I am not ashamed... V6 bound. - Page 8 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

justmeron · 04-08-2009, 10:05 AM

yes I was referring to the v6. I agree If I had the v8 it would deff only be prem gas.

Sorrow · 04-08-2009, 10:29 AM

Well, I have experience with that level of compression, but not with a direct injection system. However I would assume that one of the reasons for 89 vs 93 octane would be due to the fact that the fuel is directly injected. The cpu is probably tuned for the lower octane's burn rate. Thus it knows when to inject it. With a higher rated fuel it would take longer to completely burn so it would most likely want to inject it sooner or at a higher pressure (if that were possible)

One note is Octane does NOT refer to the power in a gas fuel. Both chemicaly produce around the same energy when combustion takes place. Octane is more a resistance to detonation and auto-ignition. Volatility is in reference to the evap point of the fuel, not any relation to the power either.

Also being an all aluminum engine, with what appears to be a pent roof design chamber, should also be a massive help with the combustion process. There's alot to dig into here obviously. Thats one of the reason's I'm personally opting toward the v6.

*Mr. Wyndham* · 04-08-2009, 11:11 AM

Quote:

Originally Posted by ArcAngel

No a high octane would definitely improve performance and possible MPG as well the CTS uses the premium

Nope, and nope.

The CTS uses an identical engine -- and recomends REGULAR. In addition, the engine's engineers say the ECU was written for regular, tuned on regular, and will provide 0% improvement if you use premium.

So...on a stock V6 Camaro -- if you use premium, you're just wasting your money.

ArcAngel · 04-08-2009, 11:14 AM

Really that's weird my friend must have been talking out of his ass then LOL he said his CTS Has to have premium and I said that's weird the camaro only needs regular. He was like I don't know that's what I was told LOL

THE EVIL TW1N · 04-08-2009, 11:48 AM

I thought "regular" was 87 octane.

*Mr. Wyndham* · 04-08-2009, 11:52 AM

Quote:

Originally Posted by ArcAngel

Really that's weird my friend must have been talking out of his ass then LOL he said his CTS Has to have premium and I said that's weird the camaro only needs regular. He was like I don't know that's what I was told LOL

Does he have the new CTS with the DI engine?

Xanthos · 04-08-2009, 12:16 PM

Quote:

Originally Posted by THE EVIL TW1N

I thought "regular" was 87 octane.

It is. And that's what the V6 camaro uses and the CTS uses.
- Xanthos

THE EVIL TW1N · 04-08-2009, 02:16 PM

Quote:

Originally Posted by XanthosV6

It is. And that's what the V6 camaro uses and the CTS uses.
- Xanthos

that's what I thought. there was a bunch of 89 octane talk in the previous page.

MikeT · 04-08-2009, 02:27 PM

Quote:

Originally Posted by Dragoneye

Does he have the new CTS with the DI engine?

As far as I know, the older, non-DI version of the 3.6L engine also uses regular 87 octane. Not sure if any version of that engine has ever needed premium.

SemperFi · 04-08-2009, 03:41 PM

Quote:

Originally Posted by MikeT

As far as I know, the older, non-DI version of the 3.6L engine also uses regular 87 octane. Not sure if any version of that engine has ever needed premium.

They haven't. Poor guy was mis-informed, and has been throwing money away on premium. :(

fierodeletre · 04-08-2009, 03:44 PM

I wish Utah thought 87 octane was "regular." Around here 'regular' is 85 octane.

SemperFi · 04-08-2009, 03:59 PM

Quote:

Originally Posted by fierodeletre

I wish Utah thought 87 octane was "regular." Around here 'regular' is 85 octane.

Whaaat?? I swear. Idk about you Utes. Yall got some trippy stuff over/up there.

But you apparently like camaros, so you must be alright.

Vash · 04-08-2009, 05:07 PM

Utah is 85? Do they have a Plus grade? use that 85 too low. That's B.S.

It's optimized for 87 but the computer can do things with timing to reduce knock but it will gimp your power a tiny bit.

ArcAngel · 04-08-2009, 05:16 PM

Yea he has the 3.8 DI man he's gonna blow a gasket when I tell him LOL !!!!

04-08-2009, 10:05 AM	#99
justmeron Drives: 2010 camaro Join Date: Nov 2008 Location: Northwest Indiana Posts: 1,259 View My Garage	yes I was referring to the v6. I agree If I had the v8 it would deff only be prem gas. __________________ 2010 2011 Chevrolet Camaro Faded Black Side Vent Highlight Decal Kit Life is not like a box of chocolates, its more like eating a whole jar of jalapenos.... what you do today may burn your ass tomorrow!!!!

04-08-2009, 11:14 AM	#102
ArcAngel Drives: 07 Black Cobalt SS/SC Join Date: Aug 2006 Location: Manalapan-NJ Posts: 2,872	Really that's weird my friend must have been talking out of his ass then LOL he said his CTS Has to have premium and I said that's weird the camaro only needs regular. He was like I don't know that's what I was told LOL __________________ Through HIM you believe in GOD, who raised HIM from the dead and Glorified him..

04-08-2009, 05:16 PM	#112
ArcAngel Drives: 07 Black Cobalt SS/SC Join Date: Aug 2006 Location: Manalapan-NJ Posts: 2,872	Yea he has the 3.8 DI man he's gonna blow a gasket when I tell him LOL !!!! __________________ Through HIM you believe in GOD, who raised HIM from the dead and Glorified him..

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
im ashamed of myself...	shank0668	Off-topic Discussions	9	09-13-2008 09:04 PM
Snowman is heaven bound and down	CamaroSpike23	Off-topic Discussions	12	09-03-2008 02:39 AM

04-08-2009, 10:29 AM	#100
Sorrow Drives: 87 firebird(sbc 406) 05 ram Join Date: Apr 2009 Location: Ohio Posts: 2	Well, I have experience with that level of compression, but not with a direct injection system. However I would assume that one of the reasons for 89 vs 93 octane would be due to the fact that the fuel is directly injected. The cpu is probably tuned for the lower octane's burn rate. Thus it knows when to inject it. With a higher rated fuel it would take longer to completely burn so it would most likely want to inject it sooner or at a higher pressure (if that were possible) One note is Octane does NOT refer to the power in a gas fuel. Both chemicaly produce around the same energy when combustion takes place. Octane is more a resistance to detonation and auto-ignition. Volatility is in reference to the evap point of the fuel, not any relation to the power either. Also being an all aluminum engine, with what appears to be a pent roof design chamber, should also be a massive help with the combustion process. There's alot to dig into here obviously. Thats one of the reason's I'm personally opting toward the v6.

04-08-2009, 11:48 AM	#103
THE EVIL TW1N Banned Drives: 2003 Cobra Convertible Join Date: Feb 2009 Location: CA Posts: 2,925	I thought "regular" was 87 octane.

04-08-2009, 03:44 PM	#109
fierodeletre Drives: 02 WS6 TA, 88 Fiero Formula Join Date: Aug 2008 Location: Utard Posts: 296	I wish Utah thought 87 octane was "regular." Around here 'regular' is 85 octane.

04-08-2009, 05:07 PM	#111
Vash Drives: 00 Blazer Join Date: Aug 2008 Location: Texas Posts: 5,104	Utah is 85? Do they have a Plus grade? use that 85 too low. That's B.S. It's optimized for 87 but the computer can do things with timing to reduce knock but it will gimp your power a tiny bit.