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Dura Lube Severe Fuel System® Cleaner is highly concentrated and precisely formulated to clean the entire fuel delivery system including Fuel Injectors, Carburetors, Valves, Ports and Intake Manifolds.
- 100% Safe for all vehicles including GM & GMC, will not void warranties
- Helps remove valve stem gum. A cleaner running engine helps improve fuel mileage
- Compatible with all grades of gasoline fuel including E-10, E-15, and E-85 Ethanol blends
- Not for use in diesel engines
- Will not harm catalytic converters
- Restores Injector Flow
- Adds Corrosion Protection
- Stabilizes Poor Quality Gasoline
Directions: One 16 fl. oz. bottle treats up to 42 gallons of fuel. Use at least every 3000 miles.
Dura Lube Severe Fuel System® Cleaner is an advanced solution designed to clean and restore your vehicle's entire fuel system for optimal performance. Over time, harmful carbon deposits can accumulate in fuel injectors, intake valves, and combustion chambers, reducing engine efficiency, causing rough idling, and increasing fuel consumption. Dura Lube's powerful formula penetrates and breaks down these deposits, ensuring a cleaner and more efficient fuel system.
This fuel system cleaner not only restores lost power but also improves fuel combustion, leading to better throttle response and increased fuel efficiency. By eliminating carbon buildup, it helps reduce engine hesitation, knocking, and misfires, providing a smoother and quieter ride. It's ideal for high-mileage vehicles or engines that have started to show signs of wear.
Dura Lube Severe Fuel System® Cleaner also provides ongoing protection, preventing future carbon buildup and ensuring long-lasting cleanliness. It's compatible with all gasoline engines, including those using ethanol-blended fuels, making it a versatile and essential tool for maintaining your vehicle's fuel system. Use Dura Lube during regular maintenance or when you notice a drop in performance for immediate and effective results.
Mobile Mechanic
Reviewed in the United States on February 25, 2025
Great product used it for years but I switched to Sta bil 360
Ironman
Reviewed in the United States on September 30, 2024
I had an engine light on that was related to catalytic converter. I used the additive as directed and the light went off. I continue to use this product.
gary gibbs
Reviewed in the United States on July 22, 2024
The product works as advertised my vehicle is running great
Jimbo
Reviewed in the United States on January 15, 2024
Two bottles of this stuff and my check engine light PO420 error came back. Does not seem to have any effect on the catalytic converter
Brent miller
Reviewed in the United States on June 8, 2023
Put this in a few fill-up's ago. Car runs smoother, batter acceleration, better gas milage. Will repeat after next oil change.
ruth slang
Reviewed in the United States on March 22, 2021
This fuel system cleaner was the most effective Ive found!Results were immediate with greater gas mileage. I was seeing very little improvement with the other cleaners. The product arrived in 2 days and was easy to use. Great product!
Don Dett
Reviewed in the United States on August 30, 2020
I've used this product for years in all my vehicles, including my 2001 Dodge Intrepid R/T. Without hesitation, I put a bottle in a full tank of fuel after every oil change, (3K-5K) to maintain the entire fuel delivery system from the fuel pump to the injectors. Though my car has over 184K miles, the 3.5 V-6 H.O. engine runs smooth, idles quietly and accelerates hard as if she was still new...I truly believe in the effectiveness of this product, as well as the DuraLube Engine Treatment product. It also is noteworthy, to know the brand was founded in 1986 and the corporate office is still in Gahanna, Ohio....it's truly a first-class American-Made product, your vehicles best friend for longevity of its fuel system operation along with improved fuel economy and performance as the result...bravo!!
Taylor
Reviewed in the United States on January 7, 2019
I have used a lot of fuel system cleaners, but this one was the most effective out of all of them; Results within the first tank.... I improved by 2 miles to the gallon... That's 48 more miles on a full tank, which translates to almost a full round trip between work and home. I was seeing very little improvement with the other cleaners, and this one tore through the carbon issues immediately. The tank wasn't even empty yet, and I was already well over 1 mile extra per gallon. I will be using this going forward and highly recommend. I am using this in a 2011 Silverado with a 5.3L, 325, LC9.
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