Lucas Oil Fuel Treatment: Does It Clean Injectors and Improve MPG?

Lucas Oil's Fuel Treatment is one of their best-selling products. It claims to clean fuel injectors, boost cetane and octane, remove water, and improve fuel economy. Let's look at what it actually does.

What's In It

Lucas Fuel Treatment is a petroleum-based product containing detergent additives and upper-cylinder lubricants. The detergent package is designed to clean fuel injectors and intake valves of carbon deposits that accumulate over time.

Injector Cleaning: Does It Work?

For mild deposit buildup, yes — detergent additives in fuel treatments can soften and remove light injector deposits over several tanks of use. For severely clogged injectors, a professional injector cleaning service is more effective.

MPG Improvement

If your fuel economy has declined due to injector deposits, cleaning those injectors can restore some lost efficiency. However, if your injectors are already clean, there's limited room for improvement from a fuel treatment alone.

Water Removal

Lucas fuel treatment contains components that emulsify small amounts of water in the fuel, allowing it to pass harmlessly through the combustion process. This is particularly useful in vehicles that sit unused for extended periods.

Usage

Add to the fuel tank at every oil change or every 3,000–5,000 miles. Use one bottle per tank. It's safe for all gasoline and diesel engines.

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