View Poll Results: Premium or Regular Fuel?
Premium - Nothing but the best for my Garage Queen.
247
93.92%
Regular - I'm sure everything will be fine.
9
3.42%
Midgrade - meh
4
1.52%
Either/Any - I'd like to put High Test in her; but for whatever reason, t
3
1.14%
Voters: 263. You may not vote on this poll
Premium or Regular Gasoline
Race Director
Joined: Jul 2007
Posts: 18,681
Likes: 47
From: Reno is so close to Hell you can see Sparks , State Of Confusion
St. Jude Donor '12-'13-'14
I run the HiTest stuff myself and my car isn't a garage queen, Premium is only a few bucks more a tank full, Why not?
I only use Chevron unless I have no choice then it is Texaco.
I only use Chevron unless I have no choice then it is Texaco.
Pro
Joined: Aug 2003
Posts: 630
Likes: 81
From: VA
I have only used Shell 93 in my vette.
I will add my Lexus is my DD and it also recommends 93. However, I only use 87 over 44K miles and everything runs fine. If it does not knock, it does not matter.
I will add my Lexus is my DD and it also recommends 93. However, I only use 87 over 44K miles and everything runs fine. If it does not knock, it does not matter.
Last edited by McRCN; Jun 9, 2010 at 12:04 AM.
Burning Brakes
Joined: Oct 2007
Posts: 790
Likes: 0
From: Sebastian Sunshine
I use the 93 and ONCE in awhile when i feel rich i will fill up with the 100 but the manual states that the car will run fine with the mid grade 89 its only a small block 8 5.7 no different then they old 1969 350/400 camaro's which ran fine on reg..
Administrator
Joined: Mar 2001
Posts: 368,390
Likes: 24,791
From: In a parallel universe. Currently own 2014 Stingray Coupe.
C7 of the Year - Modified Finalist 2021
MO Events Coordinator
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St. Jude Donor '03 thru '26
NCM Sinkhole Donor
CI 5, 8 & 11 Veteran
I put 91 octane premium in mine - highest we have in town.
Le Mans Master
Joined: Jul 2009
Posts: 9,526
Likes: 12
From: Los Angeles California
Are you kidding? Anything with 10:1 compression or higher should be on a minimum of 91. I have an LS6 which is 10.5:1. I didn't put anything less than 91 in my LT1, and I certainly wouldn't do that to my LS6.
People who put less than premium in their LSx cars aren't all that concerned with the longevity of their engines.
People who put less than premium in their LSx cars aren't all that concerned with the longevity of their engines.
Pro
Joined: Nov 2005
Posts: 656
Likes: 5
From: McAlester Oklahoma
91 from Shell, but it is 10% ethanol here in town. The 91 at the Sinclair is 100% gas. So I usually use the Sinclair unless I am out of town and can find 100% gas at a Shell station. I have a feeling though when Shell no longer sponsers Harvick at the end of this year, I wont be using Shell anymore...! LOL!!
Other than that, we only have a Kum & Go, I dont use their gas, EZ-Mart, dont use theirs either. Not much to choose from in good ole McAlester, OK.
Other than that, we only have a Kum & Go, I dont use their gas, EZ-Mart, dont use theirs either. Not much to choose from in good ole McAlester, OK.
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Burning Brakes
Joined: Aug 2005
Posts: 798
Likes: 2
From: Notorious Miami sunny south florida
I run anything and my car doesn't care either I run tecron and some injector cleaner now and then replace the fuel fiter when you should and haven't had any problems at all 76k
Safety Car
Joined: Jan 2007
Posts: 4,225
Likes: 0
From: The Great Truth: "There ain't no free lunch"
St. Jude Donor '08-'09-'10-'11
Haven't seen one of these in a while....
93 Chevron in the Vette----Regular in the truck...........I'll save the 3 or 4 dollars at the restaurant by getting a cheaper meal......
93 Chevron in the Vette----Regular in the truck...........I'll save the 3 or 4 dollars at the restaurant by getting a cheaper meal......
Tech Contributor
Joined: Jan 2004
Posts: 20,030
Likes: 289
From: Wylie TX --> Less is More, except under the hood !
My car is specifically "tuned" for 93, and with a >11.1 compression ratio (milled 59cc AFR heads) I don't want to find out what happens running anything else.
Toque
Toque
Melting Slicks
Joined: May 2008
Posts: 2,977
Likes: 0
From: Mansfield, Ohio
St. Jude Donor '08-'09-'10-'11, '14
93....I have put 87 in it one time when I was in BFE, KY and that was the only options. Put under 6 gallons in it to get me to the next part of BFE, KY.
Le Mans Master
Joined: Jul 2009
Posts: 9,526
Likes: 12
From: Los Angeles California
91 from Shell, but it is 10% ethanol here in town. The 91 at the Sinclair is 100% gas. So I usually use the Sinclair unless I am out of town and can find 100% gas at a Shell station. I have a feeling though when Shell no longer sponsers Harvick at the end of this year, I wont be using Shell anymore...! LOL!!
Other than that, we only have a Kum & Go, I dont use their gas, EZ-Mart, dont use theirs either. Not much to choose from in good ole McAlester, OK.
Other than that, we only have a Kum & Go, I dont use their gas, EZ-Mart, dont use theirs either. Not much to choose from in good ole McAlester, OK.
You'll see a drop in mileage due to that 10%, but that's the only draw back from the Ethanol.
Team Owner
Joined: Sep 2002
Posts: 30,609
Likes: 4,619
From: Bonita Springs, Florida
I put 93 octane in mine. According to the owners manual, 91 octane or higher must be used. Engine knock is very bad for an engine and will cause severe engine damage over time which will by far outweigh any negligible savings realized from a 10 cent per gallon price difference. Besides the computer will retard the timing and cause a drop in fuel economy.
Le Mans Master
Joined: Jul 2009
Posts: 9,526
Likes: 12
From: Los Angeles California
The difference is less than $2 per fill up. You spend more than that on junk food. If you don't think your car is worth $2 per fill up, you should sell your car and get something junky and crappy.
Instructor
Joined: Apr 2010
Posts: 121
Likes: 0