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expired Posted by Arok- • Aug 31, 2024
expired Posted by Arok- • Aug 31, 2024

Select Costco Locations: 2-Pack 5-Qt Kirkland Signature Full Synthetic Motor Oil

(Pricing/Availability May Vary)

$30

$39

23% off
Costco Wholesale
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Deal Details
Select Costco Wholesale Locations has their 2-Pack 5-Quart Kirkland Signature Full Synthetic Motor Oil Bottles (SAE OW-20, 5W-20, or 5W-30) on sale for $29.99 (price taken off at register) valid for in-warehouse purchase only.

Thanks to community member Arok- for finding this deal

Note, product availability/pricing may vary by location. Please check your local warehouse location for details.

Available Weights:
  • 2-Pack 5-Quart Kirkland Signature Full Synthetic Motor Oil Bottles (SAE OW-20) $29.99
  • 2-Pack 5-Quart Kirkland Signature Full Synthetic Motor Oil Bottles (SAE 5W-20) $29.99
  • 2-Pack 5-Quart Kirkland Signature Full Synthetic Motor Oil Bottles (SAE 5W-30) $29.99

Editor's Notes

Written by johnny_miller | Staff
  • This offer matches a +126 Frontpage Deal from April.
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by Arok-
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Select Costco Wholesale Locations has their 2-Pack 5-Quart Kirkland Signature Full Synthetic Motor Oil Bottles (SAE OW-20, 5W-20, or 5W-30) on sale for $29.99 (price taken off at register) valid for in-warehouse purchase only.

Thanks to community member Arok- for finding this deal

Note, product availability/pricing may vary by location. Please check your local warehouse location for details.

Available Weights:
  • 2-Pack 5-Quart Kirkland Signature Full Synthetic Motor Oil Bottles (SAE OW-20) $29.99
  • 2-Pack 5-Quart Kirkland Signature Full Synthetic Motor Oil Bottles (SAE 5W-20) $29.99
  • 2-Pack 5-Quart Kirkland Signature Full Synthetic Motor Oil Bottles (SAE 5W-30) $29.99

Editor's Notes

Written by johnny_miller | Staff
  • This offer matches a +126 Frontpage Deal from April.
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by Arok-

Community Voting

Deal Score
+78
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Top Comments

reaperman
758 Posts
203 Reputation
Project farm did a Blackstone oil analysis and testing on many different oil brands including Kirkland and Supertech. His conclusion was Kirkland and Supertech are basically the same oil and as good as the big boy brands.
sunshine3
388 Posts
88 Reputation
The mobile 1 is only for 6 quarts. The costco one is 10 quarts.
munkle
1653 Posts
303 Reputation
Pretty much any auto parts store will take it for free

88 Comments

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Sep 1, 2024
4,613 Posts
Joined Mar 2010
Sep 1, 2024
firelikeiya
Sep 1, 2024
4,613 Posts
May or may not be an old wives tale at this point but the last I heard is that 0w-20 is superior to 5w-20. 0w-20 can only be made as a 100% synthetic oil while 5w-20 can be a blended oil (and still sold as a pure synthetic). That's one reason I've read in the past as to why some manufacturers went to 0w-20 back in the day when it was hard to get. Mobil 1 supposedly won the ability to sell blended synthetics as pure synthetic which is why they now have different grades of synthetic. Manufacturers who were extending oil changes to 10k miles wanted to ensure only pure synthetic oil was being used and not the partially blended synthetics.
1
2
Sep 1, 2024
219 Posts
Joined Mar 2018
Sep 1, 2024
RicknAustin
Sep 1, 2024
219 Posts
Quote from firelikeiya :
May or may not be an old wives tale at this point but the last I heard is that 0w-20 is superior to 5w-20. 0w-20 can only be made as a 100% synthetic oil while 5w-20 can be a blended oil (and still sold as a pure synthetic). That's one reason I've read in the past as to why some manufacturers went to 0w-20 back in the day when it was hard to get. Mobil 1 supposedly won the ability to sell blended synthetics as pure synthetic which is why they now have different grades of synthetic. Manufacturers who were extending oil changes to 10k miles wanted to ensure only pure synthetic oil was being used and not the partially blended synthetics.
You need to provide a source, there are blends, yes, but ZERO chance Mobil or Pennzoil are lying and selling blend as synthetic, I don't believe that. Too many legit experts would raise holy hell and show the data. I put Mobil One 0w-40 in my MB S550 and run long miles on it, including very hot Texas summer days, in traffic - it needs to be good.
Sep 1, 2024
1,551 Posts
Joined Dec 2010
Sep 1, 2024
av911
Sep 1, 2024
1,551 Posts
Quote from firelikeiya :
May or may not be an old wives tale at this point but the last I heard is that 0w-20 is superior to 5w-20. 0w-20 can only be made as a 100% synthetic oil while 5w-20 can be a blended oil (and still sold as a pure synthetic). That's one reason I've read in the past as to why some manufacturers went to 0w-20 back in the day when it was hard to get. Mobil 1 supposedly won the ability to sell blended synthetics as pure synthetic which is why they now have different grades of synthetic. Manufacturers who were extending oil changes to 10k miles wanted to ensure only pure synthetic oil was being used and not the partially blended synthetics.
You might be referring to Mobil 1 being able to market Group 3 as "fully synthetic", where as Group 4 is the real thing. (It's been awhile since I visited BITOG.)
Sep 1, 2024
758 Posts
Joined Nov 2008
Sep 1, 2024
reaperman
Sep 1, 2024
758 Posts

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

Quote from britdude :
Any difference between this and wally Supertech.
Supertech is cheap and works good in my car
Project farm did a Blackstone oil analysis and testing on many different oil brands including Kirkland and Supertech. His conclusion was Kirkland and Supertech are basically the same oil and as good as the big boy brands.
3
1
Sep 1, 2024
2,490 Posts
Joined Dec 2008
Sep 1, 2024
Marlin1975
Sep 1, 2024
2,490 Posts
Quote from arribasn :
Need 0w-16


0w-20 will work fine. Can even use 5w30 once you hit 80k+ miles.

the 16 and now 8 are for CAFE reasons, not engine needs/design.

<- Mechanic.
1
Sep 1, 2024
2,063 Posts
Joined Jul 2019
Sep 1, 2024
ShushiiT
Sep 1, 2024
2,063 Posts

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

Quote from paulgoh :
Most 0w-20 full synthetic engine oil can easily last 10k, oil like mobile 1 or kirkland can easily last 15k. I don't know what kind of BS is the maintenance book talking about with those lighter weight oils.
older cars and thinner oil will burn with the gasket and leaking more into the combustion

therefore more oil loss at higher ranges so it's a very poor advice to only think of it as 10-15k for every car

still do 5k on synthetic to actually not RUN out of oil or the older the oil the more containments build up which is the whole point of changing oil
1
Sep 1, 2024
70 Posts
Joined Nov 2005
Sep 1, 2024
chunmay
Sep 1, 2024
70 Posts
Quote from Kracker509 :
Was waiting for the mobil 1 rebate this year. Looks like they may have stopped. I suppose I'll make the switch to kirkland
Mobil's rebate is done this year, I just did Royal Purple, it was $10/gal.

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Sep 1, 2024
70 Posts
Joined Nov 2005
Sep 1, 2024
chunmay
Sep 1, 2024
70 Posts
Quote from thegoob143 :
Any slick deals on how to dispose old oil? I'm newb2000
Any nearby Walmart auto center?
1
Sep 1, 2024
4,578 Posts
Joined Feb 2004
Sep 1, 2024
mickey1987
Sep 1, 2024
4,578 Posts
Quote from thegoob143 :
Any slick deals on how to dispose old oil? I'm newb2000
Take it to advanced auto or similar parts stores places you have in your area.
Sep 1, 2024
383 Posts
Joined Nov 2016
Sep 1, 2024
bachelot
Sep 1, 2024
383 Posts
Quote from vjimmy :
5W-50 any brand never goes on sale.....sigh.
yea, for my 2010 porsche cayenne s recommend 5w-40 ... hard to find a good deal on that..!! :/

wonder if i were to switch to a 5w-30 it would make a whole lotta difference in performance or longevity ?
mine is high mileage almost 150k miles.
Sep 1, 2024
1,274 Posts
Joined Sep 2005
Sep 1, 2024
flyingroach
Sep 1, 2024
1,274 Posts
Twice a year oil change when typically family have 2-3 cars easy savings of $300+. Think about how much you earn after tax on 5% cd or Fidelity tbill ETF with $5,000.

I don't really do to save the $. Too many experiences of oil change places even dealer screwed up. This year alone friends and co-workers. Oil filter put on leaking due to didn't notice jeep had old filter gasket come off from oil filter and Valvoline jammed on new one.

Another 2 cranked on drain plug cracked oil pan on 2019 Hyundai that already burns oil and all drained out day later. Honda and separate Hyundai dealer overfilled. Quick change places caught not changing filter.
Who knows what crap oil the dump in and $1 filter when changing you $120. No thanks.
Ramps and hour of my time max is same as time driving to and from places that screw up and kill cars.

Can't do it yourself? Team with a buddy show up have cup of coffee and chat as you both do it using their tools.

Can also just find a good local shop and pay $130 or whatever. Cheaper than new engine and higher car payment.

Many don't mind you bringing filter and oil if you are loyal and actually do repairs they recommend.
Might be a while before you give them work so just be nice to them. It's very tough to survive as repair shop with bad car designs and junk new parts now.

Good cars really don't need brakes or tires for at least 50-60,000 miles. Tie rods, control arms etc usually very long, struts 100,000+. Junk sway bar stabilizers often sooner. Just change and check oil maybe gdi cleaning each year or every few.
1
1
Sep 1, 2024
6,938 Posts
Joined Nov 2010
Sep 1, 2024
MusicShark
Sep 1, 2024
6,938 Posts
Quote from thegoob143 :
Any slick deals on how to dispose old oil? I'm newb2000
Here's a few things recycled oil can be used for:

- Flooring Finish
- Mold oil it helps lubricate molds so they fall easily
- Oil-based lubricant (bike chains and hydraulics)
- Fence stain
1
Pro
Sep 1, 2024
11,219 Posts
Joined Feb 2012
Sep 1, 2024
nottrollin
Pro
Sep 1, 2024
11,219 Posts
Quote from texst :
What's the max oil change interval for this oil?
It depends on your motor and how long you want your engine to last while avoiding major issues.
The car manufacturers' recommended intervals will get the car out of the warranty period of 5 years and 60K to 100K miles. That's all they care about.

But if you want it to last 200K+ , change it more often. $20 for an oil change is LOT cheaper than a new engine.

https://www.youtube.com/watch?v=i...xv&index=3

https://www.youtube.com/watch?v=P...xv&index=5

https://www.youtube.com/watch?v=C...xv&index=7

https://www.youtube.com/watch?v=r...xv&index=8

https://www.youtube.com/watch?v=d...v&index=17

https://www.youtube.com/watch?v=T...xv&index=2

https://www.youtube.com/watch?v=T...xv&index=1
Sep 1, 2024
424 Posts
Joined Dec 2018
Sep 1, 2024
LavenderLake5124
Sep 1, 2024
424 Posts
Quote from ShushiiT :
older cars and thinner oil will burn with the gasket and leaking more into the combustiontherefore more oil loss at higher ranges so it's a very poor advice to only think of it as 10-15k for every carstill do 5k on synthetic to actually not RUN out of oil or the older the oil the more containments build up which is the whole point of changing oil
synthetics are suited for extended use especially when used with larger/extended use filters. My old 2000 Tacoma goes 10k between oil changes without needing to top off
1

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Pro
Sep 1, 2024
452 Posts
Joined Jul 2007
Sep 1, 2024
crimedog
Pro
Sep 1, 2024
452 Posts
Quote from arribasn :
Need 0w-16
Check out the Mobil 1 5qt 3pks at Walmart

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