Just wondering what gas others are using, 91 or 93? - Page 2 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

djm96z28 · 08-13-2009, 01:04 PM

91 octane is considered premium. Some stations around here have 91, others have 93 but both are premium gasoline.

slick rick · 08-13-2009, 01:07 PM

91

pino · 08-13-2009, 01:45 PM

I've always used 87 in my Trailblazer with no issues. I've never owned a sports car so I'm ignorant to the octane facts. Will 91,92 octane make that much of a difference in performance compared to 87 octane? I also realize that this is a $40K car and don't want to ruin it by putting cheaper gas. Any advice?

patriotpa · 08-13-2009, 02:01 PM

Quote:

Originally Posted by SRVFAN

In Tarrant & Dallas Counites the gas must have Ethanol in it during the summer months...... I've heard that they are finding Ethanol actually hurts the cars engine in the long run..... what are we supposed to do? What's yawl's take on that?

Ethanol in any amount kills fuel mileage in a gasoline engine. It takes more ethanol than gas to make the same power.

NEVER run E85 in a car not made for it. It'll get expensive real quick. E85 is CORROSIVE to non-E85 cars.

bluman · 08-13-2009, 02:05 PM

Quote:

Originally Posted by Rtoups

I think the V6 can just use the lowest. What is that, 86?

87

WadeWilson · 08-13-2009, 02:08 PM

So far I have only found 91 here in Cali so that's what I'm stuck with using.

knowitman · 08-13-2009, 02:10 PM

Quote:

Originally Posted by patriotpa

Ethanol in any amount kills fuel mileage in a gasoline engine. It takes more ethanol than gas to make the same power.

NEVER run E85 in a car not made for it. It'll get expensive real quick. E85 is CORROSIVE to non-E85 cars.

I don't believe he is referring to E85. A lot of places now require sometimes upwards of 10% Ethanol in regular gasoline.

SilverIce1 · 08-13-2009, 02:10 PM

Quote:

Originally Posted by Rtoups

I think the V6 can just use the lowest. What is that, 86?

This actually depends on your location relative to sea-level. In most of the continental USA the lowest is 87. In mountainous regions I've seen as low as 85.

Of course the V8 requires premium, GM uses 91 octane as the standard.

Banshee · 08-13-2009, 04:25 PM

If you have 93 in your area, use 93, If 91, use 91. A brief reason 91 is only available in CA, CO, AZ..etc is because of the altitude. The lower the pressure, the lower octane is required.

NO! using 93 in an engine that calls for 87 will do absolutely nothing. In fact, it may, over time, harm your engine.

Ranger 75 · 08-13-2009, 04:27 PM

93 Tier 1

Rikarus · 08-13-2009, 04:46 PM

105 Race Red!!!

(kidding)

91

DMAX · 08-13-2009, 08:34 PM

93

08-13-2009, 01:07 PM	#16
slick rick SoCal Mayhem Drives: 2010 Camaro 1SS/RS Join Date: Aug 2008 Location: Foothill Ranch, CA Posts: 5,488 View My Garage	91 __________________

08-13-2009, 01:45 PM	#17
pino Summit White 2SS WRS, Aut Drives: Summit White 2SS on Order... Join Date: Jul 2009 Location: Hernando, MS Posts: 44	I've always used 87 in my Trailblazer with no issues. I've never owned a sports car so I'm ignorant to the octane facts. Will 91,92 octane make that much of a difference in performance compared to 87 octane? I also realize that this is a $40K car and don't want to ruin it by putting cheaper gas. Any advice? __________________ Summit White 2SS RS, Automatic, Sunroof

08-13-2009, 04:25 PM	#23
Banshee Institutionally Insane Drives: 2013 IOM 2SS/RS 1LE Join Date: Feb 2009 Location: Detroit MI Posts: 2,115 View My Garage	If you have 93 in your area, use 93, If 91, use 91. A brief reason 91 is only available in CA, CO, AZ..etc is because of the altitude. The lower the pressure, the lower octane is required. NO! using 93 in an engine that calls for 87 will do absolutely nothing. In fact, it may, over time, harm your engine. __________________ It's got a cop motor, a 440 cubic inch plant, it's got cop tires, cop suspension, cop shocks. It's a model made before catalytic converters so it'll run good on regular gas. What do you say, is it the new Bluesmobile or what?

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08-13-2009, 01:04 PM	#15
djm96z28 Drives: 2012 Camaro 1SS LS3 Join Date: Jul 2008 Location: Jacksonville FL Posts: 1,114	91 octane is considered premium. Some stations around here have 91, others have 93 but both are premium gasoline.

08-13-2009, 02:08 PM	#20
WadeWilson How U Doin? Drives: 2014 CTS-V Coupe Join Date: Oct 2008 Location: Californication Posts: 24,156 View My Garage	So far I have only found 91 here in Cali so that's what I'm stuck with using.

08-13-2009, 04:27 PM	#24
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08-13-2009, 08:34 PM	#26
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