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frontpagemg3 posted Apr 06, 2026 10:31 AM
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frontpagemg3 posted Apr 06, 2026 10:31 AM

Costco Members: 4-Pk 5-Qt Kirkland Signature Full Synthetic Motor Oil (various)

+ Free S&H

$54 each

$70

Costco Wholesale
294 Comments 85,405 Views
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Deal Details
Costco Wholesale has for its Members: 4-Pack 5-Quart Kirkland Signature Full Synthetic Motor Oil (various) for $53.99 each. Shipping is free.

Thanks to community member mg3 for sharing this deal.

Note: Non-Members may purchase but are subject to a 5% surcharge

Available:

Editor's Notes

Written by qwikwit | Staff
  • The sale is valid 4/6/26 through 5/3/26. While supplies last. Limit 5 per member.
  • This offer matches the previous and popular Frontpage Deal from August 2025, which received +203 community votes.
  • If you don't have a Costco Warehouse Membership, you can sign-up here

Original Post

Written by mg3
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Costco Wholesale has for its Members: 4-Pack 5-Quart Kirkland Signature Full Synthetic Motor Oil (various) for $53.99 each. Shipping is free.

Thanks to community member mg3 for sharing this deal.

Note: Non-Members may purchase but are subject to a 5% surcharge

Available:

Editor's Notes

Written by qwikwit | Staff
  • The sale is valid 4/6/26 through 5/3/26. While supplies last. Limit 5 per member.
  • This offer matches the previous and popular Frontpage Deal from August 2025, which received +203 community votes.
  • If you don't have a Costco Warehouse Membership, you can sign-up here

Original Post

Written by mg3

Community Voting

Deal Score
+304
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Top Comments

hmrambling
3593 Posts
2593 Reputation
Click on the warehouse on the bottom of your app. Then click that you want to shop your warehouse.

I'm able to easily see that my warehouse doesn't carry most weights and that I'd need to order it online.
mg3
535 Posts
346 Reputation
It's warren oil, the same people who make supertech. I'm thinking if you are changing every 5000 miles (especially given that it's so cheap to do so with this), it'll be no issues. But obviously, ymmv
Janerl
571 Posts
513 Reputation
Interestingly, from I can see, it's $30 for 2x 5qt in-store so online is actually cheaper. I really like that the Costco app lets you check in-store inventory and prices now.

294 Comments

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Apr 06, 2026 04:03 PM
3,608 Posts
Joined Dec 2008
clinteastwoodApr 06, 2026 04:03 PM
3,608 Posts
Quote from ijamjl :
You're downvoted but I also don't know anything about cars lol. I have a 2018 Chevy volt. Google says this:"The 2018 Chevy Volt uses a 1.5L naturally aspirated (non-turbo) 4-cylinder engine with a timing chain. It requires Dexos1 Gen 2 or Gen 3 (API SP/SN Plus) rated OW-20 oil to prevent low-speed pre-ignition (LSPI). The engine is engineered to run at specific temperatures, making high-quality synthetic oil essential for longevity."Can anyone tell me if this oil is fine for my car? First time trying to change the oil myself!
Yes.
"It requires Dexos1 Gen 2 or Gen 3 (API SP/SN Plus) rated OW-20 oil..."
The 0W-20 in this deal meets this.
Apr 06, 2026 04:05 PM
339 Posts
Joined Jul 2003
JairusApr 06, 2026 04:05 PM
339 Posts
Thanks OP, in for two.
Apr 06, 2026 04:13 PM
1,071 Posts
Joined Feb 2017
theshopper2022Apr 06, 2026 04:13 PM
1,071 Posts
It's full synthetic. Good price, choose the weight and be done with it. It's going to be better oil then what basic oil change you are getting done at jiffy lube.
Apr 06, 2026 04:16 PM
112 Posts
Joined Feb 2018
garyham100Apr 06, 2026 04:16 PM
112 Posts
The Kirkland oil is fine. Tests show the same performance as Walmart's SuperTech and Amazon's synthetic oil...all three are made by the same manufacturer Highline Warren. For those looking for a better deal on a better oil, Walmart has Pennzoil Ultra Platinum 5 qt for 26.97. Buy two and get a 30.00 rebate which comes to 23.95 or 11.97 for each 5 qt jug. Costco 4 pack comes to 13.50 per 5 qt jug. Although Pennzoil Ultra Platinum is a better oil, unless you have a high performance vehicle, it really won't make any difference. And for those against rebates...blah, blah, blah.
1
Apr 06, 2026 04:18 PM
2,006 Posts
Joined Nov 2010
testshootApr 06, 2026 04:18 PM
2,006 Posts
Some of you are Wix only guys, but Purolator One is on sale for $2.75, cheaper on S&S. https://www.amazon.com/Purolator-...000E8XFOQ/

When I was young (1960s) Purolator was the go to brand before Fram became popular, then Wix.
Apr 06, 2026 04:25 PM
250 Posts
Joined Nov 2009
Babylicious_TouchMeApr 06, 2026 04:25 PM
250 Posts
Quote from Stevo21 :
Bought a 4 pk last month, deff just bought 2 so I can return the one from last month
OMG... this is so petty and such a waste
Apr 06, 2026 04:26 PM
197 Posts
Joined Nov 2015
Stevo21Apr 06, 2026 04:26 PM
197 Posts
Quote from Babylicious_TouchMe :
OMG... this is so petty and such a waste
No I wrote it incorrectly lol i'm not returning used oil. I re-bought it so that I can return the new oil with the old receipt because the price dropped. I can see why it was downvoted now. I don't do that return used shit that some people do
1

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Apr 06, 2026 04:34 PM
1,344 Posts
Joined Oct 2011
siddmonApr 06, 2026 04:34 PM
1,344 Posts
How often should I be changing the oil if the car is driven less than 5k miles a year?

Does the oil in the bottle expire?
Apr 06, 2026 04:39 PM
48 Posts
Joined Apr 2018
leiweiyenApr 06, 2026 04:39 PM
48 Posts
Quote from ph1aak :
Can you expand on this further? The 5W-30 product says it's good in engines that call for API SP, SN PLUS, SN, SL and ILSAC GF-4A, GF-5, GF-4. The manual for my 2021 CX-9 turbo says I need to use API SM/SN or ILSAC GF-IV/GF-V. Wouldn't I be okay to use this?
Yes you would. Meets/exceeds specs for gf-4/5 and SN
Apr 06, 2026 04:40 PM
132 Posts
Joined Jun 2023
ZukmeisterApr 06, 2026 04:40 PM
132 Posts
I still have 2 from last time but oh well, lets get more going... it wont go bad
Apr 06, 2026 04:41 PM
878 Posts
Joined Aug 2003
vivekApr 06, 2026 04:41 PM
878 Posts
Quote from Hat-Trick :
Oddly, I'm in San Diego area with lots of Costco's and none of the ones I checked with the app show ANY results for "motor oil". I wonder if they blocked results or the warehouses really stopped carrying motor oil (doubtful)?
same for me here in NJ but I changed the search string it popped up. but don't have too many choices like online and 2x5qt for 29.99
Apr 06, 2026 04:42 PM
878 Posts
Joined Aug 2003
vivekApr 06, 2026 04:42 PM
878 Posts
Quote from j4j :
my 2025 Sienna oil are extremely black after 5k, even though Its recommended 10k, so I did it myself anyway every 5k.
carecarenut on youtube , who worked for toyota dealerships, says it is unwise to drag it after 5k miles.
2
Apr 06, 2026 04:52 PM
571 Posts
Joined May 2007
JanerlApr 06, 2026 04:52 PM
571 Posts
Quote from Hat-Trick :
Oddly, I'm in San Diego area with lots of Costco's and none of the ones I checked with the app show ANY results for "motor oil". I wonder if they blocked results or the warehouses really stopped carrying motor oil (doubtful)?
I think it's just because the search is not very smart - it only does exact text matches, and the title doesn't have "motor oil" (even though it's on the bottle). I searched "synthetic" to check, and my area only had 0w-20 and 5w-30 in-store.
Apr 06, 2026 04:56 PM
146 Posts
Joined May 2020
ArtewaApr 06, 2026 04:56 PM
146 Posts
Quote from kozg :
The consensus seems to be 5 years. Oil is fine but the additives may start to break down.
That is a good answer. If I may add oil manufactures come with better formulations every few years so hording motor oil for more than 4-5 years does not make any sense. Also, I do not see any price increases over past few years.

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Apr 06, 2026 05:14 PM
3,505 Posts
Joined Nov 2011
DQueApr 06, 2026 05:14 PM
3,505 Posts
Quote from siddmon :
How often should I be changing the oil if the car is driven less than 5k miles a year?

Does the oil in the bottle expire?
Regardless of how many or little miles one puts on a car, change that used old oil at least once annually! Once exposed to high heat in the engine, that oil is oxidized.
1

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