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expiredz4m posted Sep 01, 2023 04:39 PM
expiredz4m posted Sep 01, 2023 04:39 PM

Select Costco Stores: 2-Pack 5-Quart Kirkland Signature Full Synthetic Motor Oil

(In-Warehouse Only)

$31

$39

20% off
Costco Wholesale
134 Comments 68,734 Views
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Deal Details
Select Costco Wholesale Stores (link for reference only) have 2-Pack 5-Quart Kirkland Signature Full Synthetic Motor Oil (various grades) on sale for $30.99. Valid in-warehouse only [warehouse locations]

Thanks to community member z4m for sharing this deal.

Note, availability and pricing may vary by location.

Examples:
  • 2-Pack 5-Quart Kirkland Signature 5W-30 Full Synthetic Motor Oil $30.99
  • 2-Pack 5-Quart Kirkland Signature 5W-20 Full Synthetic Motor Oil $30.99
  • 2-Pack 5-Quart Kirkland Signature 0W-20 Full Synthetic Motor Oil $30.99

Editor's Notes

Written by qwikwit | Staff
  • This price is $0.50 lower per item than this popular Frontpage Deal for 4-Packs w/ free shipping.
  • See the forum thread for deal discussion.

Original Post

Written by z4m
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Select Costco Wholesale Stores (link for reference only) have 2-Pack 5-Quart Kirkland Signature Full Synthetic Motor Oil (various grades) on sale for $30.99. Valid in-warehouse only [warehouse locations]

Thanks to community member z4m for sharing this deal.

Note, availability and pricing may vary by location.

Examples:
  • 2-Pack 5-Quart Kirkland Signature 5W-30 Full Synthetic Motor Oil $30.99
  • 2-Pack 5-Quart Kirkland Signature 5W-20 Full Synthetic Motor Oil $30.99
  • 2-Pack 5-Quart Kirkland Signature 0W-20 Full Synthetic Motor Oil $30.99

Editor's Notes

Written by qwikwit | Staff
  • This price is $0.50 lower per item than this popular Frontpage Deal for 4-Packs w/ free shipping.
  • See the forum thread for deal discussion.

Original Post

Written by z4m

Community Voting

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+75
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Top Comments

PurpleNest2305
433 Posts
98 Reputation
Kirkland motor oils is made by Warren Distribution, a legitimate oil manufacturer that makes many private label motor oils. Oil analyses have shown it has levels of zinc, phosphorous, and moly comparable to quality name-brand motor oils--research on bobistheoilguy.com to learn more. To summarize from an analysis post on BITOG, Kirkland motor oil is "comparable to most any name-brand 5W-30 DEXOS-rated oil".

Anecdotally I've been running it in my wife's 2013 Chevy Equinox (per DEXOS) and my 2005 Lincoln Town Car (ILSAC GF-5 exceeds the Ford spec for the 4.6 V8), and have no complaints.
Archimedes001
771 Posts
347 Reputation
No… Kirkland oil isn't the same as Mobil 1.

Warren distribution doesn't even make lubricants for ExxonMobil.

It is the same as super tech and Amazon basics though. A very basic group 3 synthetic meeting api sp and dexos1 so it's fine for most asian and domestic cars.
Gn0dz
692 Posts
123 Reputation
Kirkland automotive batteries are made by Johnson Controls and Kirkland oil is made by Warren Oil

133 Comments

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Original Poster
Sep 01, 2023 06:47 PM
1,355 Posts
Joined Dec 2008
z4m
Original Poster
Sep 01, 2023 06:47 PM
1,355 Posts
Updated the post with additional details. Bumping up for visibility.
4
Sep 02, 2023 02:30 PM
130 Posts
Joined Sep 2005

This comment has been rated as unhelpful by Slickdeals users.

Sep 02, 2023 04:56 PM
355 Posts
Joined Nov 2016
aholeinthewor1dSep 02, 2023 04:56 PM
355 Posts
Quote from pawcio :
Does anyone know what oil this actually is?
Costco/Kirkland don't manufacture motor oil, so they are basically repackaging someone else's.
Is it Kendall, Penzoil, Mobil, Castrol, Shell, or some Chinese crap they imported?
Also don't be fooled by the "Full Synthetic" label. The standards in the US to meet the "Full Synthetic" grade are so low, it's really not much better than "conventional"...
Most important thing to look for is whether it has been any car manufacturer certified, i.e. BMW LL-01, MB 229.x, VW 507.x etc...

I woudn't put this in my Honda and keep it there for 10k miles, but would do it with Mobil-1, so if you need to change it more frequently, are you really saving any money, even if it's half the price of a good oil?

Having said that, if you have a 20 year old Honda or Toyota, it really doesn't matter...
It's actually good oil though lol
2
Sep 02, 2023 05:11 PM
164 Posts
Joined Oct 2016
watagSep 02, 2023 05:11 PM
164 Posts
whatchu trying to say about my 20 year old Honda bro Stick Out Tongue
Sep 02, 2023 05:13 PM
164 Posts
Joined Oct 2016
watagSep 02, 2023 05:13 PM
164 Posts

Our community has rated this post as helpful. If you agree, why not thank watag

Oh and the consensus with this oil is that's it's made by Warren distribution aka the same oil as Mobil 1. At least that's what the 'oil community' seems to say. Put it in all my cars for over 5 years and they all look new after removing the valve covers.
1
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5
Sep 02, 2023 06:27 PM
145 Posts
Joined Jun 2018
NH-REALGRILLSep 02, 2023 06:27 PM
145 Posts
Anyone use this oil in a modern Subaru Boxer engine? I've gone pretty much exclusive with Mobil1 for years, but at this price, it might be worth the risk
1
5
Sep 02, 2023 06:32 PM
500 Posts
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jameshoodSep 02, 2023 06:32 PM
500 Posts

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Quote from NH-REALGRILL :
Anyone use this oil in a modern Subaru Boxer engine? I've gone pretty much exclusive with Mobil1 for years, but at this price, it might be worth the risk
you are driving a Subaru, not a Porsche or McLaren! And not on the Autobahn with speeds of 150+mph either! So it is all good.
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Sep 02, 2023 07:37 PM
10 Posts
Joined Aug 2016
black_leopold2Sep 02, 2023 07:37 PM
10 Posts
Quote from pawcio :
Does anyone know what oil this actually is?
Costco/Kirkland don't manufacture motor oil, so they are basically repackaging someone else's.
Is it Kendall, Penzoil, Mobil, Castrol, Shell, or some Chinese crap they imported?
Also don't be fooled by the "Full Synthetic" label. The standards in the US to meet the "Full Synthetic" grade are so low, it's really not much better than "conventional"...
Most important thing to look for is whether it has been any car manufacturer certified, i.e. BMW LL-01, MB 229.x, VW 507.x etc...

I woudn't put this in my Honda and keep it there for 10k miles, but would do it with Mobil-1, so if you need to change it more frequently, are you really saving any money, even if it's half the price of a good oil?

Having said that, if you have a 20 year old Honda or Toyota, it really doesn't matter...
I'm putting it in my 2022 IS350 and my 2015 Highlander. I feel like I have similar maybe slightly better temp/rev control with this than Mobil 1.
7
Sep 02, 2023 07:43 PM
172 Posts
Joined May 2019
DealsgenieSep 02, 2023 07:43 PM
172 Posts
Quote from pawcio :
Does anyone know what oil this actually is?
Costco/Kirkland don't manufacture motor oil, so they are basically repackaging someone else's.
Is it Kendall, Penzoil, Mobil, Castrol, Shell, or some Chinese crap they imported?
Also don't be fooled by the "Full Synthetic" label. The standards in the US to meet the "Full Synthetic" grade are so low, it's really not much better than "conventional"...
Most important thing to look for is whether it has been any car manufacturer certified, i.e. BMW LL-01, MB 229.x, VW 507.x etc...

I woudn't put this in my Honda and keep it there for 10k miles, but would do it with Mobil-1, so if you need to change it more frequently, are you really saving any money, even if it's half the price of a good oil?

Having said that, if you have a 20 year old Honda or Toyota, it really doesn't matter...
Just like Costco Kirkland battery is actually Duracell with out the label, Costco Kirkland motor oil is Mobil 1 without the Mobil label. With Costco's store brands, it is moronic to make assumptions about quality based on price.
2
1
14
Sep 02, 2023 08:14 PM
4 Posts
Joined Aug 2021
benne77Sep 02, 2023 08:14 PM
4 Posts
Quote from pawcio :
Does anyone know what oil this actually is?
Costco/Kirkland don't manufacture motor oil, so they are basically repackaging someone else's.
Is it Kendall, Penzoil, Mobil, Castrol, Shell, or some Chinese crap they imported?
Also don't be fooled by the "Full Synthetic" label. The standards in the US to meet the "Full Synthetic" grade are so low, it's really not much better than "conventional"...
Most important thing to look for is whether it has been any car manufacturer certified, i.e. BMW LL-01, MB 229.x, VW 507.x etc...

I woudn't put this in my Honda and keep it there for 10k miles, but would do it with Mobil-1, so if you need to change it more frequently, are you really saving any money, even if it's half the price of a good oil?

Having said that, if you have a 20 year old Honda or Toyota, it really doesn't matter...
I have put 130k miles on my 2018 toyota corolla with this oil and it has been perfect. Change every 8k miles.
Sep 02, 2023 09:59 PM
6,891 Posts
Joined Jul 2011
08CivicSiSep 02, 2023 09:59 PM
6,891 Posts

Our community has rated this post as helpful. If you agree, why not thank 08CivicSi

Quote from pawcio :
Does anyone know what oil this actually is?
Costco/Kirkland don't manufacture motor oil, so they are basically repackaging someone else's.
Is it Kendall, Penzoil, Mobil, Castrol, Shell, or some Chinese crap they imported?
Also don't be fooled by the "Full Synthetic" label. The standards in the US to meet the "Full Synthetic" grade are so low, it's really not much better than "conventional"...
Most important thing to look for is whether it has been any car manufacturer certified, i.e. BMW LL-01, MB 229.x, VW 507.x etc...

I woudn't put this in my Honda and keep it there for 10k miles, but would do it with Mobil-1, so if you need to change it more frequently, are you really saving any money, even if it's half the price of a good oil?

Having said that, if you have a 20 year old Honda or Toyota, it really doesn't matter...laugh out loud
You very quickly just told everyone that you're cluelessLMAO
1
3
2
Sep 02, 2023 10:00 PM
6,891 Posts
Joined Jul 2011
08CivicSiSep 02, 2023 10:00 PM
6,891 Posts

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Quote from black_leopold2 :
I'm putting it in my 2022 IS350 and my 2015 Highlander. I feel like I have similar maybe slightly better temp/rev control with this than Mobil 1.
Lol, you don't. It's in your head.
1
Sep 02, 2023 10:08 PM
433 Posts
Joined Dec 2018
PurpleNest2305Sep 02, 2023 10:08 PM
433 Posts

Our community has rated this post as helpful. If you agree, why not thank PurpleNest2305

Quote from pawcio :
Does anyone know what oil this actually is?
Costco/Kirkland don't manufacture motor oil, so they are basically repackaging someone else's.
Is it Kendall, Penzoil, Mobil, Castrol, Shell, or some Chinese crap they imported?
Also don't be fooled by the "Full Synthetic" label. The standards in the US to meet the "Full Synthetic" grade are so low, it's really not much better than "conventional"...
Most important thing to look for is whether it has been any car manufacturer certified, i.e. BMW LL-01, MB 229.x, VW 507.x etc...

I woudn't put this in my Honda and keep it there for 10k miles, but would do it with Mobil-1, so if you need to change it more frequently, are you really saving any money, even if it's half the price of a good oil?

Having said that, if you have a 20 year old Honda or Toyota, it really doesn't matter...
Kirkland motor oils is made by Warren Distribution, a legitimate oil manufacturer that makes many private label motor oils. Oil analyses have shown it has levels of zinc, phosphorous, and moly comparable to quality name-brand motor oils--research on bobistheoilguy.com to learn more. To summarize from an analysis post on BITOG, Kirkland motor oil is "comparable to most any name-brand 5W-30 DEXOS-rated oil".

Anecdotally I've been running it in my wife's 2013 Chevy Equinox (per DEXOS) and my 2005 Lincoln Town Car (ILSAC GF-5 exceeds the Ford spec for the 4.6 V8), and have no complaints.
4
Sep 02, 2023 10:47 PM
5,797 Posts
Joined Dec 2004
CaleoSep 02, 2023 10:47 PM
5,797 Posts

Our community has rated this post as helpful. If you agree, why not thank Caleo

Quote from pawcio :
Does anyone know what oil this actually is?
Costco/Kirkland don't manufacture motor oil, so they are basically repackaging someone else's.
Is it Kendall, Penzoil, Mobil, Castrol, Shell, or some Chinese crap they imported?
Also don't be fooled by the "Full Synthetic" label. The standards in the US to meet the "Full Synthetic" grade are so low, it's really not much better than "conventional"...
Most important thing to look for is whether it has been any car manufacturer certified, i.e. BMW LL-01, MB 229.x, VW 507.x etc...

I woudn't put this in my Honda and keep it there for 10k miles, but would do it with Mobil-1, so if you need to change it more frequently, are you really saving any money, even if it's half the price of a good oil?

Having said that, if you have a 20 year old Honda or Toyota, it really doesn't matter...
"I don't know anything about this product but I'm going to make assumptions and thread crap anyway"

šŸ™„
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Sep 02, 2023 10:48 PM
771 Posts
Joined Nov 2005
Archimedes001Sep 02, 2023 10:48 PM
771 Posts

Our community has rated this post as helpful. If you agree, why not thank Archimedes001

No… Kirkland oil isn't the same as Mobil 1.

Warren distribution doesn't even make lubricants for ExxonMobil.

It is the same as super tech and Amazon basics though. A very basic group 3 synthetic meeting api sp and dexos1 so it's fine for most asian and domestic cars.
3

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