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

$22.75
$25.24
& More w/ Subscribe & Save
+34 Deal Score
26,485 Views
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 & Price Research

Written by
  • 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
Edited March 10, 2024 at 10:56 PM by
Amazon has Castrol GTX full synthetic for $22.76 when you select Subscribe & Save. Free shipping with Prime or over $35.

5w-20: https://www.amazon.com/dp/B09M978975
0w-20: https://www.amazon.com/gp/product...0DER&psc=1 -Now $24.96
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Created 02-27-2024 at 01:15 PM by Zdhow
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Deal
Score
+34
26,485 Views
$22.75
$25.24
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Featured Comments

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.
Must not know oil.
Kirkland $15 a pop...full syn

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Joined Dec 2008
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> bubble2 80 Posts
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mjawt
02-27-2024 at 09:19 PM.
02-27-2024 at 09:19 PM.
As of right now, I still see the sale price.
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MCnDaHouse
02-27-2024 at 10:12 PM.
02-27-2024 at 10:12 PM.
$33 for me
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triikan
02-27-2024 at 10:20 PM.
02-27-2024 at 10:20 PM.
Is it worth it to pay extra for RTX?
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Joined Oct 2016
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> bubble2 141 Posts
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watag
02-27-2024 at 11:18 PM.
02-27-2024 at 11:18 PM.
Kirkland $15 a pop...full syn
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Zdhow
02-28-2024 at 12:14 AM.
02-28-2024 at 12:14 AM.
5w-20 and 0w-20 still at the sale price. 5w-30 no longer available.
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Joined Nov 2013
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> bubble2 202 Posts
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Zdhow
02-28-2024 at 12:32 AM.
02-28-2024 at 12:32 AM.
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.
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> bubble2 2,260 Posts
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pidge
02-28-2024 at 12:54 AM.
02-28-2024 at 12:54 AM.
Quote from triikan :
Is it worth it to pay extra for RTX?
Yes. Synthetic oil looks so realistic. And the reflections. Oh my.
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Joined May 2011
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Slayeroflight
02-28-2024 at 04:09 AM.
02-28-2024 at 04:09 AM.
Quote from flaxman85 :
Mobil 1 high mileage full syn master race checking in…
Why is this better than other oils?
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Puurrriiii
02-28-2024 at 04:17 AM.
02-28-2024 at 04:17 AM.
Quote from Slayeroflight :
Why is this better than other oils?

They are all about the same. More like just brand preference.
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Joined Jul 2019
total n00blet
> bubble2 1,938 Posts
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ShushiiT
02-28-2024 at 05:09 AM.
02-28-2024 at 05:09 AM.
Quote from pidge :
Yes. Synthetic oil looks so realistic. And the reflections. Oh my.

Path traced oil is where it's at
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METALGEARSOL1D
02-28-2024 at 05:32 AM.
02-28-2024 at 05:32 AM.
Hurr durr ray tracing oil
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JB112
02-28-2024 at 06:06 AM.
02-28-2024 at 06:06 AM.
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.
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