Vaseline on Car Battery Terminals

Last Updated on March 19, 2023 by Ryan

Vaseline can be used as a lubricant on car battery terminals to protect them from corrosion. The Vaseline acts as an insulator and helps prevent electrical shorts that can cause the battery to fail or malfunction. Applying a thin layer of Vaseline on the terminal will help create a barrier between metal surfaces, preventing moisture and other corrosive elements from forming.

This will keep your battery in good condition for longer periods of time and reduce the need for frequent maintenance. It is important to note that too much Vaseline could lead to problems with current flow, so it should only be applied sparingly.

Vaseline is an effective way to protect car battery terminals from corrosion. By coating the terminals with a thin layer of Vaseline, you can help reduce oxidation and ensure that your car battery continues to run smoothly without any issues. The Vaseline will also act as a lubricant which makes it easier to remove and replace the terminal connections in the future.

This simple step can save you time and money on costly repairs down the road!

WARNING! Vaseline To Clean Your Car Battery? – Tekzilla Clips

What to Put on Battery Terminals to Prevent Corrosion

One way to prevent corrosion on battery terminals is to apply a thin layer of petroleum jelly (Vaseline) or dielectric grease. This helps create an airtight seal between the terminal and the cable connection, which prevents oxidation from occurring in moist conditions. Additionally, it can reduce electrical resistance when making connections and help protect against arcing by keeping moisture out of the contact area.

How to Put Petroleum Jelly on Battery Terminals

For optimal battery performance, it is important to ensure that the terminals of your battery remain clean and free from corrosion. Applying a thin layer of petroleum jelly or dielectric grease can help protect against oxidation and reduce terminal buildup. To apply petroleum jelly on your battery terminals, simply remove any dirt or debris with a cloth, then use cotton swabs to spread an even coating of the jelly over each terminal.

Be sure not to get any petroleum jelly onto other parts of the battery as this could cause damage.

Wd40 on Battery Terminals

WD-40 can be used to clean battery terminals and connections. It is important to ensure that all dirt, grease and corrosion are removed before applying WD-40 as it will help the electrical current flow more easily between the battery and whatever device you’re using it for. To use WD-40 on a battery terminal, first disconnect it from any power source.

Then spray some of the product onto an old rag or paper towel, then wipe away any debris from around the terminal connection point. Finally, spray some WD-40 directly onto both terminals and let it sit for several minutes before wiping off any excess with a dry cloth or paper towel.

Battery Terminal Grease

Battery terminal grease is a type of lubricant that helps protect the electrical connections on your car battery, keeping it running smoothly and efficiently. It’s designed to keep electricity flowing freely between the terminals, preventing corrosion or other damage caused by contact with moisture or dirt. Battery terminal grease also prevents arcing between the contacts, which can lead to major engine problems.

Applying a thin coat of this special grease every few months will help ensure your vehicle’s battery stays in peak working condition.

Vaseline on Car Battery Terminals


Is Vaseline Good for Electrical Connections?

No, Vaseline is not recommended for use on electrical connections because it can break down over time, causing a decrease in the effectiveness of the connection. Additionally, due to its relatively high viscosity and greasy nature, it may cause dirt or dust particles to build up around the connection which could lead to corrosion and other problems. Instead of using Vaseline for electrical connections, a waterproof grease like dielectric grease should be used as it provides superior lubrication without leaving behind any residue that could interfere with performance.

What is the Best Lubricant for Battery Terminals?

The best lubricant for battery terminals is dielectric grease. This type of grease serves as a barrier between the metal and corrosive substances, and it also prevents oxidation from occurring. It provides superior protection against moisture, acid, dust, salt spray, dirt and other contaminants that can damage the connection point.

The consistency of this grease makes it easy to apply on battery terminals without running or dripping off onto surrounding surfaces. Additionally, its non-conductive properties will not interfere with electrical connections or cause short circuits in any way.

Should You Grease Battery Terminals?

Yes, you should grease battery terminals. Greasing the battery terminals helps to prevent corrosion and ensure that electricity is flowing properly through the system. It also provides a layer of protection between the leads and terminal posts so that they don’t corrode or wear down as quickly due to contact with moisture in the air or other elements.

When greasing your battery terminals, use a non-conductive material such as dielectric grease or petroleum jelly to insulate against electrical current leakage from one terminal post to another. This will help keep your battery running smoothly for longer periods of time and protect it from any external damage caused by moisture or other elements.

Does Vaseline Prevent Corrosion?

Vaseline, or petroleum jelly, is a common household product that can be used to protect metal surfaces from corrosion. When applied to the surface of metals such as iron and steel, Vaseline forms an airtight seal which prevents moisture from coming in contact with the metal. This helps prevent oxidation—a process where oxygen combines with the metal and causes it to corrode—thus preserving its integrity over time.

Additionally, since Vaseline does not contain any acids or alkalines that could further damage the surface of metals, it can also be used as a lubricant for components like nuts and bolts when assembling machines or tools. In short, Vaseline is an effective way to prevent corrosion on both ferrous and non-ferrous metals alike.


In conclusion, Vaseline can be a helpful tool in ensuring that car battery terminals are protected and working properly. It is important to remember, however, that there are other ways of protecting the terminals from corrosion such as using dielectric grease or petroleum jelly and making sure to keep them clean. Regardless of which form of protection you use, it’s essential to check your battery terminals regularly for any signs of deterioration or corrosion so that they remain in good condition and function properly.


Leave a Comment