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popularpennysave posted Feb 21, 2026 12:28 PM
popularpennysave posted Feb 21, 2026 12:28 PM

$19.98*:Mobil Full Synthetic High Mileage Motor Oil 5W-20, 5 Quart at Walmart.com

$20

$25

20% off
Walmart
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Walmart.com has Mobil Full Synthetic High Mileage Motor Oil 5W-30, 5 Quart on sale for $19.98. Shipping is free w/ Walmart+ (free 30-day trial) or on orders of $35+.

https://www.walmart.com/ip/Mobil-.../588086506



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Walmart.com has Mobil Full Synthetic High Mileage Motor Oil 5W-30, 5 Quart on sale for $19.98. Shipping is free w/ Walmart+ (free 30-day trial) or on orders of $35+.

https://www.walmart.com/ip/Mobil-.../588086506



QA Note: YMMV. Availability varies by location.

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18 Comments

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Feb 21, 2026 12:45 PM
3,794 Posts
Joined Oct 2010
brotherhpj41Feb 21, 2026 12:45 PM
3,794 Posts

Our community has rated this post as helpful. If you agree, why not thank brotherhpj41

Dont get confused this is not Mobil One
2
1
Pro
Feb 21, 2026 02:25 PM
1,793 Posts
Joined May 2007
coldteadodd
Pro
Feb 21, 2026 02:25 PM
1,793 Posts
Quote from brotherhpj41 :
Dont get confused this is not Mobil One
Its' a ExonMobil product.

Mobil Full Synthetic is advertised as a step above syn blends -- it seems similar to Mobil Super Synthetic, but this is where the product lines become blurred and the public gets confused, hence your question. The price difference is so small between Mobil 1 and Mobil FS/Super Syn that I just spend a couple extra dollars and get the advanced product. Marketing works. See this page: Mobil Synthetic Oils
Feb 21, 2026 04:27 PM
908 Posts
Joined Nov 2009
mrgamersFeb 21, 2026 04:27 PM
908 Posts
Isn't Mobil 1 better?
Feb 21, 2026 04:53 PM
6,457 Posts
Joined Mar 2005
PedroRFeb 21, 2026 04:53 PM
6,457 Posts
Quote from pennysave :
Walmart.com has Mobil Full Synthetic High Mileage Motor Oil 5W-30

You dont want that garbage

You want
walmart.com/ip/Mobil-1-High-Mileage-Full-Synthetic-Motor-Oil-5W-30-5-Quart/17018131
or
walmart.com/ip/Mobil-1-Extended-Performance-High-Mileage-Full-Synthetic-Motor-Oil-5W-30-5-Quart/111569385
1
1
Pro
Feb 21, 2026 05:05 PM
12,761 Posts
Joined Jan 2007
MadPup
Pro
Feb 21, 2026 05:05 PM
12,761 Posts
Quote from PedroR :
You dont want that garbage

You want
walmart.com/ip/Mobil-1-High-Mileage-Full-Synthetic-Motor-Oil-5W-30-5-Quart/17018131
or
walmart.com/ip/Mobil-1-Extended-Performance-High-Mileage-Full-Synthetic-Motor-Oil-5W-30-5-Quart/111569385
Look at the certifications on the back of the bottle. If it's certified for your car I don't see the problem, especially if you are performing oil changes every 5K or 6K miles.
Feb 21, 2026 10:34 PM
54 Posts
Joined Sep 2021
NavyCatfish8868Feb 21, 2026 10:34 PM
54 Posts
Quote from brotherhpj41 :
Dont get confused this is not Mobil One
Thanks, they got me. LOL
Feb 22, 2026 11:49 PM
4,573 Posts
Joined Feb 2008
tymanFeb 22, 2026 11:49 PM
4,573 Posts
Quote from mrgamers :
Isn't Mobil 1 better?
Of course it is. This is EM's entry level full synthetic oil. Roughly equivalent to Kirkland FS, AmazonBasics, SuperTech. All entry level FS oils.

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Feb 23, 2026 12:52 AM
1,546 Posts
Joined Mar 2012
Chevyguy85Feb 23, 2026 12:52 AM
1,546 Posts
Best time to get Mobil motor oil is during their rebate periods if you can. Between Walmart having the 5 gallon buckets cheaper than most other places and the rebates I save quite a bit when I stock up on motor oil.
Feb 23, 2026 02:39 PM
50 Posts
Joined Dec 2015
armandoc4221Feb 23, 2026 02:39 PM
50 Posts
Great deal
Feb 23, 2026 02:40 PM
50 Posts
Joined Dec 2015
armandoc4221Feb 23, 2026 02:40 PM
50 Posts
Great deal
Feb 23, 2026 04:52 PM
635 Posts
Joined Jun 2008
MintooFeb 23, 2026 04:52 PM
635 Posts
Quote from Chevyguy85 :
Best time to get Mobil motor oil is during their rebate periods if you can. Between Walmart having the 5 gallon buckets cheaper than most other places and the rebates I save quite a bit when I stock up on motor oil.
If you stock up oil then wouldn't they go bad if not used for longer period of time?
Feb 23, 2026 07:59 PM
350 Posts
Joined Mar 2014
SteakNCheeseFeb 23, 2026 07:59 PM
350 Posts
Quote from Mintoo :
If you stock up oil then wouldn't they go bad if not used for longer period of time?
I personally have stored on sale oil for several years in my basement with no issues. That being said i write the date purchased on bottle and rotate stock, and shake bottles a little in case anything settles to bottom.
Last edited by SteakNCheese February 23, 2026 at 01:02 PM.
Feb 24, 2026 06:09 AM
1,546 Posts
Joined Mar 2012
Chevyguy85Feb 24, 2026 06:09 AM
1,546 Posts
Quote from Mintoo :
If you stock up oil then wouldn't they go bad if not used for longer period of time?
Nope. 10 gallons last me 4 oil changes which is anywhere from 1 - 3 years worth. As long as it's properly closed it'll last years. It'll last decades if still sealed.
Feb 24, 2026 03:09 PM
511 Posts
Joined Jun 2011
robvasFeb 24, 2026 03:09 PM
511 Posts
Quote from Chevyguy85 :
Nope. 10 gallons last me 4 oil changes which is anywhere from 1 - 3 years worth. As long as it's properly closed it'll last years. It'll last decades if still sealed.
Decades? The additives will fall out of suspension on many oils.
https://www.youtube.com/watch?v=E1T4XFPgBeo

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Feb 24, 2026 03:56 PM
1,546 Posts
Joined Mar 2012
Chevyguy85Feb 24, 2026 03:56 PM
1,546 Posts
Quote from robvas :
Decades? The additives will fall out of suspension on many oils.https://www.youtube.com/watch?v=E1T4XFPgBeo
It'll still work 🤷🙃

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