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expiredZdhow posted Feb 27, 2024 9:15 PM

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

$23

$25

8% off
& More w/ Subscribe & Saveat Amazon
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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
Good Deal
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64 Comments

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Feb 28, 2024 2:44 PM
2.5K Comments
Joined Sep 2006
TaskMasterFeb 28, 2024 2:44 PM
2.5K Comments
Quote from nuy6n6nn :
Must hate your car.
Must not know oil.
Feb 28, 2024 2:51 PM
1.3K Comments
Joined Feb 2014

This comment has been rated as unhelpful by Slickdeals users.

Feb 28, 2024 3:02 PM
496 Comments
Joined Oct 2010
NessismFeb 28, 2024 3:02 PM
496 Comments
Oil threads are so much fun! Lots of entertainment value reading comments from people with strong opinions, that may or may not have technical substantiation supporting them. I will say that the oil manufacturers are fueling much of the misinformation; it seems that each manufacturer offers multiple products that you have to be a scientist to tell apart. Castrol GTX synthetic, Edge synthetic, Edge Extended Performance, Edge Euro, Edge High Mileage, blah, blah, blah. Personally, I'm butt hurt over Castrol discontinuing GTX Magnatec. I was convinced this was the best oil ever (just kidding). I feel like my girlfriend just dumped me...

Bob Is The Oil Guy is the way to cut through the BS. Go read oil analysis threads, focusing on which ones show the least metal particles in the oil. That's where the rubber hits the road.

BTW, the Warren oils typically test very well. LOL over people bashing their oils just because they are cheap.
Last edited by Nessism February 28, 2024 at 07:04 AM.
Feb 28, 2024 3:03 PM
325 Comments
Joined Jun 2013
Paul33570Feb 28, 2024 3:03 PM
325 Comments
Someone doesn't understand that gas all comes from the same place. You need to do a little research brother. It's just the chemicals they put in the gas that make it their brand.




Quote from nuy6n6nn :
I know plenty. You can tell yourself whatever myths you want as you pour dollar store quality oil into your car.

Warren oils sucks. Always amazes me when people try to cheap on gas and oil in their 40k+ dollar vehicle.

Regardless this thread is about Castrol, which is a decent enough oil and worth $22.
Feb 28, 2024 3:07 PM
1.3K Comments
Joined Feb 2014

This comment has been rated as unhelpful by Slickdeals users.

Feb 28, 2024 3:35 PM
496 Comments
Joined Oct 2010
NessismFeb 28, 2024 3:35 PM
496 Comments
As long as the gas qualifies under the "Top Tier" standard, and most does, you can use it without concern.
Feb 28, 2024 3:39 PM
4.2K Comments
Joined Apr 2015
SeanD1497Feb 28, 2024 3:39 PM
4.2K Comments
Quote from nuy6n6nn :
I know plenty. You can tell yourself whatever myths you want as you pour dollar store quality oil into your car.

Warren oils sucks. Always amazes me when people try to cheap on gas and oil in their 40k+ dollar vehicle.

Regardless this thread is about Castrol, which is a decent enough oil and worth $22.
You've obviously never seen bobistheoilguy.com. Many people there who are way more plugged into the oil and car industries and smarter than me, and obviously you. You sound like some geezer who is basing your opinions (that's what your info is) on anecdotes and occurrences from the 1970's. You do you, but you can go away and be foolish rather than spouting misinformation backed by nothing here.

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Feb 28, 2024 3:43 PM
4.2K Comments
Joined Apr 2015
SeanD1497Feb 28, 2024 3:43 PM
4.2K Comments
Quote from triikan :
Is it worth it to pay extra for RTX?
Assuming integrated graphics won't cut it for your gaming needs (the current generation of integrated graphics really isn't bad otherwise), then something from the Nvidia RTX line would be a good choice, yes. There are still plenty of AMD fans around, too, but RTX-whatever is a pretty safe, no-brainer go-to choice.

I would not use Castrol GTX in a computer though, even if you go with some sort of oil cooling solution, probably need something lighter and without the automotive-specific additives. But they make a fine oil and I've used their products off and on for many years. These days, I'm pretty convinced that cheap oil, paired with a quality filter and changed at recommended intervals (either the manufacturer's or based on actual real world data after lab testing, which is cheap), is absolutely fine for the vast majority of applications.
Last edited by SeanD1497 February 28, 2024 at 07:47 AM.
2
Feb 28, 2024 3:47 PM
166 Comments
Joined Oct 2016
watagFeb 28, 2024 3:47 PM
166 Comments
Quote from nuy6n6nn :
I know plenty. You can tell yourself whatever myths you want as you pour dollar store quality oil into your car.

Warren oils sucks. Always amazes me when people try to cheap on gas and oil in their 40k+ dollar vehicle.

Regardless this thread is about Castrol, which is a decent enough oil and worth $22.
Warren oil sucks? Source? Genuinely curious because from the quick research I've done that is far from true.

Assuming I'd spend 40k+ on a vehicle or most of anyone on SlickDeals is pretty funny too.

Yes Castrol is good enough for most normal use, just like SuperTech, Kirkland, etc. Just use a good filter and change regularly.

PS Costco puts it on sale often for 30.99 aka 15.50 per 5qt jug. Used it in all 3 of my cars for years no prob, internals look super clean. It's Dexos Gen3 rated, good enough for me. Just offering an alternative that's cheaper, that's all.
Feb 28, 2024 3:52 PM
4.2K Comments
Joined Apr 2015
SeanD1497Feb 28, 2024 3:52 PM
4.2K Comments
Quote from watag :
Warren oil sucks? Source? Genuinely curious because from the quick research I've done that is far from true.

Assuming I'd spend 40k+ on a vehicle or most of anyone on SlickDeals is pretty funny too.

Yes Castrol is good enough for most normal use, just like SuperTech, Kirkland, etc. Just use a good filter and change regularly.

PS Costco puts it on sale often for 30.99 aka 15.50 per 5qt jug. Used it in all 3 of my cars for years no prob, internals look super clean. It's Dexos Gen3 rated, good enough for me. Just offering an alternative that's cheaper, that's all.
Ignore the nonsense based on ancient brand loyalty, tales of sludge in the 70's, outdated formulations that aren't found in today's conventional oils, and pure ignorance. Even conventional dino juice is much different than what the same brands sold several decades ago. Synthetics have come a long way, and virtually everyone sells a decent product now. I still have brand preferences but I acknowledge that the label on the front of the bottle means little now.
Feb 28, 2024 3:53 PM
2.3K Comments
Joined Jul 2019
ShushiiTFeb 28, 2024 3:53 PM
2.3K Comments
Quote from TaskMaster :
Must not know oil.
Must you be So observant
Feb 28, 2024 3:55 PM
166 Comments
Joined Oct 2016
watagFeb 28, 2024 3:55 PM
166 Comments
Quote from SeanD1497 :
Ignore the nonsense based on ancient brand loyalty, tales of sludge in the 70's, outdated formulations that aren't found in today's conventional oils, and pure ignorance. Even conventional dino juice is much different than what the same brands sold several decades ago. Synthetics have come a long way, and virtually everyone sells a decent product now. I still have brand preferences but I acknowledge that the label on the front of the bottle means little now.
Exactly. I'm open to proof. Otherwise, proof says paying for marketing and "brand name." "Super advanced additives"

You're better off spending more on a high quality oil filter, air filter, tires or something else where brand actually matters.
Feb 28, 2024 4:01 PM
22 Comments
Joined Jan 2016
pokemugFeb 28, 2024 4:01 PM
22 Comments
Save an extra $22.75 if you have an electric car.
1
Feb 28, 2024 4:01 PM
660 Comments
Joined May 2010
vjimmyFeb 28, 2024 4:01 PM
660 Comments
I reached an age and financial position where I no longer care about what others think of me and what I own. So it's great to own a reliable, safe, comfortable daily car that I treat simply as a tool versus a baby/status symbol. Yeah, it doesn't turn heads and some may call it a beater. But Walmart SuperTech oil and the cheapest filter at Walmart is good enough. Just make sure to change your oil every 5,000 miles.

Yes, my net worth is in the top 5% of the US and I am still spending time on Slickdeals....no amount of money will change this frugality mindset! LOL....
3

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Feb 28, 2024 4:04 PM
6 Comments
Joined Jun 2016
jvmanegoFeb 28, 2024 4:04 PM
6 Comments
Quote from nuy6n6nn :
Lmao yes gas comes from the same place. Additives, detergents and quality control make a difference buddy. Keep up with the cheapo gas and enjoy the clogged injectors at 60k miles
I guess my cheapo gas from Costco has treated me poorly on my 324k mile car.
1

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