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frontpage Posted by Zdhow • Feb 27, 2024
frontpage Posted by Zdhow • Feb 27, 2024

5-Qt Castrol GTX Full Synthetic Motor Oil (5W-20)

& More w/ Subscribe & Save

$23

$25

8% off
Amazon
65 Comments 30,033 Views
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Deal Details
Amazon has 5-Qt Castrol GTX Full Synthetic Motor Oil (5W-20) for $23.96 - 5% Subscribe & Save discount = $22.76. Shipping is free with Amazon Prime or on orders $35+.

Amazon also has 5-Qt Castrol GTX Full Synthetic Motor Oil (0W-20) for $26.27 - 5% Subscribe & Save discount = $22.76 -> now $24.96. Shipping is free with Amazon Prime or on orders $35+.

Thanks to Community Member Zdhow for finding this deal.

Details:
  • Full synthetic formula provides thermal and oxidation stability
  • Superior wear protection on critical engine parts
  • 6X better wear protection than industry standards, as measured in the latest Sequence IVA test
Note: You may cancel your Subscribe & Save subscription any time after your order ships.

Editor's Notes

Written by RazorConcepts
  • About this Product:
    • This is rated 4.8 out of 5 stars based on over 4,000 ratings at Amazon.
  • About this Store:
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by Zdhow
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Amazon has 5-Qt Castrol GTX Full Synthetic Motor Oil (5W-20) for $23.96 - 5% Subscribe & Save discount = $22.76. Shipping is free with Amazon Prime or on orders $35+.

Amazon also has 5-Qt Castrol GTX Full Synthetic Motor Oil (0W-20) for $26.27 - 5% Subscribe & Save discount = $22.76 -> now $24.96. Shipping is free with Amazon Prime or on orders $35+.

Thanks to Community Member Zdhow for finding this deal.

Details:
  • Full synthetic formula provides thermal and oxidation stability
  • Superior wear protection on critical engine parts
  • 6X better wear protection than industry standards, as measured in the latest Sequence IVA test
Note: You may cancel your Subscribe & Save subscription any time after your order ships.

Editor's Notes

Written by RazorConcepts
  • About this Product:
    • This is rated 4.8 out of 5 stars based on over 4,000 ratings at Amazon.
  • About this Store:
  • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.

Original Post

Written by Zdhow

Community Voting

Deal Score
+34
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Top Comments

Zdhow
205 Posts
319 Reputation
Kirkland is currently $20 for a 5qt jug and you have to buy at least 2. Furthermore, as discussed many times on SD, Kirkland motor oil is manufactured by HighlineWarren. This is the same oil as Walmart's in house brand, Supertech, which goes for $19.

Some folks prefer a Castrol, Mobile, Pennzoil… etc. I'm not saying these brands are any better than HighlineWarren, but if you compare the material safety data sheets, some of them have a more robust additive package and/or use a higher quality base oil.

At the end of the day it's your choice what you put into your car. To each their own.
TaskMaster
2533 Posts
596 Reputation
Must not know oil.
watag
164 Posts
14 Reputation
Kirkland $15 a pop...full syn

64 Comments

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Feb 28, 2024
101 Posts
Joined Dec 2008
Feb 28, 2024
mjawt
Feb 28, 2024
101 Posts
As of right now, I still see the sale price.
Feb 28, 2024
809 Posts
Joined May 2008
Feb 28, 2024
MCnDaHouse
Feb 28, 2024
809 Posts
$33 for me
Feb 28, 2024
141 Posts
Joined Aug 2007
Feb 28, 2024
triikan
Feb 28, 2024
141 Posts
Is it worth it to pay extra for RTX?
1
1
Feb 28, 2024
164 Posts
Joined Oct 2016
Feb 28, 2024
watag
Feb 28, 2024
164 Posts
Kirkland $15 a pop...full syn
3
Original Poster
Feb 28, 2024
205 Posts
Joined Nov 2013
Feb 28, 2024
Zdhow
Original Poster
Feb 28, 2024
205 Posts
5w-20 and 0w-20 still at the sale price. 5w-30 no longer available.
Original Poster
Feb 28, 2024
205 Posts
Joined Nov 2013
Feb 28, 2024
Zdhow
Original Poster
Feb 28, 2024
205 Posts
Quote from watag :
Kirkland $15 a pop...full syn
Kirkland is currently $20 for a 5qt jug and you have to buy at least 2. Furthermore, as discussed many times on SD, Kirkland motor oil is manufactured by HighlineWarren. This is the same oil as Walmart's in house brand, Supertech, which goes for $19.

Some folks prefer a Castrol, Mobile, Pennzoil… etc. I'm not saying these brands are any better than HighlineWarren, but if you compare the material safety data sheets, some of them have a more robust additive package and/or use a higher quality base oil.

At the end of the day it's your choice what you put into your car. To each their own.
2
Feb 28, 2024
2,339 Posts
Joined Oct 2006
Feb 28, 2024
pidge
Feb 28, 2024
2,339 Posts
Quote from triikan :
Is it worth it to pay extra for RTX?
Yes. Synthetic oil looks so realistic. And the reflections. Oh my.
8
5

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Feb 28, 2024
580 Posts
Joined Feb 2008

This comment has been rated as unhelpful by Slickdeals users.

Pro
Feb 28, 2024
226 Posts
Joined May 2011
Feb 28, 2024
Slayeroflight
Pro
Feb 28, 2024
226 Posts
Quote from flaxman85 :
Mobil 1 high mileage full syn master race checking in…
Why is this better than other oils?
Feb 28, 2024
145 Posts
Joined Aug 2018
Feb 28, 2024
Puurrriiii
Feb 28, 2024
145 Posts
Quote from Slayeroflight :
Why is this better than other oils?
They are all about the same. More like just brand preference.
1
Feb 28, 2024
2,062 Posts
Joined Jul 2019
Feb 28, 2024
ShushiiT
Feb 28, 2024
2,062 Posts
Quote from pidge :
Yes. Synthetic oil looks so realistic. And the reflections. Oh my.
Path traced oil is where it's at
1
Feb 28, 2024
58 Posts
Joined Nov 2023
Feb 28, 2024
METALGEARSOL1D
Feb 28, 2024
58 Posts
Hurr durr ray tracing oil
2
Feb 28, 2024
297 Posts
Joined Sep 2018
Feb 28, 2024
JB112
Feb 28, 2024
297 Posts
Is this a step down from Castrol's Syntec brand? I assume Castrol is making synthetics for different price points like Pennzoil and Mobil do.

Perfectly fine for most people.
Feb 28, 2024
54 Posts
Joined Apr 2010
Feb 28, 2024
SolaScriptura
Feb 28, 2024
54 Posts
I just bought one of each (0W-20 & 4W-20). HOWEVER, I did so even though I know from experience that Amazon does a miserable job of shipping heavy jugs of stuff alongside delicate items, ESPECIALLY with a monthly Subscribe & Save order.
I will not be at all surprised if a 5qt container crushes my windshield wiper blade or my package of K-cups.
I'm such a fool, but at least I'm warning you ... think twice before being foolish, too.
1

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Feb 28, 2024
612 Posts
Joined Feb 2014

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