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expiredgaamn114 | Staff posted May 17, 2026 01:35 PM
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expiredgaamn114 | Staff posted May 17, 2026 01:35 PM

5-Qt Castrol GTX High Mileage 5W-20 Synthetic Blend Motor Oil

w/ S&S

$14

$24

41% off
Amazon
12 Comments
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Deal Details
Amazon has 5-Quart Castrol GTX High Mileage 5W-20 Synthetic Blend Motor Oil on sale for $14.95 - $0.75 (5%) when you check out via Subscribe & Save = $14.20. Shipping is free with Prime or on $35+ orders.

Thanks to Deal Hunter gaamn114 for finding this deal.

Note: You can manage your Subscribe & Save subscription at any time after your order ships. View Subscribe & Save filler items and our current Subscribe & Save Frontpage deals to unlock up to extra 15% savings when you have 5 or more items in your current monthly subscription.

About this item:
  • Phosphorus Replacement Technology helps extend emission system life
  • Superior dispersancy that fights sludge build up
  • Exceptional oil burn-off protection exceeding industry standards* | Seal conditioners to help reduce leaks
  • Advanced additives that help prevent engine wear | Improved Fuel Economy**
  • Meets or exceeds the following specifications: API SP/SN PLUS/SN/SM | ILSAC GF-6 | Meets Ford WSS-M2C945-B1 | Meets Ford WSS-M2C960-A1 |* Based on API and ACEA volatility specifications | ** In 5W-20, 5W-30 and 10W-30 grades versus industry specifications

Editor's Notes

Written by qwikwit | Staff

Original Post

Written by gaamn114 | Staff
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Amazon has 5-Quart Castrol GTX High Mileage 5W-20 Synthetic Blend Motor Oil on sale for $14.95 - $0.75 (5%) when you check out via Subscribe & Save = $14.20. Shipping is free with Prime or on $35+ orders.

Thanks to Deal Hunter gaamn114 for finding this deal.

Note: You can manage your Subscribe & Save subscription at any time after your order ships. View Subscribe & Save filler items and our current Subscribe & Save Frontpage deals to unlock up to extra 15% savings when you have 5 or more items in your current monthly subscription.

About this item:
  • Phosphorus Replacement Technology helps extend emission system life
  • Superior dispersancy that fights sludge build up
  • Exceptional oil burn-off protection exceeding industry standards* | Seal conditioners to help reduce leaks
  • Advanced additives that help prevent engine wear | Improved Fuel Economy**
  • Meets or exceeds the following specifications: API SP/SN PLUS/SN/SM | ILSAC GF-6 | Meets Ford WSS-M2C945-B1 | Meets Ford WSS-M2C960-A1 |* Based on API and ACEA volatility specifications | ** In 5W-20, 5W-30 and 10W-30 grades versus industry specifications

Editor's Notes

Written by qwikwit | Staff

Original Post

Written by gaamn114 | Staff

Community Voting

Deal Score
+31
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Model: Castrol GTX High Mileage 5W-20 Synthetic Blend Motor Oil, 5 Quarts

Deal History 

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Sort: Lowest to Highest | Last Updated 6/17/2026, 08:05 PM
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12 Comments

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May 17, 2026 05:25 PM
2,607 Posts
Joined Oct 2008
asukaMay 17, 2026 05:25 PM
2,607 Posts
Good for late 2000s Hemis, if the seals are holding. Newer stuff, API SQ and don't look back.
1
Pro
May 17, 2026 06:22 PM
8,861 Posts
Joined Aug 2009
AznCracker
Pro
May 17, 2026 06:22 PM
8,861 Posts
Just curious. Oil price is very high, but there has been so many oil deals lately. Wonder what's the reason.

Is it because it takes a few months for the supply chain to catch up to prices? Wondering if I should do oil change this month or if I can wait till next month.
1
May 17, 2026 06:43 PM
857 Posts
Joined Apr 2008
c3688tMay 17, 2026 06:43 PM
857 Posts
Quote from AznCracker :
Just curious. Oil price is very high, but there has been so many oil deals lately. Wonder what's the reason.

Is it because it takes a few months for the supply chain to catch up to prices? Wondering if I should do oil change this month or if I can wait till next month.
Lubricants won't always track crude prices. I would speculate that with current high gasoline prices and inflation, two things are happening. 1) People are diving less, and thus are having less oil changes. 2) Some people might be delaying maintenance / oil changes in this inflationary period in favor of basics like buying food, paying rent, etc.
May 17, 2026 06:56 PM
709 Posts
Joined Dec 2012
fsu67May 17, 2026 06:56 PM
709 Posts
Quote from AznCracker :
Just curious. Oil price is very high, but there has been so many oil deals lately. Wonder what's the reason.Is it because it takes a few months for the supply chain to catch up to prices? Wondering if I should do oil change this month or if I can wait till next month.
Stock up at this price, better than getting caught off guard with higher prices later. Just don't go buying like it's toilet paper. 😂
1
Pro
May 17, 2026 09:58 PM
11,822 Posts
Joined Feb 2012
nottrollin
Pro
May 17, 2026 09:58 PM
11,822 Posts
Quote from AznCracker :
Just curious. Oil price is very high, but there has been so many oil deals lately. Wonder what's the reason.

Is it because it takes a few months for the supply chain to catch up to prices? Wondering if I should do oil change this month or if I can wait till next month.
Just buy the oil when it's the cheapest and then change it when it's due.

But don't buy a blend. That's just a markeing gimmick.
Pro
May 17, 2026 11:24 PM
2,231 Posts
Joined Feb 2024
Papi-Chino
Pro
May 17, 2026 11:24 PM
2,231 Posts
Chat gpt says my highlander uses synthetic 0w20, but in a pinch my engine takes 5w20 synthetic also. So, Im in for 10.
2
May 18, 2026 12:51 AM
389 Posts
Joined Aug 2007
lsmanMay 18, 2026 12:51 AM
389 Posts
If you do you own oil change, there is no reason not to stock up to one year of supplies now. The news of shortage of certain type and price increase on others are popping up all over in car YouTube channels.

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May 18, 2026 01:08 AM
9 Posts
Joined Jan 2017
FlyinMoonManMay 18, 2026 01:08 AM
9 Posts
Quote from Papi-Chino :
Chat gpt says my highlander uses synthetic 0w20, but in a pinch my engine takes 5w20 synthetic also. So, Im in for 10.
This is a synthetic blend not full synthetic so just be sure you can use that.
1
May 18, 2026 01:21 AM
2,371 Posts
Joined Dec 2018
HonestMammoth473May 18, 2026 01:21 AM
2,371 Posts
Quote from nottrollin :
Just buy the oil when it's the cheapest and then change it when it's due.

But don't buy a blend. That's just a markeing gimmick.
I always buy conventional or blends for my truck. She leaks like a sieve with full synthetic. Obviously, I realize that there's a problem, but I'm not dumping much into a truck with 224k on the clock and a body that's getting eaten alive by road salt effects.
Pro
May 18, 2026 03:23 AM
2,231 Posts
Joined Feb 2024
Papi-Chino
Pro
May 18, 2026 03:23 AM
2,231 Posts
Quote from FlyinMoonMan :
This is a synthetic blend not full synthetic so just be sure you can use that.
You right!! Had cancel my order, cause I want the real deal with no blends.
1
Pro
May 20, 2026 03:18 AM
8,861 Posts
Joined Aug 2009
AznCracker
Pro
May 20, 2026 03:18 AM
8,861 Posts
Quote from c3688t :
Lubricants won't always track crude prices. I would speculate that with current high gasoline prices and inflation, two things are happening. 1) People are diving less, and thus are having less oil changes. 2) Some people might be delaying maintenance / oil changes in this inflationary period in favor of basics like buying food, paying rent, etc.
There's news of a possible motor oil shortage in the coming weeks. Yea probably good idea to stock up for the next 1-2 years.

Got the costco deal and mobil 1 deals already.

Dealership has a $50 oil change special so might go to the dealer one more time for my newer car.
1
May 20, 2026 10:26 PM
857 Posts
Joined Apr 2008
c3688tMay 20, 2026 10:26 PM
857 Posts
Quote from AznCracker :
There's news of a possible motor oil shortage in the coming weeks. Yea probably good idea to stock up for the next 1-2 years.

Got the costco deal and mobil 1 deals already.

Dealership has a $50 oil change special so might go to the dealer one more time for my newer car.
Interesting, could very well be. Any news links about it you can post? EDIT: Nevermind, I googled a couple articles. Strange times. Glad I'm always sitting on at least 2 years of stock on the shelf.

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