Search  for anything...

LiquiMoly 3721 Engine Oil Additive

  • Based on 1,278 reviews
Condition: New
Checking for product changes

Buy Now, Pay Later


As low as $11 / mo
  • – 4-month term
  • – No impact on credit
  • – Instant approval decision
  • – Secure and straightforward checkout

Ready to go? Add this product to your cart and select a plan during checkout.

Payment plans are offered through our trusted finance partners Klarna, PayTomorrow, Affirm, Afterpay, Apple Pay, and PayPal. No-credit-needed leasing options through Acima may also be available at checkout.

Learn more about financing & leasing here.

Free shipping on this product

Eligible for Return, Refund or Replacement within 30 days of receipt

To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.

To initiate a return, please visit our Returns Center.

View our full returns policy here.


Availability: In Stock.
Fulfilled by Amazon

Arrives Friday, Jul 25
Order within 7 hours and 32 minutes
Available payment plans shown during checkout

Features

  • Single Quantity
  • No Core Charge Req
  • Stable even under high thermal and dynamic permanent loads
  • No deposits and absolutely compatible with all commonly used filter systems

Description

Liqui Moly 3721 Engine Oil AdditiveNo Core Charge RequiredParts Interchange 3721, 3721, 3721, 3721

Brand: Liqui Moly


UPC:


Manufacturer: LiquiMoly


Manufacturer: ‎LiquiMoly


Brand: ‎Liqui Moly


Item Weight: ‎1.5 pounds


Item model number: ‎3721


Is Discontinued By Manufacturer: ‎No


Manufacturer Part Number: ‎3721


Date First Available: September 22, 2015


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Friday, Jul 25

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Great engine treatment
This Ceratec is great - can hear a difference as soon as it is added after an oil change. Make sure to shake it up a lot before adding to your engine.
Reviewed in the United States on June 29, 2024 by reader

  • Quiet valves finally
I am not sure what is in this magic sauce. It definitely makes the oil look bad, like you have a blown head gasket and are getting some water in your oil. But, the annoying valve chatter has quieted. will it work for everyone? of course not. Might it work for you? Maybe! It is not a big expense to try before investing in much more expensive fixes. I do not think you will be disappointed, but some of you will be. Its not a magic mechanic in a bottle lol ... show more
Reviewed in the United States on June 6, 2024 by Robert

  • Excellent Product
I recommend anyone with older cars to use this to have your engine running quieter, save gas and performance.
Reviewed in the United States on June 23, 2024 by Raj Kashyap

  • Excellent product
Great product, excellent price. Use with my cars to keep engine happy with higher miles,
Reviewed in the United States on June 28, 2024 by James H.

  • Definitely does quiet the engine noise
Added it after I did an oil change and I did quiet my engine nose in my 2013 chevy with the 5.3 with 230k I highly recommend it
Reviewed in the United States on July 14, 2024 by jeffrey

  • Great stuff
Quality product, have 94,000 miles on my Infiniti G37X notice a little noise from the engine. Within 5 minutes the sound went away My important are the other benefits it provides on regular usage
Reviewed in the United States on May 20, 2024 by bkhman57

  • Good product
Good for the engine but , come smashed the packed
Reviewed in the United States on February 27, 2024 by ANTONIO ILGARLO

  • Good bye ticking noise.
It does what it says. My tic toc noise in my 2019 mustang is gone and runs smoother. Very good product highly recommend.
Reviewed in the United States on May 11, 2024 by Jose Ortiz

Can't find a product?

Find it on Amazon first, then paste the link below.