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expiredHappyPixel posted Apr 9, 2025 10:45 AM

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

$54 each

$70

+ Free Shippingat Costco Wholesale
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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 HappyPixel for sharing this deal.

Available:

Editor's Notes

Written by citan359 | Staff
  • This offer is $10 less than the previous +79 Frontpage Deal from September 2024.
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.
  • If you don't have a Costco Warehouse Membership, you can sign-up here

Original Post

Written by HappyPixel
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 HappyPixel for sharing this deal.

Available:

Editor's Notes

Written by citan359 | Staff
  • This offer is $10 less than the previous +79 Frontpage Deal from September 2024.
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.
  • If you don't have a Costco Warehouse Membership, you can sign-up here

Original Post

Written by HappyPixel

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324 Comments

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Apr 9, 2025 12:30 PM
158 Comments
Joined Jul 2011
kancocorpApr 9, 2025 12:30 PM
158 Comments
Unfortunately, Costco doesn't make 5 W 40
1
Apr 9, 2025 12:31 PM
155 Comments
Joined Dec 2008
vuiskoolApr 9, 2025 12:31 PM
155 Comments
Quote from hollowpockets :
Ok.. well go get the engine number and Google it.

Thos is car oil. Small engine oil is typically different. You bought a honda engine, put the right oil in it.

and if you're a new homeowner.. my suggestion is to keep those books. you'll refer to them over time
Pro tip: every known brand manual is found online in PDF format. So you can toss those paper book manuals.
3
Apr 9, 2025 12:32 PM
517 Comments
Joined Nov 2005
nocturnalmerkinApr 9, 2025 12:32 PM
517 Comments
Quote from DealHunterNYC212 :
New homeowner here. I have the toro timemaster and a Ryobi power washer with a Honda engine. Is this good for those? If yes, which one? (I live in NY, if the temperature matters)
The Honda engine will outlive you even with the cheapest of conventional oil changed once every 100 hours. I think they tell you to do the first change early. The water pump seal will likely fail, easy fix just make sure you use the right size socket or pipe to push it in evenly. Source:me LOL. I have the Homelite with Honda GCV160 Honda engine. Given the cheap price of this oil I say go for it on both, can't go wrong. 5-30 is the preferred grade for most small engines, 0W-20 is thinner to promote better fuel economy and may not protect a smaller higher revving engine as well.
Apr 9, 2025 12:34 PM
2 Comments
Joined Dec 2019
NeiladamsApr 9, 2025 12:34 PM
2 Comments
Love this oil. I use it in all of my vehicles.
Apr 9, 2025 12:35 PM
805 Comments
Joined Oct 2012
patrocleApr 9, 2025 12:35 PM
805 Comments

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

Quote from patrocle :
Who does this costco oil? rebranded from where? I normally use the Penzoil 5w-20 Ultra full synthetic for Ram Truck
I guess here is the list where is coming from

page 8 and 9

https://engineoil.api.org/Directo...nyId=10297

Warren Oil
https://www.warrenoil.com/
Made by
4
Apr 9, 2025 12:38 PM
3.7K Comments
Joined Dec 2008
qkumbrApr 9, 2025 12:38 PM
3.7K Comments
Quote from patrocle :
Who does this costco oil? rebranded from where? I normally use the Penzoil 5w-20 Ultra full synthetic for Ram Truck
Manufactured by Highline Warren LLC. I am reading the back of a jug in my garage.
Apr 9, 2025 12:44 PM
39.4K Comments
Joined Nov 2005
Dr. JApr 9, 2025 12:44 PM
39.4K Comments
Quote from DealHunterNYC212 :
New homeowner here. I have the toro timemaster and a Ryobi power washer with a Honda engine. Is this good for those? If yes, which one? (I live in NY, if the temperature matters)
The manual should show various oils with temperature service ranges. Unless you're operating the equipment in a hot environment (e.g. Phoenix) then 5W30 is going to give you your best year-round operation (e.g. when it's really cold, if you need that). Just be aware that small engines don't take a lot of oil so a 4 pack of 5Q is going to last a very very very long time.

I run 5W30 in my JDX530 but that's mostly because I use it to snowblow in the winter so it's a full year machine for me here in CT.

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Apr 9, 2025 12:46 PM
39.4K Comments
Joined Nov 2005
Dr. JApr 9, 2025 12:46 PM
39.4K Comments
Quote from patrocle :
Who does this costco oil? rebranded from where? I normally use the Penzoil 5w-20 Ultra full synthetic for Ram Truck
Warren, who also makes (private labels) oils for a bunch of other brands. Perfectly fine oil.
Apr 9, 2025 12:46 PM
673 Comments
Joined Aug 2013
SobotkaApr 9, 2025 12:46 PM
673 Comments
Quote from DealHunterNYC212 :
New homeowner here. I have the toro timemaster and a Ryobi power washer with a Honda engine. Is this good for those? If yes, which one? (I live in NY, if the temperature matters)

lol read your manuals....
Apr 9, 2025 12:47 PM
14 Comments
Joined Mar 2018
linyang11879Apr 9, 2025 12:47 PM
14 Comments
Quote from anonman44 :
great deal but no 10w-30 Frown
5w-30 also works
2
Apr 9, 2025 12:48 PM
262 Comments
Joined Oct 2019
PabIoApr 9, 2025 12:48 PM
262 Comments
How much do you guys have stocked up ? First time buyer of this oil, long time oil changer
1
Apr 9, 2025 12:51 PM
930 Comments
Joined Sep 2013
chrisaf69Apr 9, 2025 12:51 PM
930 Comments
I change my vehicle that only takes 5.x quarts once a year. Is this oil fine sitting on a shelf for 4-5 years?
Apr 9, 2025 12:53 PM
146 Comments
Joined Nov 2015
stslimited84Apr 9, 2025 12:53 PM
146 Comments
Quote from deezer :
Cheaper per unit than in-warehouse.
Cheaper than warehouse including the current warehouse coupon?
Apr 9, 2025 12:54 PM
624 Comments
Joined Jan 2015

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Apr 9, 2025 12:57 PM
25 Comments
Joined May 2013
skrap1965Apr 9, 2025 12:57 PM
25 Comments
This is a great deal for DIY oil changers.

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