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expiredphoinix | Staff posted Apr 11, 2026 05:55 AM
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expiredphoinix | Staff posted Apr 11, 2026 05:55 AM

5-Qt Castrol GTX High Mileage 10W-30 Synthetic Blend Motor Oil

w/ S&S

$14

$24

41% off
Amazon
3 Comments 3,608 Views
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Deal Details
Amazon has 5-Quart Castrol GTX High Mileage 10W-30 Synthetic Blend Motor Oil on sale for $14.95 - $0.75 (5%) off when you check out via Subscribe & Save = $14.20. Shipping is free w/ Prime or on $35+ orders.Thanks to Deal Hunter phoinix for sharing this deal.

About this product:
  • Phosphorus Replacement Technology extends emission system life
  • Superior dispersancy fights sludge build up inside engine
  • Seal conditioners help reduce oil leaks from aging gaskets
  • Advanced additives prevent engine wear and improve fuel economy
  • Meets API SP/SN PLUS/SN/SM and ILSAC GF-6 specifications

Editor's Notes

Written by jimmytx | Staff
  • About this Store:
  • Additional Information:
    • Our research indicates that this deal is $6.77 less (32% savings) than the next best available price from a reputable merchant with prices starting from $20.97 at the time of this posting.
    • Rated 4.8 out of 5 stars on Amazon based on over 3.2k customer reviews.
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

Written by phoinix | 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 10W-30 Synthetic Blend Motor Oil on sale for $14.95 - $0.75 (5%) off when you check out via Subscribe & Save = $14.20. Shipping is free w/ Prime or on $35+ orders.Thanks to Deal Hunter phoinix for sharing this deal.

About this product:
  • Phosphorus Replacement Technology extends emission system life
  • Superior dispersancy fights sludge build up inside engine
  • Seal conditioners help reduce oil leaks from aging gaskets
  • Advanced additives prevent engine wear and improve fuel economy
  • Meets API SP/SN PLUS/SN/SM and ILSAC GF-6 specifications

Editor's Notes

Written by jimmytx | Staff
  • About this Store:
  • Additional Information:
    • Our research indicates that this deal is $6.77 less (32% savings) than the next best available price from a reputable merchant with prices starting from $20.97 at the time of this posting.
    • Rated 4.8 out of 5 stars on Amazon based on over 3.2k customer reviews.
    • Please see the original post for additional details and/or view the Wiki and forum comments for further helpful discussion if available.

Original Post

Written by phoinix | Staff

Community Voting

Deal Score
+19
Good Deal
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Price Intelligence

Model: Castrol GTX High Mileage 10W-30 Synthetic Blend Motor Oil, 5 Quarts

Deal History 

Sale Price
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Current Prices

Sort: Lowest to Highest | Last Updated 4/13/2026, 10:49 PM
Sold By Sale Price
The Home Depot$20.97

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3 Comments

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Apr 11, 2026 03:06 PM
24 Posts
Joined Nov 2018
BryanB6613Apr 11, 2026 03:06 PM
24 Posts
Just get a full synthetic for a few dollars more.
Apr 11, 2026 08:59 PM
936 Posts
Joined Nov 2004
lizard5102Apr 11, 2026 08:59 PM
936 Posts
Kirkland Full Syn at Costco still beats this.
Apr 11, 2026 09:47 PM
259 Posts
Joined Apr 2012
jeremylh56Apr 11, 2026 09:47 PM
259 Posts
Kirkland oil on sale now. Full synthetic

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