Slickdeals is community-supported.  We may get paid by brands for deals, including promoted items.
  1. Deal Image
Item 1 of 2
  1. Deal Image
  2. Deal Image
Item 1 of 2
popularAmusedPolice6755 posted Aug 2, 2026 8:39 PM

Castrol GTX Full Synthetic 5W-20 Motor Oil, 5 Quarts, Pack of 3 $71.85

$72

Amazon
3 Comments
1.5K Views
Get Deal at Amazon
Deal Details
https://www.amazon.com/dp/B09M96GF28

Not the amazing deal, but it is decent for current market of full synthetic oil.
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
https://www.amazon.com/dp/B09M96GF28

Not the amazing deal, but it is decent for current market of full synthetic oil.

Community Voting

Deal Score
+7
Good Deal
Get Deal at Amazon

Join The Conversation

Share your experience with the Slickdeals community

Share information with the community. Please follow our Community Guidelines and be kind!

3 Comments

Sign up for a Slickdeals account to remove this ad.

Aug 2, 2026 10:47 PM
1.4K Comments
Joined Mar 2009
kgorillaAug 2, 2026 10:47 PM
1.4K Comments
Not sure what the appeal is here, supertech is still less than $20 and GTX is their entry level synthetic, EDGE is the higher end Castrol.
Aug 3, 2026 10:41 AM
11 Comments
Joined Jul 2016
blakef223Aug 3, 2026 10:41 AM
11 Comments
Quote from kgorilla :
Not sure what the appeal is here, supertech is still less than $20 and GTX is their entry level synthetic, EDGE is the higher end Castrol.
Supertech is $24.88 for 5w20 right now. Where are you seeing it under $20?
Original Poster
Aug 3, 2026 7:16 PM
13 Comments
Joined Sep 2024
AmusedPolice6755
Original Poster
Aug 3, 2026 7:16 PM
13 Comments
Quote from kgorilla :
Not sure what the appeal is here, supertech is still less than $20 and GTX is their entry level synthetic, EDGE is the higher end Castrol.
Yeah that used to be the go to.. now it's less than $25.. might as well get 3 jugs of this for $72.

Join The Conversation

Share your experience with the Slickdeals community

Share information with the community. Please follow our Community Guidelines and be kind!

Related Searches

AutosMotor OilFree ShippingMotor OilCastrolAmazon

Popular Deals

See All
Found by phoinix
Jul 31, 2026 10:46 AM
Forum Thread
[AC] $16.48 | Klein Tools Klein Kurve Wire Stripper / Crimper / Cutter (1019) at Amazon$16$22
27% off
3
Found by Taco_Doomsday
Yesterday 11:56 AM
Forum Thread
Milwaukee M12 12V Lithium-Ion Cordless Compact Spot Blower with M12 Compact 2.0 Ah Battery (2-Pack) Starter Kit and Charger $119$119$319
62% off
2
Found by ppxyz1
Today 2:03 PM
Forum Thread
Calvin Klein Apparel, Shoes & Accessories Sale: Women's Foldover-Neck Front-Slit Sheath Dress $29.99 + Free Pickup at Macys or Free Shipping on $39+$30$100
70% off
0
Found by SpicyMemeLord
Aug 3, 2026 5:16 PM
Forum Thread
$5.50 Shipped for Speck Presidio Perfect Clear Grip Case with MagSafe for iPhone 16 Pro$5.00$50
90% off
2
Found by phoinix
Aug 3, 2026 7:42 AM
Forum Thread
$374.99 | 128GB Samsung Galaxy A56 5G Cell Phone at Amazon$375$500
25% off
2

Trending Deals

See All
Found by Totspurs
Today 1:35 PM
Forum Thread
Costco - Giant KerPlunk Game $29.97 in store only YMMV$30$100
70% off
0
Found by minntwins
Today 1:16 PM
Forum Thread
Naruto Men's Print Board Shorts (2 Prints) $4.08 + Free Shipping w/ Walmart+ or on $35+$4.08$20
79% off
0
Found by phoinix
Today 11:53 AM
Forum Thread
$49.99 | ASUS A31 PLUS Black ATX PC Case at Woot!$50
1
Found by minntwins
Today 1:11 PM
Forum Thread
Way to Celebrate Men's Graphic Tee (2 Prints) $1.59 + Free Shipping w/ Walmart+ or on $35+$1.59$6.98
77% off
0
Found by phoinix
Today 11:09 AM
Forum Thread
$163.99** | 1505-Piece LEGO Icons - Transformers: Soundwave (10358, 2025) at Amazon$164$190
13% off
1