Best Fuel Injector Cleaners for High Mileage: Detailed Review

An effective fuel injector cleaner helps prevent costly car repairs. They dissolve dirt and muck, preventing clogging. Thus, your vehicle performs at its optimal best. However, like with everything, there is no shortage of fuel injector cleaners on the market. But you cannot choose just anything. To make your work easier, we’ve reviewed some of the best fuel injector cleaners available. Read through the reviews and choose one that you think will serve your purpose well.

7 Best Fuel Injector Cleaners

1. Regane High Mileage Fuel System Cleaner

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Regane High Mileage Fuel System Cleanser comes in 6oz and 12oz bottles. It effectively cleans intake valves and ports, cylinder heads, piston tops, and combustion chambers. The cleaner removes ethanol and water corrosion and reduces vehicle wear. It also prevents carbon buildup. The 6oz bottle is designed for cars over 75,000 miles. The cleaner significantly lowers fuel consumption and increases gas mileage.

Pros

• The cleaner can be safely used in turbocharged and supercharged vehicles.
• An oxygen-sensor-safe product

Cons

• It may not perform equally well on all vehicles.

2. Red Line 60103 Complete SI-1 Fuel Cleaner

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There is not one but several great things about this product, which makes it figure second on this list of the best fuel injector cleaners. First off, the product can handle high and low engine temperatures because of its innovative upper-cylinder lubricant. It thoroughly cleans combustion chambers and intake valves. So, it is ideal for improving the performance of your engine. The best thing about this cleaner is its ingredients. The PEA content of this product falls between 30 to 50% and is fully verified. Its ingredients are natural, synthetic, and highly rated. So, you can be assured of getting quality cleaning.

Pros

• Unique formulation that both cleanses and prevents future moisture buildup.
• The cleaner is especially effective for cleaning upper cylinders, pistons, and carburetors.

Cons

• Does not work on diesel vehicles.
• It cannot prevent ethanol buildup.

3. Techron Complete Fuel System Cleaner

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True to its name, the Techron Complete Fuel System Cleaner cleans and protects the full fuel system. It contains strong detergents that can effectively eliminate tough deposits, including sensors contaminated with sulfur. The product has consistently received a 4-star rating from users because of its ability to improve acceleration. This system cleaner also reduces dangerous exhaust emissions. It is best suited for gas-powered auto engines.

Pros

• Suitable to use on all gas-powered vehicles.
• Highly affordable
• Easily accessible. 

Cons

• The product is designed for cleaning the entire fuel system. So, it cannot be used simply as a fuel injector cleaner.
• The product is available in almost all auto parts stores, online, and in many Chevron gas stations.

4. Sea Foam Icy 5 Fuel Injector Cleaner

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Sea Foam Icy 5 cleaner is designed to thoroughly clean fuel injectors. It’s designed to restore injector spray patterns, which pave the way for better engine performance. The cleaner is easy to use. All you need to do is add an entire bottle to your fuel tank. One bottle is capable of treating up to 25 gallons. When used regularly, the cleaner can prevent hesitations, rough idling, and hard starts. It can be safely added with the brand’s motor treatment.

Pros

• The cleaner can be used with different kinds of gasoline fuel injection engines.
• It also works with capless tanks.

Con

• It can make the engine rattle

5. LIQUI MOLY Jectron Fuel Injection Cleaner

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This cleaner contains a mix of additives that effectively clean the fuel system. You can use it for carbureted and port-injected gasoline engines. The cleaner also provides outstanding corrosion protection. This product performs exceptionally well for race cars. Although you won’t see the results immediately, regular usage will go a long way in improving the performance. Most users can see results within 30 to 60 minutes.

Pros

• It can be safely used with particulate filters and catalytic converters.
• Suitable for cars with high HP.

Con

• The bottle of cleaner is not easy to use.

6. Berryman Products B-12 Chemtool Fuel Injector Cleaner

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Berryman Products is another one of the best fuel injector cleaners. It has a 100% high-energy solvent technology that dissolves all kinds of fuel residues. It keeps the injectors, valves, and intake ports perfectly clean. This cleaner can be used on the fuel tank, fuel system, and fuel lines. Regular usage of this product increases the injector’s life. For optimal ongoing maintenance of the fuel system, we recommend using this cleaner every third tank.

Pros

• This injector cleaner contains a mix of powerful solvents and detergents to clean worn-out fuel systems fully.
• It is oxygen sensor-safe.
• The product is available in commercial and consumer sizes.

Con

• The bottle does not have a good design.

7. Lucas Upper Cylinder Lubricant and Injector Cleaner

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This cleaner scores high on various fronts. These include quality, smoothness, performance, cleaning, and dependability of the auto components. A noteworthy advantage of this cleaner is that it also makes the engine quieter. This product suits diesel vehicles best and is affordable. You get the entire 32-ounce bottle for less than 20 dollars. This is quite impressive, considering the kind of performance this product gives. Another thing worth mentioning is the absence of solvents in this cleaner’s mix of oils and additives. It leads to the better burning of fuel by thoroughly cleaning the carburetors and injectors. The product also effectively takes care of low-sulfur diesel fuel.

Pros

• Easy to use
• Eliminates carbon buildup

Cons

• Poor packaging

Summing Up

A fuel injector cleaner helps you keep your vehicle in top condition by remedying congested fuel injectors. Using one regularly facilitates seamless fuel flow. All of the fuel injector cleaners mentioned in this post perform their jobs remarkably well. Go through them and research more deeply on the ones you feel are the most beneficial for your vehicle.