Penetrating Oil
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Liquid Wrench Penetrating Oil

Part No. L1-12 Warranty Details  
Liquid Wrench Penetrating Oil with Cerflon is a fast-acting, anti-seize formula that penetrates corrosion, loosens rusted bolts and parts.

Product Features:
  • Frees stuck nuts, bolts & locks
  • Dissolves rust & cuts through grease
  • Low odor, low VOC, and safe on painted surfaces
  • Use on garden hose nozzles, clamps, pipes and frozen mechanisms & clean off battery terminals
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Container Type:Aerosol Can
Powdered:No
Volume :11 oz

REVIEW SNAPSHOT®

by PowerReviews
Liquid WrenchPenetrating Oil
 
4.7

(based on 10 reviews)

Ratings Distribution

  • 5 Stars

     

    (7)

  • 4 Stars

     

    (3)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Easy to use (7)
  • Reliable (6)
  • Can withstand use (3)

Cons

No Cons

Best Uses

  • Home garage (8)
  • Automotive repair shop (6)
  • Upkeep (4)
    • Reviewer Profile:
    • Auto enthusiast (5), Mechanic (3)

Reviewed by 10 customers

Displaying reviews 1-10

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5.0

metal worker neighbor swears by it

By 

from Philly PA

Verified Buyer

Pros

    Cons

      Best Uses

      • Automotive Repair Shop
      • Home Garage
      • Roadside Repairs
      • Upkeep

      Comments about Liquid Wrench Penetrating Oil:

      Had a stripped pully assembly bolt that had to be cut out to remove. Nothing was helping (including wd-40), until my neighbor came over with this. He worked in a metal shop for decades, and swears by this stuff. It did work, and quickly.

      Comment on this reviewHelp Icon(earn points)

      (1 of 1 customers found this review helpful)

       
      4.0

      Works

      By 

      from Highlands Ranch, CO

      About Me Auto Enthusiast

      Verified Buyer
      Level 2

      Pros

      • Seemed To Work Ok

      Cons

      • None

      Best Uses

      • Home Garage

      Comments about Liquid Wrench Penetrating Oil:

      Didn't have any problems loosening bolts on my truck's starter.

      Comment on this reviewHelp Icon(earn points)

      (1 of 1 customers found this review helpful)

       
      5.0

      Lifesaver

      By 

      from Fairfax, VA

      About Me Auto Enthusiast, Mechanic, Truck Enthusiast

      Ask me a question

      Level 3

      Pros

      • Can Withstand Use
      • Easy To Use
      • Reliable

      Cons

        Best Uses

          Comments about Liquid Wrench Penetrating Oil:

          After using Motorcraft penetrating lubricant for a long time, I decided to give Liquid Wrench a try as it was easier and cheaper to get than the Motorcraft stuff. When getting ready to do the timing belt on my girlfriend's V6 accord, I sprayed the crank pulley bolt once a night for 7 days straight. If you dont know, the crank bolt pulley on these Honda V6 motors get so tight, they sometimes require a 3/4 or 1 inch drive impact gun to break loose.

          After a week of spraying with Liquid Wrench, I was able to pop the crank bolt off on the second try with a big breaker bar. This stuff is better by far than WD-40 and most other competitors out there.

          Comment on this reviewHelp Icon(earn points)

          (1 of 1 customers found this review helpful)

           
          4.0

          Good product

          By 

          from Harrisburg, PA

          About Me Auto Enthusiast

          Verified Buyer
          Level 1

          Pros

          • Reliable

          Cons

            Best Uses

            • Automotive Repair Shop
            • Home Garage

            Comments about Liquid Wrench Penetrating Oil:

            Just clean the surface of the bolt, spray and leave it for couple of hours.

            Comment on this reviewHelp Icon(earn points)

            (10 of 17 customers found this review helpful)

             
            5.0

            Great Product

            By 

            from Bainbridge GA

            About Me Mechanic

            Ask me a question

            Verified Buyer
            Level 3

            Pros

            • Can Withstand Use
            • Compact Design
            • Easy To Use
            • Just As Good As Blaster
            • Reliable

            Cons

            • None

            Best Uses

            • Automotive Repair Shop
            • Home Garage
            • Roadside Repairs
            • Upkeep

            Comments about Liquid Wrench Penetrating Oil:

            I used it on the rebuilded of farm equipment and was very good at loosen up very old and rusty bolts. It beats having to cut them off with a torch any day of the week. I have also used it on automotive work and heavy duty truck work and it has not failed in any applications that I have used it on so far. The price is comparable to other blaster products and in some cases you find it cheaper if you catch it on sale. It has been used in some marine applications in our shop has preformed equally as well

            Comment on this reviewHelp Icon(earn points)

            (10 of 18 customers found this review helpful)

             
            5.0

            Good Value

            By 

            from Newton, MA

            About Me Mechanic

            Verified Buyer
            Level 3

            Pros

            • Easy To Use

            Cons

              Best Uses

              • Automotive Repair Shop
              • Home Garage
              • Upkeep

              Comments about Liquid Wrench Penetrating Oil:

              Needed in every shop. Does the job at reasonable price (on sale).

              Comment on this reviewHelp Icon(earn points)

              (8 of 15 customers found this review helpful)

               
              5.0

              Perfect Liquid wrench

              By 

              from Kansas City, KS

              About Me Auto Enthusiast

              Verified Buyer
              Level 2

              Pros

              • Can Withstand Use
              • Easy To Use
              • Reliable

              Cons

                Best Uses

                  Comments about Liquid Wrench Penetrating Oil:

                  I wanted to replace my broken Craftsman garage door opener, and some of the screws/nuts where stuck and a little rusty. Just gave it a couple of sprays of the liquid wrench, waited for 2 minutes or so then re attempted to undo them. I did however give them a tap with hammer to help loosen them up.

                  Comment on this reviewHelp Icon(earn points)

                  (9 of 18 customers found this review helpful)

                   
                  5.0

                  Fantastic product for clearing rust

                  By 

                  from East-Central, KY

                  About Me Auto Enthusiast, Truck Enthusiast

                  Ask me a question

                  Verified Buyer
                  Level 4

                  Pros

                  • Easy To Use
                  • Reliable

                  Cons

                    Best Uses

                    • Automotive Repair Shop
                    • Home Garage
                    • Upkeep

                    Comments about Liquid Wrench Penetrating Oil:

                    I bought this because it was on sale, but I'll be buying more! I used it (along with a cable luber) to try to break free my rusted heater cable in my truck. Within 5-7 min, the cable was moving freely like new again. This little bottle saved me big $ on a new cable!

                    Comment on this reviewHelp Icon(earn points)

                    (9 of 16 customers found this review helpful)

                     
                    5.0

                    Liquid Wrench Penetrant vs PB Blaster

                    Pros

                    • Easy To Use
                    • Reliable

                    Cons

                      Best Uses

                      • Automotive Repair Shop
                      • Home Garage

                      Comments about Liquid Wrench Penetrating Oil:

                      Stays in place and has deep penetrating capabilities. Used in direct comparison with competitor, Right vs Left, in the removal of shackles and struts on truck rear suspension untouched for nineteen years. Liquid Wrench out performed in removal of each bolt &/or nut.

                      This is a GREAT product. Just spray it on and give it time to work.

                      I highly recommend it to both professional and back-yard mechanics.

                      Comment on this reviewHelp Icon(earn points)

                      (26 of 44 customers found this review helpful)

                       
                      4.0

                      Works well on rusted parts

                      Profile Image

                      By 

                      from Duluth, MN

                      About Me Casual Driver

                      Verified Buyer
                      Helpful Reviewer

                      Pros

                      • Easy To Use

                      Cons

                        Best Uses

                        • Home Garage

                        Comments about Liquid Wrench Penetrating Oil:

                        I used to to loosen the fittings on a rusted on fuel filter. It took a few applications, but it eventually worked.

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                        Displaying reviews 1-10

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                        Do you have questions about this product?(earn points for answers!)

                         

                        Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

                        2 Questions | 2 Answers
                        Displaying questions 1-2
                        • Q:

                          will it stop tensioner pulleuy squeals
                          Asked on 2/27/2015 by teatea

                          1 answer

                          • CUSTOMER CARE

                            A:

                            Hi Teatea, glad to assist you! The Liquid Wrench Penetrating Oil (Part No. L1-12) should work fine for your project. This is a point-of-use penetrant for use by mechanics and do-it-yourselfer for disassembly of corroded pipe joints, rusted bolts and machinery, painted or gummed up metal mechanisms. Also used to clean typewriters, guns, and sports equipment.

                            Answered on 2/27/2015 by Steve from AAP
                        • Q:

                          Will this remove rust from hubcaps?
                          Asked on 9/20/2011 by CTS-V_BRO from Los Angelas, CA

                          1 answer

                          • CUSTOMER CARE

                            A:

                            Yes, this should work fine to remove the rust.

                            Answered on 9/22/2011 by Steve from AAP
                        Displaying questions 1-2

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