Is Costco gas considered Top Tier?

YolkyPalky · 11-20-2014, 03:13 PM

Hey E90 Nation,

I normally always use only Shell/Chevron for my M3. However every now and then if I'm in a pinch and am at a Costco I'll fill 'er up there, but that's probably like 1 out of every 100 fills. However today I saw this sign posted above the pumps. Is Costco gas now considered Top Tier just like Shell and/or Chevron?

Flying Ace · 11-20-2014, 03:19 PM

I just noticed the signs as well locally. To claim Top Tier, they are audited by the industry group's independent auditor to ensure they've added the correct amount of detergents in the base stock of gasoline. So the answer is yes, Kirkland gas is now Top Tier.

I think there's still differences between Shell, BP, Chevron, Conoco, etc as their combination of detergents are different, but they all meet the Top Tier basic requirements per the testing procedures.

swartzentruber · 11-20-2014, 06:49 PM

They just became Top Tier earlier this year.

Mvy · 11-20-2014, 07:09 PM

What octane do they offer?

F1Venom · 11-20-2014, 07:16 PM

Absolutely NOT!

gatorfast · 11-20-2014, 09:01 PM

http://www.toptiergas.com/retailers.html

Costco is listed as top tier.

Antonio1988 · 11-20-2014, 09:02 PM

Quote:

Originally Posted by F1Venom

Absolutely NOT!

Well that's assertive. What's your justification?

m3ray · 11-20-2014, 09:03 PM

I guess they spent the money needed to become top tier certified. No longer can we make fun of Costco gas I guess. Plus their hot dogs are delicious.

rabman5 · 11-20-2014, 09:07 PM

Surprised Valero is on the list. I usually avoid them, but I won't anymore

Flying Ace · 11-20-2014, 09:18 PM

Quote:

Originally Posted by m3ray

I guess they spent the money needed to become top tier certified. No longer can we make fun of Costco gas I guess. Plus their hot dogs are delicious.

Pizza too. On a side note, I didn't take you as a guy that'll go for a hot beef injection

Flying Ace · 11-20-2014, 09:19 PM

Quote:

Originally Posted by rabman5

Surprised Valero is on the list. I usually avoid them, but I won't anymore

Just noticed Valero and ARCO too...usually the cheaper options. I'll still stick with Shell and Chevron

m3ray · 11-20-2014, 09:22 PM

Quote:

Originally Posted by Flying Ace

Pizza too. On a side note, I didn't take you as a guy that'll go for a hot beef injection

A real man knows how to handle a weiner in public, now and then

FogCityM3 · 11-20-2014, 09:33 PM

I've filled up with the new Costco gas and logged timing using the BT tool. Everything looked fine and timing appeared to be pulled less than 76, and about the same as Chevron (maybe slightly less), all 91 octane in CA. If it weren't for the lines, I'd fill up with Costco more often.

aus · 11-20-2014, 10:04 PM

Quote:

Originally Posted by Antonio1988

Well that's assertive. What's your justification?

Obviously ignorance.

m3ray · 11-20-2014, 10:05 PM

Quote:

Originally Posted by aus

Obviously ignorance.

Boom, roasted.

Flying Ace · 11-20-2014, 11:43 PM

Quote:

Originally Posted by m3ray

Boom, roasted.

Like them chicken you can buy at Costco?

m3ray · 11-20-2014, 11:48 PM

Quote:

Originally Posted by Flying Ace

Like them chicken you can buy at Costco?

Rupes · 11-21-2014, 06:25 AM

I think the requirements for top tier gas should be re-evaluated. The requirement today is basically if you have xx amount of detergent per gallon, you're considered top tier. Is this really all that matters when determining the best gas? I'm no chemical engineer, but I have to believe the refinement process comes into play too.

Gbiz · 11-21-2014, 07:53 AM

I'm glad to see that Suncor Energy (Sunoco) is on the list, since that's pretty much the only place I will fill up at.

Flying Ace · 11-21-2014, 10:33 AM

Quote:

Originally Posted by got da booze

I'm glad to see that Suncor Energy (Sunoco) is on the list, since that's pretty much the only place I will fill up at.

I use to get Sunoco 95 unleaded in Ohio

YolkyPalky · 11-21-2014, 10:55 AM

If Costco gas is truly Top Tier and pretty much as good as Shell/Chevron, I might start filling up there at all my Costco trips. Currently my regular Shell is about $3.30/Gallon for 91 Premium, Costco was at $3.00 for 91 Premium, so a pretty good price difference per gallon.

UNCbigM · 11-21-2014, 11:26 AM

Interesting... I too might consider going back. My DD for the last several years has been diesel and our local Costco doesn't carry it, so I would only occasionally fill the wife's car there. Now that she has the diesel and I have has cars to choose from I'm going to consider them back in the mix.

11-20-2014, 03:13 PM	#1
YolkyPalky Captain 333 Rep 687 Posts Drives: ‘23 X3MC Dark Graphite Join Date: Jan 2012 Location: San Diego, CA iTrader: (0)	Is Costco gas considered Top Tier? - Look at this Pic. Hey E90 Nation, I normally always use only Shell/Chevron for my M3. However every now and then if I'm in a pinch and am at a Costco I'll fill 'er up there, but that's probably like 1 out of every 100 fills. However today I saw this sign posted above the pumps. Is Costco gas now considered Top Tier just like Shell and/or Chevron? Attached Images
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11-20-2014, 03:19 PM	#2
Flying Ace Lieutenant General 4985 Rep 11,891 Posts Drives: G05 45e, 997.1 & 991.1 GT3s Join Date: Jul 2014 Location: SF, CA iTrader: (5)	I just noticed the signs as well locally. To claim Top Tier, they are audited by the industry group's independent auditor to ensure they've added the correct amount of detergents in the base stock of gasoline. So the answer is yes, Kirkland gas is now Top Tier. I think there's still differences between Shell, BP, Chevron, Conoco, etc as their combination of detergents are different, but they all meet the Top Tier basic requirements per the testing procedures.
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11-20-2014, 06:49 PM	#3
swartzentruber Captain 30 Rep 742 Posts Drives: 2011 E90 M3 Join Date: Oct 2008 Location: Chicago NW suburbs, IL iTrader: (0)	They just became Top Tier earlier this year. __________________ 2011 Jerez Black/Fox Red E90 M3 DCT, ZCP, ZCV, ZCW, ZP2, BMW Apps 2015 Golf R
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11-20-2014, 07:09 PM	#4
Mvy Captain 541 Rep 979 Posts Drives: 2008 E93 M3 Join Date: Nov 2014 Location: GA Peach iTrader: (0)	What octane do they offer? __________________ Harrop Supercharger, BPM Tune, K/W Coil over kit, Stoptek BBK, Magnaflow exhaust, ear to ear grin everytime I drive...
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11-20-2014, 07:16 PM	#5
F1Venom Banned 73 Rep 961 Posts Drives: ZCP E90 M3 Join Date: Apr 2013 Location: USA iTrader: (0)	Absolutely NOT!
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11-20-2014, 09:01 PM	#6
gatorfast Major General 4998 Rep 6,863 Posts Drives: 718 Cayman Join Date: Jan 2008 Location: SoFla iTrader: (4)	http://www.toptiergas.com/retailers.html Costco is listed as top tier.
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11-20-2014, 09:03 PM	#8
m3ray Banned 101 Rep 701 Posts Drives: '09 e92 M3 Join Date: Jun 2014 Location: New York City iTrader: (0)	I guess they spent the money needed to become top tier certified. No longer can we make fun of Costco gas I guess. Plus their hot dogs are delicious.
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11-20-2014, 09:07 PM	#9
rabman5 Captain 113 Rep 686 Posts Drives: none Join Date: Jun 2007 Location: USA iTrader: (6) Garage List 2015 BMW M4 [0.00]	Surprised Valero is on the list. I usually avoid them, but I won't anymore
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11-20-2014, 09:33 PM	#13
FogCityM3 Colonel 499 Rep 2,400 Posts Drives: M3 (E90) & Porsche GT3 RS Join Date: Feb 2012 Location: San Francisco iTrader: (0)	I've filled up with the new Costco gas and logged timing using the BT tool. Everything looked fine and timing appeared to be pulled less than 76, and about the same as Chevron (maybe slightly less), all 91 octane in CA. If it weren't for the lines, I'd fill up with Costco more often.
	Appreciate 0 Quote

11-21-2014, 06:25 AM	#18
Rupes Major 1056 Rep 1,459 Posts Drives: F87 M2 (current), E90 330xi (w Join Date: Apr 2013 Location: Oregon iTrader: (0)	I think the requirements for top tier gas should be re-evaluated. The requirement today is basically if you have xx amount of detergent per gallon, you're considered top tier. Is this really all that matters when determining the best gas? I'm no chemical engineer, but I have to believe the refinement process comes into play too.
	Appreciate 0 Quote

11-21-2014, 07:53 AM	#19
Gbiz Fo Shizzle 77 Rep 500 Posts Drives: . Join Date: Oct 2012 Location: . iTrader: (21)	I'm glad to see that Suncor Energy (Sunoco) is on the list, since that's pretty much the only place I will fill up at.
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11-21-2014, 10:55 AM	#21
YolkyPalky Captain 333 Rep 687 Posts Drives: ‘23 X3MC Dark Graphite Join Date: Jan 2012 Location: San Diego, CA iTrader: (0)	If Costco gas is truly Top Tier and pretty much as good as Shell/Chevron, I might start filling up there at all my Costco trips. Currently my regular Shell is about $3.30/Gallon for 91 Premium, Costco was at $3.00 for 91 Premium, so a pretty good price difference per gallon.
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11-21-2014, 11:26 AM	#22
UNCbigM Private First Class 21 Rep 168 Posts Drives: '16 M3 Join Date: May 2010 Location: Wilmington, NC iTrader: (0)	Interesting... I too might consider going back. My DD for the last several years has been diesel and our local Costco doesn't carry it, so I would only occasionally fill the wife's car there. Now that she has the diesel and I have has cars to choose from I'm going to consider them back in the mix.
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