Sea Foam Fuel Injector Cleaner Review


The gasoline you put in your engine is far from pure or stable and, with daily use, deposits of carbon material can build up in your fuel injectors and intake valves.

If you drive your car in cooler climates or are doing a lot of stopping and starting around the city, you’re more likely to get a build-up because small amounts of fuel are left in the system when you stop the car.


These solidify and affect your engine’s performance. Over time, the carbon build-up can lead to lower fuel economy, poor performance, increased carbon monoxide emissions, stalling and hard starts. In simple terms, your car will not run as well or last as long if you let carbon deposits build up in the engine. And the gas bill can really hit you in the back pocket!

Fuel injector cleaners are products that can either be added to the oil or the fuel tank. The additive works through the fuel injectors, intake valves and carburetors, removing gum and carbon build-up.

Performance will be significantly improved if your fuel system is free of carbon build-up. The process couldn’t be simpler and you don’t need any mechanical know-how to use it: simply choose your product, add it to your oil or fuel tank, and it’ll get rid of all those funky deposits as you drive around!


There are a wide range of fuel injector cleaners out there but are they all created equally? Some are pure petroleum and some are synthetic or detergent based compounds. Some are suitable for all fuel types and engine designs while others are made for specific motors. Today we compare the specs, effectiveness and consumer reviews of three market-leading products to see which will keep your engine running at its very best.

 – Sea Foam SF-16 Motor Treatment

This fuel injector cleaner has been trusted by professional mechanics for more than 65 years and is now available for home automotive enthusiasts. It is suitable for both petrol and diesel engines and is 100% pure petroleum. It breaks down deposits without harming the gaskets, seals and oxygen sensors your car needs to run effectively.

After well over one thousand reviews on, this product maintains an average consumer rating of 4.7 out of 5 stars. More than 80% of users rate it the full 5 stars and it is Amazon’s Number 1 Best Seller.

Royal Purple 11722 Max-Clean Fuel System Cleaner and Stabilizer

This product promises a 3 in 1 service. The synthetic fuel additive cleans, stabilizes and improves horsepower. A yearly application is recommended and it is suitable for either gas or diesel powered engines of any make up from naturally aspirated to turbocharged. After more than 400 customer reviews, this fuel injector cleaner has an overall customer rating of 4.5 out of 5 stars with 70% of users giving it the full 5 stars.

Red Line (60103) Complete SI-1 Fuel System Cleaner

This detergent based fuel additive promises to clean fuel injectors, carburetors, valves and gas chambers in neglected engines. It is suitable for petrol engines but not recommended for gas or LPG.

It is safe for continual use and manufacturers recommend one full bottle to the tank to restore the engine to close to 100% efficiency. After more than 450 reviews, the product has an overall rating of 4.6 out of 5 stars and more than 70% of users rated it the full 5 stars.


If you want to get more miles to the gallon, prevent rough starts and stalling and enjoy overall better performance from your engine, an injector cleaning fuel additive should be your first port of call. But which product will give your engine a superior clean and keep it working better for longer?

In terms of price, performance and customer satisfaction, I conclude that Sea Foam SF-16 Motor Treatment is the best fuel injector on the current market.

The savings you make in fuel alone will soon have it paying for itself! Why not flick over there, read a few more reviews and check out whether the deal’s still on? You’ll be amazed at the difference in your car, boat or truck engine’s performance.

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