Lucas Fuel System Cleaner Review

We really like the Lucas Oil Company range of products. They are purposeful, well-made products that aren’t overhyped. In this review, we’ll look at Lucas Fuel System Cleaner, to find out whether it meets the same level as other Lucas products.

About Lucas Fuel System Cleaner

The Lucas brand fuel system cleaner is called “Deep Clean Fuel System Cleaner”.

The Lucas company website states this product is designed to:

  • Greatly reduces harmful NOx emissions
  • Removes carbon deposits
  • Totally eliminates knocking and pinging
  • Raises mpg and power
  • Improves acceleration
  • Allow the use of lower octane fuels
  • Cleans entire fuel system and intake system
  • Lubricates fuel pumps for longer life
  • Low odor product, containing no alcohol – that causes corrosion
  • Oxygen sensor safe
  • Brings sluggish engines back to life

Just like it’s competitors, Lucas fuel system cleaner is available in a variety of sizes, from a 5.25-ounce bottle, a 16oz bottle and a 55-gallon drum for professional users.

Do I Need a Fuel System Cleaner?

Put simply, yes. Fuel systems become clogged with deposits of rust, moisture, debris – in particular, carbon. The carbon build-ups are most prevalent within the intake system and combustion chamber.

Internal combustion engines do not produce a complete, 100% burn of all fuel particles. Some of the unburnt matter can begin to accumulate in the intake passageways and inlets within the engine, even on top of the cylinders or valves.

Over time, this process can build up stubborn, baked on layers of soot that reduce engine performance and fuel economy. This happens over a long period, so the effect may not be entirely noticeable as it is such a gradual decrease in performance.

Any restriction within the engine, particularly in the combustion chamber will alter the engine performance, usually for the worse. The vehicle’s motor is designed to run on precisely calibrated metrics. If those figures change because of an altered combustion ration, then you’ll burn more fuel and get less power whilst doing so.

How does this Lucas Oil Deep Clean Fuel System Treatment work?

You just pour in the recommended dosage into your fuel tank. The product will do the rest.

Lucas Fuel System Cleaner contains a number of active agents to clean and revitalize the car fuel tank, lines, pump, and injectors.

All effective fuel system or injector cleaners must have a chemical known as Polyetheramine (PEA) within them, to stand a chance of cleaning out the sludge that’s built up. PEA is most effective on carbon, the main constituent of the engine choking build ups. The product also contains a Naphtha solvent designed to soften the deposits for re-burning, improve combustion efficiency and act as a carrier fluid for the PEA ingredient.

Unlike other products, that is all Lucas Fuel System Cleaner contains. There are no colouring chemicals or odor additives, meaning everything within the fuel system cleaner is entirely safe to use on the entire fuel system.

Will I notice a difference using Lucas Oil Deep Clean Fuel System Cleaner?

Yes, you will notice a difference, but this depends on your circumstances. It’s rare that using one of these products will make an immediate change, you’ll probably have to run the additive through several tanks of gas first.

The good news is that the smallest bottle, of 5.25 ounces, contains enough solution to treat up to 15 gallons. It’s recommended you use the fuel system cleaner every 3,000 to 4,000 miles in order to prevent buildups forming in the first place.

Why should I buy the Lucas Fuel System Cleaner over one of its rivals?

Bulk Sizing for Commercial Users

The 55-gallon drum is perfectly sized for garages and shops. Ordering in a larger quantity offers excellent value for money.

Trusted Manufacturer

Lucas Oil is a well-established company, with many years creating products used by drag racers, car owners, and workshops.

Lucas’ product goes a long way

With 5.25 ounces treating up to 15 gallons, this particular fuel system cleaner goes a long way. It’s priced very competitively also.

What have others said about this fuel system cleaner?

There are numerous independent testimonials available to read online, you should check those out. Generally speaking, Lucas Oil Fuel System Cleaner has very favourable reviews.

Just scanning through the Lucas official site, you’ll see that a variety of car and truck owners have benefited from using it.

One owner, who had a high mileage GMC Sierra thought his engine was breaking and used a scanner to find out that inject #5 was misfiring. He decided to try using Lucas Fuel System Cleaner before he replaced the injector.

Before treatment, the truck was running terrible. After 4 treatments, the check engine light had switched off and the engine was purring like a kitten. This particular owner now recommends it to everyone he knows.

Another user, who owns a 2013 Jeep Patriot felt that the throttle response was sluggish. After researching online, they found that they could possibly rectify the problem with a fuel treatment. They poured the cleaner into the tank and noticed an immediate difference, with the car running much better.

One final example, a 2003 Honda CRV driver started having poor idling problems and the engine cutting out. “Where on earth do you start?” the driver wondered. A mechanic wanted to charge her over $300 to locate and fix the problem.

Instead, she went to the local Honda dealer and they diagnosed the car as having a catalytic converter problem. She then picked up a bottle of Lucas Oil Fuel System Cleaner. The treatment worked, the car runs like it used to and she saved a lot of cash in the process!


Lucas is a trusted and established the brand with a great reputation for creating products that do exactly as they promise on the packaging. Used as a preventative to carbon deposit formations, this product will keep your fuel system in top condition.

When used over the course of a number of tanks of fuel, it will clean and revitalize the performance of your engine. It’s well worth checking out the reviews for yourself.

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