Seafoam vs Lucas Fuel Injector Cleaner: What’s The Differences?

Seafoam vs Lucas Fuel Injector Cleaner
Seafoam vs Lucas Fuel Injector Cleaner

In order to keep things in shape, everything requires proper maintenance or it can run out of its working capacity. A vehicle is not just a sum of two pairs of wheels that take us to places. The interior construction is far more complicated and intertwined than we can imagine. Fuel injectors cleaners are products that are essential for your vehicle’s well-being.

Two of the most used fuel injector cleaners are Seafoam and Lucas. Lucas is a light oil and detergent and can also work as a lubricant. On the other hand, Seafoam works well too in case you have any tarnish in your fuel lines which can often plug your filter with the gunk. Seafoam is considered to be the better cleaner whereas, Lucas is great for maintenance.

Seafoam Vs Lucas Chart

Seafoam can be used in various sorts of automobiles where the Lucas fuel injector cleaners work well on heavy-duty trucks, tractors or other sturdy built vehicles. Seafoam cleans and lubricates whereas Lucas focuses more on daily maintenance. Lucas does clean well with the additional benefit of not burning the oil.

Model : SF-16

Model : 10512

Works in the Crankcase Oil to Liquefy Harmful Residues & Deposits

Greatly Reduces Harmful Nitrous Oxide Emissions in Your Enigine. 

Best Fuel Injector Cleaner in Terms of Effectiveness

It’s a Complete Fuel System Treatment for Your Engine

You Can Use for Any Gas or Diesel Fuel Blend

Lucas Fuel Is for Both Gasoline and Diesel Engines

Stabilizes Gas & Diesel Fuels up to 2 Years

Help You to Raises Mileage and Performance

EPA Registered Product

EPA Registered Product

Seafoam Is Known for Cleaning Sludge and Other Harmful Oil Formations

Its Totally Removes Knocking and Pinging. Raises Mpg and Performance

It Cleans Fuel Injector, Carburetor Passageways, Intake Valve and Chamber Deposits

Increases Power and Miles per Gallon by Burning Excess Exhaust Emissions

For Regular Fuel System Maintenance Add 1 Ounce per Gallon and for Cleaning Use 2 or More Ounces per Gallon

Recommended Dosage Is 2-3 Ounces of Fuel Treatment for Every 10 Gallons of Gasoline or Diesel Fuel

Heavy Duty Stabilizer

Lucas is pure petroleum and is a multi-purpose cleaner. As customers, we look for products that come with a package of service and not just conduct one job at a time. Lucas will surely not disappoint you as it dominates noise, heat and water issues. Lucas is preferably good for the muscularly built truck that has to carry a lot of weight with the bigger and more complex engine. Since it’s made of pure petroleum it prevents the engine from being dry and accelerates a quick start.

However, Seafoam is not designed specifically for a heavy-duty truck. It concentrates more on everyday usage for daily maintenance. Seafoam serves a various range of automobiles including bikes, cars, snow Mobil and lawnmower sort of average applicants.

Increases Oil Life Expectancy

Lucas Oil is known for enhancing the oil life span up to 50% which is half of the total! It will spare you a decent amount of money. It reduces the friction and decreases the heat which allows the oil to consume less. As a result the oil only gets burnt when needed and doesn’t evaporate spontaneously.

Seafoam is known for its adhesive lubricating plus point. Which accelerates the cold engine. It is not as impressive as Lucas when it comes to extending oil life expectancy yet in general Seafoam is adequate and doesn’t overdo or lack any crucial criteria.

Easy To Use

Lucas oil treatment is very easy to use as it comes along with a tune-up bottle. The top of the bottle is secured with a minimum of pouring point so you don’t have to worry about spilling in too much of the Lucas oil injector cleaner than needed.

The exterior of Seafoam has been designed with a clever mind to adjust with the arched edge of the vehicle so that the oil cleaner doesn’t leak or spill. The narrow built at the top of the bottle ensures easy to pour and prevents from over gush.

Improves Miles

One can spot the difference especially when you have the dirty engine in around 50-100 miles. It’s a 32 oz oil stabilizer that helps cool down the oil and helps start the cool engine to get to work fast. Thus saving you both time and money.

One of the most praised key features of Seafoam is that it offers great mileage. Even though it can’t extend oil life as well as Lucas, but the high mileage offering of 7,500 miles is definitely worth mentioning. Seafoam prevents the engine from untimely wear off, rust and helps engine performance towards high mileage.


Over usage of Seafoam can cause damage. If you don’t measure the quantity while pouring; it will not mix well and the ratio of the oil and the cleaning agent might mess up in a bad way. Thus, it will eventually cost you all fuel to thin out without its natural viscosity leaving you a hollow oil tank where the engine might not get provided with the oil when needed.

One of the biggest downfalls of Lucas is that it may thicken the oil for the additives it contains. Thus, promoting early wear off of the engine as the oil is slow to move and needs more time to rush to your engine.

Our Observation

The main difference between seafoam and Lucas fuel cleaner is that seafoam is a solvent while Lucas is an additive. This means that seafoam will dissolve built-up deposits in your fuel system, while Lucas will coat the inside of your fuel lines and keep them clean.

Seafoam is a cleaner and not an additive, so it will dissolve sludge and deposits in your fuel system. You can pour it into your gas tank to clean out the entire system, or you can suck some of the seafoam up into a vacuum hose and spray directly down into your intake manifold to clean out your intake valves and combustion chamber.

Lucas is an additive, so it will coat the inside of your fuel system (fuel lines, injectors) and form a protective barrier that prevents moisture from causing rust or corrosion. It also contains molybdenum disulfide which acts as an anti-wear agent and helps keep your engine running smoothly.

The Lucas oil treatment is better than seafoam at preserving the life of your fuel system, but it’s not as effective at removing deposits from the inside of your combustion chamber or intake valves.

Is Seafoam The Best When It Comes To Cleaning Fuel Injectors?

Answer- The Seafoam fuel injector is undoubtedly one of the best fuel injector cleaners and engine oil additives available today. Seafoam isn’t just limited to cars only in fact, it is sufficient for driving heavy sturdy rides too. It is scientifically engineered for use on gasoline and diesel vehicles.

Is Lucas Gas Treatment Good And Really Works?

Answer – The reviews overall for the Lucas oil are rather overwhelming and positive on average. People tend to use it in everything from diesel engines to lawnmowers and many observed better gas mileage. It appears to be one of the best products available in the market for keeping your engine in working order.


Based on the data from this review, we can conclude that both Lucas and Seafoam are excellent products to use as fuel system cleaners. However, it also appears that people tend to be more satisfied with their purchase of Seafoam over Lucas. This is likely due to several different factors such as price, ease of use, and quality of results.

In the end, it is up to you as to which product you decide to use for your vehicle. However, we would recommend Seafoam as a top choice over Lucas.



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