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expiredphoinix | Staff posted May 03, 2026 03:03 PM
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expiredphoinix | Staff posted May 03, 2026 03:03 PM

5-Oz LIQUI MOLY Valve Clean Petroladititive

$8.00

$15

46% off
Amazon
27 Comments
10,397 Views
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Deal Details
Amazon has 5-Oz LIQUI MOLY Valve Clean Petroladititive on sale for $8. Shipping is free w/ Prime or on $35+ orders.Thanks to Deal Hunter phoinix for sharing this deal.

About this product:
  • Improves engine performance
  • Reduces fuel consumption
  • Decreases pollutant emissions
  • Protects against corrosion
  • Prevents carburetor icing

Editor's Notes

Written by jimmytx | Staff
  • About this Store:
  • Additional Information:
    • This offer matches our front page deal from April 2026 which earned over 30 thumbs up.
    • Rated 4.7 out of 5 stars on Amazon based on over 4.1k 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 Notes
About the Poster
Deal Details
Community Notes
About the Poster
Amazon has 5-Oz LIQUI MOLY Valve Clean Petroladititive on sale for $8. Shipping is free w/ Prime or on $35+ orders.Thanks to Deal Hunter phoinix for sharing this deal.

About this product:
  • Improves engine performance
  • Reduces fuel consumption
  • Decreases pollutant emissions
  • Protects against corrosion
  • Prevents carburetor icing

Editor's Notes

Written by jimmytx | Staff
  • About this Store:
  • Additional Information:
    • This offer matches our front page deal from April 2026 which earned over 30 thumbs up.
    • Rated 4.7 out of 5 stars on Amazon based on over 4.1k 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
+29
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Top Comments

PurpleHamster866
106 Posts
22 Reputation
Yes, it will not work with GDi or direct injection engine as fuel does not pass the valves. You need seafoam or crc intake valve cleaner for that

27 Comments

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May 05, 2026 11:15 AM
76 Posts
Joined Nov 2014
arkonjumbleMay 05, 2026 11:15 AM
76 Posts
Good stuff
May 05, 2026 09:09 PM
653 Posts
Joined Aug 2013
ElCheaperinoMay 05, 2026 09:09 PM
653 Posts
Got a few of these last time and they work nice. Improved MPG
May 05, 2026 09:56 PM
962 Posts
Joined Nov 2006
fatwalletuabMay 05, 2026 09:56 PM
962 Posts
Would this damage the engine in the long run?
2
May 06, 2026 12:54 AM
1,552 Posts
Joined Nov 2015
YaGirlsNewManMay 06, 2026 12:54 AM
1,552 Posts
Quote from fatwalletuab :
Would this damage the engine in the long run?
Nah, if anything, the fuel pump and maybe rubber gaskets with excessive use
May 06, 2026 02:35 AM
451 Posts
Joined Oct 2014
delzingaMay 06, 2026 02:35 AM
451 Posts
Wow. Lavender scented, and good for dry sanding. Way to go Amazon product descriptions.
4
May 06, 2026 05:08 AM
1,627 Posts
Joined Sep 2011
SoukaMay 06, 2026 05:08 AM
1,627 Posts
Brand Liqui Moly
Item Form Liquid
Scent Lavender
Specific Uses For Product Dry Sanding
Material Feature Compostable, biodegradable, Is food safe, Fragrance free, Plant based, etc.
4
May 06, 2026 05:11 AM
1,627 Posts
Joined Sep 2011
SoukaMay 06, 2026 05:11 AM
1,627 Posts
Pretty much useless unless you only have direct injection.

My toyota has direct and port injection. At 150k miles I snaked a borescope down the intake and peeked at 3 cylinders intakes (one bank of the v6)... all were pretty clean
1

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May 06, 2026 05:24 AM
106 Posts
Joined Apr 2022
PurpleHamster866May 06, 2026 05:24 AM
106 Posts

Our community has rated this post as helpful. If you agree, why not thank PurpleHamster866

Yes, it will not work with GDi or direct injection engine as fuel does not pass the valves. You need seafoam or crc intake valve cleaner for that
5
May 06, 2026 05:50 AM
362 Posts
Joined Jan 2019
FancyTeam7624May 06, 2026 05:50 AM
362 Posts
Is it any good for motorcycles?
May 06, 2026 07:16 AM
560 Posts
Joined Feb 2013
SptxMay 06, 2026 07:16 AM
560 Posts
I'd like to know if anyone has had good or bad experiences with motorcycles as well
May 06, 2026 10:48 AM
2,879 Posts
Joined Dec 2008
Marlin1975May 06, 2026 10:48 AM
2,879 Posts
Stuff like this has been shown to not do much of anything.

If you really want to clean your intake/valves then you need to add it directly to the instakle system. A cheap can of carb/brake cleaner sprayed through a vacuum/PCV line or throttle body while running will do so much more than anything you add to your gas.
1
May 06, 2026 02:30 PM
298 Posts
Joined May 2021
pmzo33May 06, 2026 02:30 PM
298 Posts
Valve cleaner, huh? What do you think all the additives in gas do assuming you don't have direct injection?
May 06, 2026 05:39 PM
325 Posts
Joined Feb 2009
AuztinMay 06, 2026 05:39 PM
325 Posts
Quote from pmzo33 :
Valve cleaner, huh? What do you think all the additives in gas do assuming you don't have direct injection?
What if I do have direct injection? Would this help?
May 06, 2026 05:58 PM
298 Posts
Joined May 2021
pmzo33May 06, 2026 05:58 PM
298 Posts
Quote from Auztin :
What if I do have direct injection? Would this help?
A product like this would not help in your case. Nothing is touching the top of your valves if you have direct injection. That's why they get so carbon fouled. Gas from the injectors never hit the valves with direct injection. That only happens with port injection. For direct injection, you'd need to do a walnut blasting to get them cleaned up.
1

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May 06, 2026 06:22 PM
768 Posts
Joined Jul 2020
MattacksMay 06, 2026 06:22 PM
768 Posts
Quote from Auztin :
What if I do have direct injection? Would this help?
You would have to suck it through the intake

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