Grade of fuel - Page 3 - Camaro5 Chevy Camaro Forum / Camaro ZL1, SS and V6 Forums

TommyTSquared · 02-13-2010, 03:15 PM

Quote:

Originally Posted by Ravirn

Depends on where you live. The higher in altitude you go, the less compression your engine has. The need for "really high" octane goes down the higher up you go.

Once you cross over the 3000' mark or so, 91 octane is AOK. No knocking or pinging whatsoever. Try using OVER 93 octane where I live and good luck starting your car in the morning.

Well aren't you just a smarty-pants!!! I figured it had to do with the altitude, but wasn't really sure EXACTLY why up here (above 3000') we only have 91 and down south around sea level we have 93.

Ravirn · 02-13-2010, 03:17 PM

Quote:

Originally Posted by TommyTSquared

Well aren't you just a smarty-pants!!! I figured it had to do with the altitude, but wasn't really sure EXACTLY why up here (above 3000') we only have 91 and down south around sea level we have 93.

I noticed this a few years ago and started asking around about WHY we never have 93 around here. I ended up speaking to a chemical engineer in the oil fields about it and he walked me through it.

The funny part is, you can tell when you're coming "down from the mountain" when you start seeing 93 popping up at gas stations everywhere.

2ndgenz28 · 02-13-2010, 03:28 PM

Gas station in a said area will have the fuel adjusted right for it, 93 at a 3000ft station would not be the same 93 at a sea lvl station.

The only time you need to consider that is when travling, it comes up allot on motorcycle websites as most are still carbs and your tune and where you buy your gas can make for a crappy ride in places.

A discovery show once said there was over 300 different blends of gas used in the US.

---

And yep SI its nice to get some racing fuel from time to time for no other reason then to add that smell as it only takes a few gallons to make it all smell that way out the pipe.

nyycamarogirl · 02-13-2010, 04:26 PM

What about in the v6s? What are you guys using?

shad2009 · 02-13-2010, 06:09 PM

Quote:

Originally Posted by PQ

Well, the C5 term is Idiot.

I kno im late, but stop tryna one up me PQ lol

shad2009 · 02-13-2010, 06:10 PM

Quote:

Originally Posted by nyycamarogirl

What about in the v6s? What are you guys using?

I might use one grade up from regular, but i'll only fill up at a shell gas station

PQ · 02-13-2010, 06:16 PM

Quote:

Originally Posted by shad2009

I kno im late, but stop tryna one up me PQ lol

n!ght r!der · 02-13-2010, 06:19 PM

Quote:

Originally Posted by IndyDave

I like Shells gas as well, but,the Tuesday thing must be only in Ill. Nothing like that in Indiana??? Anywhere else?

It's thursdays in maryland

IndyDave · 02-14-2010, 02:44 PM

Sounds like I need to speak to "The commissioner of Gasoline" for Indiana!!

Phantom.5SS · 02-14-2010, 06:30 PM

One more thing to consider. Here in NY its 10% or HIGHER ethanol in the fuel. Limited stations have Eth free gas and we pay more for it (you would think it would be less-----Rip off artists), My 2002 T/A ran like crap on the ethanol stuff, Then I upgraded. Big difference so thats all I run in the Camaro...93 No Ethanol------$4.00 a gallon.

mfr1950 · 02-14-2010, 06:53 PM

Quote:

Originally Posted by nyycamarogirl

What about in the v6s? What are you guys using?

Use 87 octane only, I ran a couple of tanks of 89 and didn't notice any difference,except the exhaust tips were black with carbon....

13 ZL1 · 02-14-2010, 08:14 PM

Quote:

Originally Posted by Downwithopp

Sadly we only have 91 out here being the highest :(.

You Cali guys might want to look around. I found a no name station by my house that has 100 and 110 at the pumps. The 110 nozzle does not fit the fill pipe but the 100 one does. I put 4 gallons of 100 in and then topped off with 91.

Bogey99 · 02-15-2010, 04:15 PM

I found a place that has 100 at the pump too. A previously mentioned by others, would running a few gallons of it be the practical thing to do or can you run a full tank of it? I guess my question would be "Is it safe to run a tank of that stuff every once in a while"?

pkauf · 02-15-2010, 05:17 PM

Quote:

Originally Posted by Xander

What octane fuel do you guys use?

Since you live in McKinney, you probably bought from El Dorado - and those guys are idiots. They were the ones who wouldn't sell me a car (2 months ago) unless I agreed to over sticker. Went to Huffines in plano, and ordered a car for MSRP minus CU discount. I will never go near that place again . . . Losers.

02-14-2010, 02:44 PM	#37
IndyDave Drives: '10 Camaro 2LT RS Join Date: Jan 2010 Location: Indianapolis Posts: 715	Sounds like I need to speak to "The commissioner of Gasoline" for Indiana!! __________________ Black 2LT, RS package, Polished Wheels,Hurst Short Throw MRT V2 Exhaust, Injen CAI, Silver Rally Stripes, Sun Roof Heritage Grille, 30% Window Tint, Splash Guards

02-14-2010, 06:30 PM	#38
Phantom.5SS Hell yeah I'm Guilty..... Drives: 2010 2-SS ABM NON-RS Join Date: Nov 2009 Location: Colonie, NY Posts: 1,223 View My Garage	One more thing to consider. Here in NY its 10% or HIGHER ethanol in the fuel. Limited stations have Eth free gas and we pay more for it (you would think it would be less-----Rip off artists), My 2002 T/A ran like crap on the ethanol stuff, Then I upgraded. Big difference so thats all I run in the Camaro...93 No Ethanol------$4.00 a gallon. __________________

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02-13-2010, 03:28 PM	#31
2ndgenz28 Thread Killer Drives: All Black Join Date: Aug 2009 Location: NWO Toledo Area Posts: 4,720	Gas station in a said area will have the fuel adjusted right for it, 93 at a 3000ft station would not be the same 93 at a sea lvl station. The only time you need to consider that is when travling, it comes up allot on motorcycle websites as most are still carbs and your tune and where you buy your gas can make for a crappy ride in places. A discovery show once said there was over 300 different blends of gas used in the US. --- And yep SI its nice to get some racing fuel from time to time for no other reason then to add that smell as it only takes a few gallons to make it all smell that way out the pipe.

02-13-2010, 04:26 PM	#32
nyycamarogirl Camaro Girl Drives: 2010 Camaro LS, SIM M6, 315hp Join Date: Nov 2009 Location: Philly/South Jersey & Cville, VA Posts: 138 View My Garage	What about in the v6s? What are you guys using?

02-15-2010, 04:15 PM	#41
Bogey99 Drives: 2013 ZL1 Black M6 Join Date: Nov 2009 Location: CA Posts: 102	I found a place that has 100 at the pump too. A previously mentioned by others, would running a few gallons of it be the practical thing to do or can you run a full tank of it? I guess my question would be "Is it safe to run a tank of that stuff every once in a while"?