Regular vs Premium - Page 4 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

Stonefox187 · 03-31-2009, 12:03 PM

Are the MPGs advertised calibrated using 87, 91, or 93 octane fuel?

SSOOCH · 03-31-2009, 02:02 PM

I'm laughing again. People are going to drop around $40k for a "High Performance" vehicle and they're not going to spend the extra ten cents a gallon to acheive it's optimum and recommend performance from Chevrolet. Seriously, it'll cost you at the most $2 more per fill up. If you're worried about $2 extra bucks each fill up, you probably shouldn't be buying a Camaro!

arozar · 03-31-2009, 02:07 PM

Quote:

Originally Posted by fever_08

pardon????

The function of a higher octane gasoline is to delay the flame propogation or 'burn' to prevent detonation. I'm not sure about the L99, but the LS3 will have a 92+ octane recommendation.....just like the corvette. Sure, there will be no problem running a lower octane gas......any detonation, or ping will be picked up by the knock sensors and the computer will dial back the ignition timing....but you will definitely not get all of those 420+ horses!!

So, performance affected with regular gas, definitely, engine longevity affected with regular gas, definitely not......

Yep, 92 + rating. It says so in my wife's Impala SS too, RTFM!!!!

Zabo · 03-31-2009, 02:38 PM

Quote:

Originally Posted by The Boat

Tried it in an ls2. It doesn't make that big a difference unless you are tuning to it. It won't give you nearly as much increase as in an FI car either even with tune.

IT runs super smooth though!

Nah, I won't be running it on 110 with a tune. I wasn't sure if Fuel Injection would have any real issues with it and if/how far the timing would be thrown out of whack. May be a good way to clean out the injectors every 5000 miles.. XD

Buddy did it in his bike..pure, unadulterated, pwnage. Did have to retune the bike afterward but we got a good laugh.

Sleeper · 03-31-2009, 03:48 PM

Dr. Bill Wattenberg says buying premium gas is like throwing your money away.

He is a Scientist.

http://www.pushback.com/Wattenburg/

Hooy · 03-31-2009, 04:32 PM

C'mon, guys. Don't be stingy and just pay the few cents extra for premium. Your conscience and engine will thank you.

Bell040 · 03-31-2009, 04:56 PM

Quote:

Originally Posted by Sleeper

Dr. Bill Wattenberg says buying premium gas is like throwing your money away.

He is a Scientist.

http://www.pushback.com/Wattenburg/

Does Dr. Bill have a degree in Chemical Engineering? Even if he did, the engineers that develop our hallowed sports car trump him.

The engineers at Chevy knew what they were doing when they wrote...

... "use premium gasoline for increased performance."

If you think that they are idiots... you shouldn't buy a car designed by them.

arozar · 03-31-2009, 05:03 PM

Quote:

Originally Posted by Bell040

Does Dr. Bill have a degree in Chemical Engineering? Even if he did, the engineers that develop our hallowed sports car trump him.

The engineers at Chevy knew what they were doing when they wrote...

... "use premium gasoline for increased performance."

If you think that they are idiots... you shouldn't buy a car designed by them.

Amen!!!

manimsoblack · 03-31-2009, 05:20 PM

A couple of the gas stations down here offer 87-89-91-93-95 octane so would i be good with any of the top three?

MontyCarlo · 03-31-2009, 05:32 PM

Quote:

Originally Posted by Bell040

Does Dr. Bill have a degree in Chemical Engineering? Even if he did, the engineers that develop our hallowed sports car trump him.

The engineers at Chevy knew what they were doing when they wrote...

... "use premium gasoline for increased performance."

If you think that they are idiots... you shouldn't buy a car designed by them.

This engineer agrees. Engines are designed by smart, well-educated people who've cranked through equations most of us have never heard of to fully describe the thermodynamics of a cylinder, and they know what fuel characteristics work best in their design. They're not going to tell you to buy premium unless it works better. And woe unto any man who puts something the engineers disagree with into the owner's manual.

"I have a doctorate" does not trump "we built the damn thing, here's the Finite Element Analysis."

spd98 · 03-31-2009, 05:58 PM

Quote:

Originally Posted by SQUALO

I think you should opt for at least mid-grade to keep up with performance. If it's not your daily driver, than don't short change your car, GO PREMIUM!

Why short change anything put cheap gas in a cheap car.

spd98 · 03-31-2009, 06:16 PM

Quote:

Originally Posted by Sleeper

Dr. Bill Wattenberg says buying premium gas is like throwing your money away.

He is a Scientist.

http://www.pushback.com/Wattenburg/

That has nothing to do with anything. I see nothing on his page that gives him any subject matter expertise.

Quote:

Originally Posted by bobintuc

The difference between regular at 87 octane and so called premium at 92 is not enough of a boost to warrant paying the extra price. By the time the high octane stuff gets transported in dirty trucks and sits in below ground tanks I will guarantee no gas station will promise you that the gas they sell is truly 92 octane. Ive worked in the fuel industry for 20 years, trust me you are not getting a better grade of fuel paying the higher price

This is quite simply not true most stations fill thier gas tanks on fairly regular basis. Gas doesn't sit long. Most stations around me fill weekly. The gas is filtered and cleaned at various points beofre it gets to your car so a "dirty" tanker really isn't an issue either.

BTW octain boosters rarley work. What your really doing is dilution. If the bottle of "booster" is 120 Octain how much will that really raise the octain of 16 gallons of gas? The answer is not much at all. There are several online calculators that will give you comparisons for this.

SummitRider800 · 03-31-2009, 06:34 PM

Quote:

Originally Posted by SSOOCH

I'm laughing again. People are going to drop around $40k for a "High Performance" vehicle and they're not going to spend the extra ten cents a gallon to acheive it's optimum and recommend performance from Chevrolet. Seriously, it'll cost you at the most $2 more per fill up. If you're worried about $2 extra bucks each fill up, you probably shouldn't be buying a Camaro!

fever_08 · 04-01-2009, 12:06 AM

if your vehicle is designed to run on 92+ octane fuel, thats what you should run to achieve sae certified numbers from the man....

If your vehicle is designed to run 87 octane, it is actually detrimental to run higher octane fuels. The Engines will run hotter, get a decrease in fuel mileage and carbon up quicker. This is due to the fact that higher octane fuel is harder to ignite and has a slower burn. In low compression engines, this slower burn means the fuel is potentially still burning while the piston is travelling downward in the cylinder...this exposes a greater area of the cylinder to the high combustion temps, increasing engine temps...

So, dont waste your money putting in 'the good stuff' unless the man calls for it, or you have increased the compression ratio by methods such as decking, pistons, head shaving etc etc..

just my .02$ worth

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03-31-2009, 12:03 PM	#43
Stonefox187 Drives: Dodge Challenger SRT-8 #2874 Join Date: Jan 2009 Location: Detroit, MI Posts: 32 View My Garage	Are the MPGs advertised calibrated using 87, 91, or 93 octane fuel?

03-31-2009, 02:02 PM	#44
SSOOCH Camaro SL,UTs Drives: 2010 Camaro SS/RS #16429 Join Date: Sep 2006 Location: South Jordan, UT Posts: 7,357 View My Garage	I'm laughing again. People are going to drop around $40k for a "High Performance" vehicle and they're not going to spend the extra ten cents a gallon to acheive it's optimum and recommend performance from Chevrolet. Seriously, it'll cost you at the most $2 more per fill up. If you're worried about $2 extra bucks each fill up, you probably shouldn't be buying a Camaro!

03-31-2009, 03:48 PM	#47
Sleeper Drives: It has 4 wheels Join Date: Dec 2008 Location: California Posts: 85	Dr. Bill Wattenberg says buying premium gas is like throwing your money away. He is a Scientist. http://www.pushback.com/Wattenburg/

03-31-2009, 04:32 PM	#48
Hooy Will Drive For Food Drives: Acura TL Join Date: Jan 2009 Location: Houston Posts: 261 View My Garage	C'mon, guys. Don't be stingy and just pay the few cents extra for premium. Your conscience and engine will thank you.

04-01-2009, 12:06 AM	#56
fever_08 Drives: '08 M3 Join Date: Jan 2009 Location: calgary canada Posts: 41	if your vehicle is designed to run on 92+ octane fuel, thats what you should run to achieve sae certified numbers from the man.... If your vehicle is designed to run 87 octane, it is actually detrimental to run higher octane fuels. The Engines will run hotter, get a decrease in fuel mileage and carbon up quicker. This is due to the fact that higher octane fuel is harder to ignite and has a slower burn. In low compression engines, this slower burn means the fuel is potentially still burning while the piston is travelling downward in the cylinder...this exposes a greater area of the cylinder to the high combustion temps, increasing engine temps... So, dont waste your money putting in 'the good stuff' unless the man calls for it, or you have increased the compression ratio by methods such as decking, pistons, head shaving etc etc.. just my .02$ worth