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Big22 167K Views
Jan 24, 2023 1:33 AM

Costco Members: 2-Pk 5-Qt Kirkland Signature Full Synthetic Motor Oil (various)

$32

$40

20% off
& More + Free S&Hat Costco Wholesale
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Deal Details
Costco Wholesale has for their Members: Select Kirkland Signature Motor Oil on sale listed below for $31.99. Shipping is free.

Thanks to community member Big22 for finding this deal.

Note, in warehouse pricing may be lower than online. Refer to to the forum thread for additional information.

Available:

Editor's Notes

Written by johnny_miller | Staff
  • About this deal:
    • $8 manufacturer's savings is valid 1/23/23 through 1/29/23. While supplies last. Limit 5 per member.
  • Reviews:
    • These 4 motor oil options range from 4.7 - 4.8 out of 5 stars by Costco customers.
No Longer Available:

Original Post

Written by Big22
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Costco Wholesale has for their Members: Select Kirkland Signature Motor Oil on sale listed below for $31.99. Shipping is free.

Thanks to community member Big22 for finding this deal.

Note, in warehouse pricing may be lower than online. Refer to to the forum thread for additional information.

Available:

Editor's Notes

Written by johnny_miller | Staff
  • About this deal:
    • $8 manufacturer's savings is valid 1/23/23 through 1/29/23. While supplies last. Limit 5 per member.
  • Reviews:
    • These 4 motor oil options range from 4.7 - 4.8 out of 5 stars by Costco customers.
No Longer Available:

Original Post

Written by Big22

Community Voting

Deal Score
+258
Good Deal
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Top Comments

paulgoh
692Comments
281Reputation
I would not not hesitate to recommend this oil as it performed extremely well and lasted 15k miles on my camry hybrid, here is the used oil analysis result: Linky [bobistheoilguy.com]

The mobil 1 extended performance oil I used previously didn't perform any better.
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MBZ321
5.5KComments
2.2KReputation
Employee here and I rang many up today. It's only $1 cheaper in-store.
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KraziAzn
712Comments
212Reputation
It is a civic..... It'll probably run on water....
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376 Comments

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Jan 24, 2023 3:22 AM
1.6K Comments
Joined May 2009

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Jan 24, 2023 3:22 AM
2K Comments
Joined Aug 2011
cheebong
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Jan 24, 2023 3:22 AM
2K Comments
Is it okay to mix the "Kirkland Signature 5W-30 Full Synthetic Motor Oil" with my current "Castrol 03057 GTX MAGNATEC 5W-30 Full Synthetic Motor Oil"?
Last edited by cheebong January 23, 2023 at 07:26 PM.
1
Jan 24, 2023 3:27 AM
2.9K Comments
Joined Sep 2011
CrazyheavenJan 24, 2023 3:27 AM
2.9K Comments
Quote from BluePinot View quoted comment :
Wow $8 for 5 quarts is slick. Does that involve a mail-in rebate or instant manufacturer's rebate?
It wasn't instant or mail in when I last did it. I was able to upload pictures of my receipt as proof of purchase.
Jan 24, 2023 3:28 AM
1.2K Comments
Joined Jan 2016
nikoli707Jan 24, 2023 3:28 AM
1.2K Comments

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Quote from cheebong View quoted comment :
Is it okay to mix the 5W-30 with Castrol 03057 GTX MAGNATEC 5W-30 Full Synthetic Motor Oil?
yes. all sae motor oil can be safely mixed. engine failure would be astronomically high if they were not able to mix and had to tear the motor down every time you switch brands or types to clean every trace of residual out of every crack and cranny.
1
Jan 24, 2023 3:28 AM
116 Comments
Joined Dec 2007
Mr.CrowJan 24, 2023 3:28 AM
116 Comments
Quote from cheebong View quoted comment :
Is it okay to mix the "Kirkland Signature 5W-30 Full Synthetic Motor Oil" with my current "Castrol 03057 GTX MAGNATEC 5W-30 Full Synthetic Motor Oil"?
yeah, thats fine.

ordered two boxes of 5w30. i should have 4 oil changes worth with what i already have. or at least three. i wanted to do the oil analysis next time i change but i want that to be on a 5k old oil change and i am not certain what i am at now. it may be closure to 7500 this time. one dude said they did 15k. thats straight crazy. oil is cheep. engines re expensive. and you will just end up with an oil burner if you do that.
Last edited by Mr.Crow January 23, 2023 at 07:31 PM.
1
Jan 24, 2023 3:28 AM
539 Comments
Joined Apr 2005
DanielWJan 24, 2023 3:28 AM
539 Comments
I use the Kirkland oil in my 2 Toyotas for the last couple of years. My wife's 2015 Sienna with 124k miles and my 2008 4Runner with 280k. I change the oil every 5,000 miles and use Toyota filters.
1
Jan 24, 2023 3:34 AM
30 Comments
Joined Nov 2020
D0KH0L1D43Jan 24, 2023 3:34 AM
30 Comments
This is great oil. Project Pharm on YouTube does a comparison of this stuff up against other name brands, and it is a very safe bet for a "store" brand.

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Jan 24, 2023 3:36 AM
712 Comments
Joined Oct 2011
KraziAznJan 24, 2023 3:36 AM
712 Comments
How many of you change your oil every 10k?
Original Poster
Jan 24, 2023 3:41 AM
1.5K Comments
Joined Dec 2007
Big22
Original Poster
Jan 24, 2023 3:41 AM
1.5K Comments
Quote from KraziAzn View quoted comment :
How many of you change your oil every 10k?
I do about 7500-8000 miles
1
Jan 24, 2023 3:44 AM
1.4K Comments
Joined Jan 2009
Devaney1984Jan 24, 2023 3:44 AM
1.4K Comments
Quote from Big22 View quoted comment :
Has it been that long?? Guess I should get a couple boxes
Yup, it was $25 if I remember, I bought 4 boxes and just ran out about a month ago. Time to stock back up, who knows how much it'll be in 2 more years
Jan 24, 2023 3:45 AM
1.4K Comments
Joined Jan 2009
Devaney1984Jan 24, 2023 3:45 AM
1.4K Comments
Quote from KraziAzn View quoted comment :
How many of you change your oil every 10k?
Change ours every 7k or less, since when one of our cars need it at 7k I just go ahead and do the other one since I have everything out already and only adds 5 minutes to the job, other car usually has at least 5k by that time
Jan 24, 2023 3:47 AM
192 Comments
Joined Dec 2007
BluePinotJan 24, 2023 3:47 AM
192 Comments

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Quote from KraziAzn View quoted comment :
How many of you change your oil every 10k?
I got used to taking my car in for servicing back when oil changes were $20. I remember a bit of a price shock when they started jumping up to 50, 60, 70. Lately it's been almost $100 minus $10 coupon. Finally decided that it's worth doing myself.

With this deal, it'll cost less than $20 per oil change (oil+filter) & 20-30 minutes of my time. I can service my own car every 5000mi or 6 months for very cheap.

I bought this quick valve oil plug which comes with a drain hose. Can drain the pan and pour new oil in about 10 minutes. Very convenient.

Votex - Made in USA - M14 x 1.5MM Stainless Steel Quick Valve Oil Drain Plug - Part Number SMQDP001 https://a.co/d/78Q9ApX

I use this oil filter tool to easily unscrew the filter.

Lisle 63600 Oil Filter... https://www.amazon.com/dp/B0002SR...b_ap_share
Last edited by BluePinot January 23, 2023 at 07:52 PM.
2
Jan 24, 2023 3:49 AM
368 Comments
Joined Sep 2017
FigityJan 24, 2023 3:49 AM
368 Comments
Quote from KraziAzn View quoted comment :
How many of you change your oil every 10k?
Regular oil needs to be changed every 3k miles. Full synthetic needs to be changed every 5k miles. People will tell you they do 15,000 mile oil change intervals and have no problems but thats cuz they don't see the pistons building up sludge in the cracks and then their engine pops at 200k-300k miles and they don't come back to brag about how their 15k interval oil changes blew up their engine. Every good mechanic thats repairs engines will tell you that if you want to keep your car as long as possible then synthetic oil changes every 5k miles and transmission fluid every 60k miles for modern fluids and your good to go to 500k miles or even a million if your car doesn't rust before then.
2
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Jan 24, 2023 3:49 AM
814 Comments
Joined Dec 2015
BesserJan 24, 2023 3:49 AM
814 Comments
Has anyone used this oil for an Infiniti G and Q series I have both wondering if this would be good both cars are at 110k and 115k is this at a level of Castrol or valvealine oil?
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Jan 24, 2023 3:56 AM
4.5K Comments
Joined Oct 2004
NCSU2008Jan 24, 2023 3:56 AM
4.5K Comments
You'd think costco would have a large enough contingent if 5w-40 drivers to warrant selling that weight

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