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frontpageRelaxedPenguin2752 posted Mar 14, 2026 06:07 PM
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frontpageRelaxedPenguin2752 posted Mar 14, 2026 06:07 PM

1-Qt Castrol GTX Classic Conventional Motor Oil (20W-50)

+ Free Pickup

$2.00

$10

80% off
AutoZone
28 Comments 8,593 Views
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Deal Details
AutoZone has 1-Quart Castrol GTX Classic Conventional Motor Oil (20W-50, 15E24D) for $2. Select free store pickup where available, otherwise shipping is free on $35+ orders.

Thanks to Community Member RelaxedPenguin2752 for finding this deal.

Note: Availability for pickup may vary by location

Features:
  • Specialized additives containing high Zinc and Phosphorus for extreme wear protection
  • Formulated to maintain tough and thick oil film even under severe conditions
  • Minimal foaming and high resistance to thermal degradation
  • Compatible with gasoline and alcohol based fuels
  • *NOT FOR USE IN MODERN ENGINES WITH CATALYTIC CONVERTERS OR WET CLUTCH APPLICATIONS
     

Editor's Notes

Written by SubZero5 | Staff
  • About this deal:
    • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.
  • About this product:
    • Rating of 4.6/5 from AutoZone customer reviews.
  • About this store:
    • Details of AutoZone's return policy (here)

Original Post

Written by RelaxedPenguin2752
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
AutoZone has 1-Quart Castrol GTX Classic Conventional Motor Oil (20W-50, 15E24D) for $2. Select free store pickup where available, otherwise shipping is free on $35+ orders.

Thanks to Community Member RelaxedPenguin2752 for finding this deal.

Note: Availability for pickup may vary by location

Features:
  • Specialized additives containing high Zinc and Phosphorus for extreme wear protection
  • Formulated to maintain tough and thick oil film even under severe conditions
  • Minimal foaming and high resistance to thermal degradation
  • Compatible with gasoline and alcohol based fuels
  • *NOT FOR USE IN MODERN ENGINES WITH CATALYTIC CONVERTERS OR WET CLUTCH APPLICATIONS
     

Editor's Notes

Written by SubZero5 | Staff
  • About this deal:
    • Please see the original post for additional details & give the WIKI and additional forum comments a read for helpful discussion.
  • About this product:
    • Rating of 4.6/5 from AutoZone customer reviews.
  • About this store:
    • Details of AutoZone's return policy (here)

Original Post

Written by RelaxedPenguin2752

Community Voting

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+43
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28 Comments

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Mar 14, 2026 10:50 PM
310 Posts
Joined Nov 2011
rob4448585Mar 14, 2026 10:50 PM
310 Posts
In for 100 thanks
3
1
Mar 14, 2026 10:57 PM
151 Posts
Joined Jan 2020
TenderLinen384Mar 14, 2026 10:57 PM
151 Posts
Quote from rob4448585 :
In for 100 thanks
Jesus. It let me do 18. Which is good for my next 3yrs of oil changes on my MGB lol
Mar 15, 2026 12:16 AM
2,681 Posts
Joined Mar 2008
dudMar 15, 2026 12:16 AM
2,681 Posts
My 80s Toyota Celica used to take this oil. Oh, the memories!
Mar 15, 2026 12:41 AM
155 Posts
Joined Jun 2015
Joonbug1988Mar 15, 2026 12:41 AM
155 Posts
Thank you
Mar 15, 2026 01:12 AM
151 Posts
Joined Jan 2020
TenderLinen384Mar 15, 2026 01:12 AM
151 Posts
Grabbed 10 in person we shall see if the 18 ship. Better than nothing
Pro
Mar 15, 2026 01:23 AM
439 Posts
Joined Mar 2010
E28M5
Pro
Mar 15, 2026 01:23 AM
439 Posts
Good find
Mar 15, 2026 02:08 AM
1,411 Posts
Joined Aug 2005
desidude2000Mar 15, 2026 02:08 AM
1,411 Posts
Which cars use this though? My cars are calling for 0-20. Or slightly older ones 5-30.
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Mar 15, 2026 03:13 AM
559 Posts
Joined Oct 2009
Find_A_DealMar 15, 2026 03:13 AM
559 Posts
Quote from desidude2000 :
Which cars use this though? My cars are calling for 0-20. Or slightly older ones 5-30.
Don't use this then. It will cause hydraulic lock and your engine will be toast.
This is for older cars, pushrod type cylinder heads with large oil gallies.
1
Mar 15, 2026 03:48 AM
555 Posts
Joined Feb 2020
dirtpeopleMar 15, 2026 03:48 AM
555 Posts

Our community has rated this post as helpful. If you agree, why not thank dirtpeople

This should also qualify for Castrol's current $5 per 5 qt. GTX rebate (max. $15) bringing the total down to $1/qt. for quantities under 15.

Edit: Confirmed. Money is in my paypal.
Last edited by dirtpeople March 22, 2026 at 07:31 AM.
1
Mar 15, 2026 04:50 AM
126 Posts
Joined Jul 2011

This comment has been rated as unhelpful by Slickdeals users.

Mar 15, 2026 05:28 AM
4,485 Posts
Joined Dec 2003
BozoMar 15, 2026 05:28 AM
4,485 Posts
Way too heavy for my old car even, but a good deal for those who can use it! Peace
Mar 15, 2026 01:43 PM
695 Posts
Joined Dec 2008
frugal23Mar 15, 2026 01:43 PM
695 Posts
My guess is likely a no but have to ask. Can this be used as chainsaw oil etc?
Mar 15, 2026 01:47 PM
522 Posts
Joined Jun 2011
robvasMar 15, 2026 01:47 PM
522 Posts
Quote from desidude2000 :
Which cars use this though? My cars are calling for 0-20. Or slightly older ones 5-30.
Castrol® GTX® Classic is a high performance formula for push-rod, flat tappet engines and performance cam applications. It's blended with high zinc and phosphorus content to help prevent premature aging, wear and metal fatigue on engines with high tension valve springs or performance modifications that create high contact pressure and extreme internal temperatures. Specially formulated engine oil for classic/collector cars, muscle cars, hot rods and race cars.

Not for vehicles with modern catalytic converters or wet type clutches
Mar 15, 2026 02:39 PM
8,745 Posts
Joined Mar 2017
hpham_53Mar 15, 2026 02:39 PM
8,745 Posts
Quote from audiophileAJ :
Does this prevent COVID
Yes, need to do a transfusion to replace your blood with it.
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Original Poster
Pro
Mar 15, 2026 03:13 PM
1,043 Posts
Joined Jun 2022
RelaxedPenguin2752Mar 15, 2026 03:13 PM
Original Poster
Pro
1,043 Posts
Quote from frugal23 :
My guess is likely a no but have to ask. Can this be used as chainsaw oil etc?
20w50 is to heavy to use as bar oil. You can really use anything. I once on a job site in a shopping center used cooking oil out of a Chinese restaurant dumpster after I cut the oil in a water bottle with 2cycle gasoline as bar oil. I'd imagine you can cut this oil with some thinner or gasoline but the price of gas currently your better off buying bar and chain oil.
2

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