., too low of an octane for your engine). In gasoline we usually measure this in BTU's. Here's the deal - all gasolines molecules (heptane, octane, nenane, and decane) have the same BTU value, so your improvement was due to a factor other than gasoline.

 

Hello to all , This is a very interesting subject for someone that knows nothing about gasoline, I have always used union 76 here in California for my corvettes, Primarily because alot of the hot rod guy's from my youth used to run the stuff with octane Booster, I am interested to learn more, I am considering adding " Outlaw octane Booster " Any thought's or suggestion's Thanks

 

Since this has been brought back to the top, I voted no. Back in the summer I used Exxon exclusively because I felt like it was the better bang for the buck in my truck. When I picked up the vette the first tank of gas I bought at Exxon I noticed they had changed the label on the pump to say it now had ethanol blended in. If I am going to be paying a premium price for premium gas, I want premium gas. It has been my experience that ethanol does not give me back the MPG that premium does. I now buy my gas from Shell just up the street that is not blended.