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frontpagephoinix | Staff posted Today 01:38 PM
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Item 1 of 3
frontpagephoinix | Staff posted Today 01:38 PM

5-Qt Castrol GTX Full Synthetic Motor Oil (5W-30)

w/ S&S

$19

$25

24% off
Amazon
22 Comments 4,487 Views
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Deal Details
Amazon has Castrol GTX Full Synthetic 5W-30 Motor Oil, 5 Quarts for $20.37 - 5% when you check out via Subscribe & Save = $19.35. Shipping is free with Prime or on $35+ orders.

Note: You have the flexibility to 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.

Thanks to Deal Hunter phoinix for finding this deal.

Features:
  • 6X better wear protection on critical engine parts than industry standards
  • 1.3X better sludge protection than industry standards
  • 3X Stronger against viscosity breakdown than leading full synthetic
  • Protection for 10,000 miles between oil changes

Editor's Notes

Written by powerfuldoppler | Staff
  • About this deal:
    • Our research indicates that this offer is $4.60 lower (19% savings) than the next best available price from a reputable merchant with prices starting from $23.95
  • About this product:
    • Rating of 4.8 from over 3400 customer reviews.
  • About this store:

Original Post

Written by phoinix | Staff
Product Info
Community Notes
About the Poster
Deal Details
Product Info
Community Notes
About the Poster
Amazon has Castrol GTX Full Synthetic 5W-30 Motor Oil, 5 Quarts for $20.37 - 5% when you check out via Subscribe & Save = $19.35. Shipping is free with Prime or on $35+ orders.

Note: You have the flexibility to 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.

Thanks to Deal Hunter phoinix for finding this deal.

Features:
  • 6X better wear protection on critical engine parts than industry standards
  • 1.3X better sludge protection than industry standards
  • 3X Stronger against viscosity breakdown than leading full synthetic
  • Protection for 10,000 miles between oil changes

Editor's Notes

Written by powerfuldoppler | Staff
  • About this deal:
    • Our research indicates that this offer is $4.60 lower (19% savings) than the next best available price from a reputable merchant with prices starting from $23.95
  • About this product:
    • Rating of 4.8 from over 3400 customer reviews.
  • About this store:

Original Post

Written by phoinix | Staff

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22 Comments

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Today 02:54 PM
158 Posts
Joined Nov 2015
An-NguyenToday 02:54 PM
158 Posts
I just bought 4 pack of 6 mobil 1 oil, how is this compare to mobil 1 extended performance
Today 03:24 PM
295 Posts
Joined Oct 2018
FancyWren413Today 03:24 PM
295 Posts
Great price for full synthetic oil. Ordered 2 as my vehicle takes 6 quarts.
Today 04:06 PM
373 Posts
Joined Sep 2008
fknbToday 04:06 PM
373 Posts
looks like other velocity is also on sale.
Today 04:45 PM
9,860 Posts
Joined Nov 2013
AdelleyToday 04:45 PM
9,860 Posts
Dang, not 503 spec
Today 04:47 PM
72 Posts
Joined Jan 2020
FancyLaborer769Today 04:47 PM
72 Posts
Quote from fknb :
looks like other velocity is also on sale.
*viscosity
Today 04:59 PM
257 Posts
Joined Feb 2008
alchargoToday 04:59 PM
257 Posts
Unsure if Amazon qualifies but if it does:

https://apfco.org/secured/digital...CTS/R13994
1
Today 04:59 PM
1,248 Posts
Joined Oct 2005
epenterprisesToday 04:59 PM
1,248 Posts
Tempting to stock up

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Today 05:11 PM
477 Posts
Joined Dec 2013

This comment has been rated as unhelpful by Slickdeals users.

Today 05:24 PM
334 Posts
Joined Sep 2021
JollyLanguage1998Today 05:24 PM
334 Posts
Quote from zen_cohen :
Used to buy these often for my oil-guzzling Outback, but recently got an EV6 and never have to deal with oil and gas again. Reliable charging on long road trips is my biggest worry, but it's been a great trade-off, and love having 320 HP and over 450 lb-ft of torque.
Wow!!
Today 05:33 PM
352 Posts
Joined Aug 2019
OrangeApparel8487Today 05:33 PM
352 Posts
This is good stuff. This is the former Magnatec. Great for ecoboost engines.
Today 05:34 PM
352 Posts
Joined Aug 2019
OrangeApparel8487Today 05:34 PM
352 Posts
Quote from zen_cohen :
Used to buy these often for my oil-guzzling Outback, but recently got an EV6 and never have to deal with oil and gas again. Reliable charging on long road trips is my biggest worry, but it's been a great trade-off, and love having 320 HP and over 450 lb-ft of torque.
[IMG]https://media0.giphy.com/media/v1.Y2lkPTI5MDMyOTZhYjVkNnhtNWE3MHFoeDl2ZHQzamhkZDUzaDJueDltZzJibmt2cWE3ciZlcD12MV9naWZzX3NlYXJjaCZjdD1n/IguTdo3MPMeZM6Bzc1/giphy.gif[/IMG]bigthumbup
Pro
Today 05:41 PM
2,626 Posts
Joined Sep 2011
DealSeekerDeal
Pro
Today 05:41 PM
2,626 Posts
Once you go Synthetic, you never go back...
Today 06:38 PM
4,008 Posts
Joined Dec 2011
ebolaboiToday 06:38 PM
4,008 Posts
Quote from zen_cohen :
Used to buy these often for my oil-guzzling Outback, but recently got an EV6 and never have to deal with oil and gas again. Reliable charging on long road trips is my biggest worry, but it's been a great trade-off, and love having 320 HP and over 450 lb-ft of torque.
Cars aren't supposed to go through oil like that. Maybe you should have gotten it fixed instead of buying oil all the time? LOL! Watch out for that ICCU?
Last edited by ebolaboi March 25, 2026 at 11:43 AM.
1
Today 07:26 PM
477 Posts
Joined Dec 2013
zen_cohenToday 07:26 PM
477 Posts
Quote from ebolaboi :
Cars aren't supposed to go through oil like that. Maybe you should have gotten it fixed instead of buying oil all the time? LOL! Watch out for that ICCU?
It did leak but it still burned oil after repairing the leaks. And, yeah, the ICCU is a potential downside, but it's still worth the pretty small risk AFAIC.

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Today 07:45 PM
10 Posts
Joined Nov 2013
Yoshi8765Today 07:45 PM
10 Posts
Quote from alchargo :
Unsure if Amazon qualifies but if it does:

https://apfco.org/secured/digital...CTS/R13994
seems like this won't work with amazon?

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