![Corrosion Block Liquid 4-Liter Refill - Non-Hazmat, Non-Flammable Non-Toxic [20004]](https://cdn.shopify.com/s/files/1/0855/3916/0358/files/72603XL.jpg?v=1706746955)
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Description
Corrosion Block Liquid 4-Liter Refill - Non-Hazmat, Non-Flammable Non-Toxic [20004]Liquid 4 Liter Refill Non Hazmat, Non Flammable & Non Toxic Corrosion Block is a clean fluid that actively protects metal using advanced polar bonding chemistry. Synthetic additives in Corrosion Block completely penetrate corrosion cellsreplacing the salt water which is then allowed to evaporate. Corrosion Blocks hydrophobic film remains to further protect the metal acting like an OFF SWITCH for corrosion. Unlike waxy products Corrosion Block then
Liquid 4-Liter Refill - Non-Hazmat, Non-Flammable & Non-Toxic
Corrosion Block is a clean fluid that actively protects metal using advanced polar bonding chemistry. Synthetic additives in Corrosion Block completely penetrate corrosion cells…replacing the salt water which is then allowed to evaporate. Corrosion Block’s hydrophobic film remains to further protect the metal acting like an “OFF SWITCH” for corrosion. Unlike waxy products Corrosion Block then leaves a clean clear moisture proof/hydrophobic film to prevent new corrosion formation. deeply penetrating into joints, connectors and around fasteners.
Features:
- Formulated to KILL CORROSION ON CONTACT from completely submerged, to equipment affected by high moisture content in the air
- Corrosion Block is a clean fluid that actively protects metal and electronics using advanced polar bonding chemistry
- Synthetic additives in Corrosion Block completely penetrate corrosion cells...replacing the salt water which is allowed to evaporate
- A hydrophobic film remains to further protect the metal acting like an "OFF SWITCH" for corrosion
- Corrosion Block is safe; it is non-toxic and non-flammable, also the propellant used in our aerosol products is non-flammable
- Used worldwide to protect electrical and mechanical equipment in "Safety First" situations such as Mining, Power Generating Stations, Fuel Depots, Gas and Petroleum refineries and more
Protects:
- Switches
- Pressure Gauges
- Motor Operated Valves
- Terminal Strips
- Circuit Breakers
- Locks
- Electronics
- Battery Terminals
- Running Lights
- Fuel Tanks
- Fuse Panels
- Connectors
- Alternator Leads
- Reefer Unit Wheels & Hubs
- Engines GPS Systems
Specifications:
- Type: Corrosion Protection
- Box Dimensions: 4"H x 7"W x 12"L WT: 8.05 lbs
- UPC: 770153200045
Brochure (pdf)
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.5 ★★★★★
Based on 15 reviews
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Product Reviews
★★★★★ 5
Great Stuff!
Size: 5 Liter, Style: 1 Pack, Configuration: 5W-30
Purchased for my husbands F-150 Truck , his engine was making a weird noise and he thought he was going to have to get a new engine but a friend recommended to change his oil and use this one. Boom, it worked! Couldn't believe it cleaned the engine out and the noise went away. Engine seems to be working fine now. Will definitely use again!
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Reviewed in the United States on May 13, 2026
★★★★★ 5
Super nice and smooth, so much power! Car feels nimbler. Worth the price
Size: 5 Liter, Style: 1 Pack, Configuration: 5W-50
I normally don't buy such expensive engine oils (normally buy cheap diesel truck oils add in MoS2). However, this one was well worth the purchase. Engine feels substantially smoother and quieter. After running for a while, the car feels a lot nimbler. More power, and as if it simply wants to keep moving rather than whining. It glides like a magic carpet
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Reviewed in the United States on January 17, 2026
★★★★★ 5
Give the green light to the green oil.
Size: 5 Liter, Style: 1 Pack, Configuration: 0W-20
Great oil. I've used Liqui-Molly in all my vehicles and it always performs. Theres very little burn off between changes and I noticed cleaner, quieter engine. I've used this in many different car brands, it never disappoints.
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Reviewed in the United States on May 17, 2026
★★★★★ 5
Car Runs Smooth, Less Friction, and Improved Performance at Start Up and Underload.
Size: 5 Liter, Style: 1 Pack, Configuration: 0W-20
I kept hearing things about this oil from a few friends that work on cars and from my "go-to" mechanic. I was previously using Mobile 1 0w-20 on my 2024 4Runner and my wife's 2025 Outback Onyx, and this time around I decided to try it on both cars as they needed an oil change. So far I am happy with the change for both cars. This is good oil quality, smooth engine running, and noticeable oil lubrication at cold start. I am getting better MPGs mileage on both cars. Also noticeable engine is running with smoother. I had to lower my car window to check that my 4runner was on as it was quiet. I will update my review after a second oil change with this oil on both cars.
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Reviewed in the United States on December 12, 2025
★★★★★ 5
Liquid Gold for Your Engine! 🛢️💥
Size: 1 Liter, Style: 1 Pack, Configuration: 5W-40
I didn’t think I’d get excited about motor oil, but here we are—Liqui Moly Molygen 5W-40 has officially made me feel like a car enthusiast. If you're serious about keeping your engine purring like a kitten, this stuff is like giving it a spa day with an energy drink chaser.
First off, this isn’t just any old motor oil—it’s high-tech motor oil. We’re talking German engineering at its finest. The neon green color? Oh yeah, it looks as cool as it sounds, and trust me, when you see that green oil running through your engine, you know you're in for some serious performance. 🟢💯
Why do I love it?
Engine protection: This oil is like a security blanket for your engine. It reduces friction like a champ, so parts glide smoothly, which means less wear and tear. Translation: your engine will thank you with better performance and a longer life.
Fuel efficiency: You’re not just getting a smoother ride; you’re also saving some bucks at the pump. The way this oil cuts down on friction helps with fuel economy. It’s like the gift that keeps on giving.
Cold start-ups? No problem. Whether you’re dealing with a chilly morning or scorching summer, this oil handles temperature extremes like a boss. It maintains its viscosity so your engine stays protected regardless of the weather.
And did I mention the Molygen technology? It’s not just a fancy name—this oil has additives that coat your engine in a protective film, keeping it running smooth and reducing the risk of damage, even during high-stress drives.
Final thought: If you're looking for an oil that’s as serious about your car’s performance as you are, the Liqui Moly Molygen 5W-40 is it. Your engine will run smoother, quieter, and stronger, and you’ll feel like you’ve just upgraded your car’s lifeblood. 🚗💨 Plus, that neon green color? Total conversation starter at the garage. 😉
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Reviewed in the United States on September 23, 2024