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Lucas Oil

Lucas Oil 10003 Fuel Treatment - 1 Quart

  • Based on 23,646 reviews
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Availability: 12 left in stock
Fulfilled by Amazon
Arrives Thursday, Jun 18
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Size: 32 Fluid Ounce


Number of Items: 1


Features

  • The worlds #1 fuel additive for both gasoline and diesel engines
  • A great tune-up in a bottle treats gasoline, diesel fuel and increases MPG
  • Cleans and lubricates the fuel system, including fuel injectors, carburetor and combustion chamber
  • Improves fuel economy by burning excess exhaust emissions
  • Increases power and acceleration by improving fuel flow and reducing deposit buildup
  • Neutralizes sulfur and other harmful contaminants present in the fuel system
  • Increases the life of pumps and injectors
  • Prevents rust and corrosion, prolonging the life of engine and fuel system components
  • Complies with federal low sulfur content requirements for diesel motor vehicles and non-road, locomotive and marine diesel equipment engines
  • Safely replaces the need for lead in older engines without causing harmful effects

Description

A powerful blend of oils and additives that contain no SOLVENTS. Designed to increase power and fuel mileage and also lower exhaust emissions through a more complete combustion. Lucas Fuel Treatment is formulated for both gasoline and diesel engines, carbureted or fuel injected. It gives your fuel system what it really needs - a blend of super slick oils and additives with a high detergent action that allows the engine to operate at maximum efficiency. Also, it cleans and lubricates the carburetor and injectors and causes the fuel to burn more thoroughly for increased power and less fuel consumption. Lucas Fuel Treatment should definitely be used in vehicles that require leaded fuel because it actually replaces the benefits of lead in gasoline without causing harmful emissions. Use it to pass smog tests. Finally, it totally neutralizes the harmful effects of low sulfur diesel fuel. Lucas Fuel Treatment complies with the federal low sulfur content requirements for use in diesel motor vehicles and non-road, locomotive and marine diesel equipment engines. The recommended dosage is 2-3 ounces of Fuel Treatment for every 10 gallons of gasoline or diesel fuel. Pour Lucas Fuel Treatment directly into fuel tank. Exceeding the recommended dosage is not harmful to your vehicle. 5.25oz Bottle - One bottle treats up to 25 gallons of fuel. 1 Quart/32oz Bottle - One bottle treats up to 100 gallons of fuel. 1 Gallon/128oz Bottle - One bottle treats up to 400 gallons of fuel.

Material: Plastic


Brand: Lucas Oil


Package Information: Bottle


Liquid Volume: 1 Quarts


Item Weight: 898 Grams


Brand Name: Lucas Oil


Global Trade Identification Number: 32


Manufacturer: Lucas Oil


Unit Count: 32.0 Fluid Ounces


UPC: 049807800031 049807400033 049807100032


Number of Items: 1


Part Number: 051-587


Model Number: LUC10003


Included Components: 1x 1 Quart bottle


Warranty Description: 30 Days


Item Type Name: Fuel Injtr Cleaner


Container Type: Bottle


Liquid Volume: 1 Quarts


Item Weight: 898 Grams


Material: Plastic


Part Interchange Info: 10003


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jun 18

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Similar Products

Top Amazon Reviews

    • Noticeable improvement in engine performance!
Size: 128 Fluid Ounce Number of Items: 1
Review Image by Trinidad
I’ve been using this Lucas Fuel Treatment in my vehicle and the results are great. My engine runs much smoother, and I’ve actually noticed a slight increase in my MPG as advertised. It’s a very easy way to keep the fuel injectors clean and neutralize poor quality gas. This 1-gallon size is a fantastic value since it treats up to 400 gallons. Highly recommended for any car owner! ... show more
Reviewed in the United States on January 24, 2026 by Trinidad
    • great product
Size: 128 Fluid Ounce Number of Items: 1
This fuel treatment works well and is easy to use. After adding it to the tank, the engine ran smoother and seemed more responsive. It helps with performance and gives peace of mind about keeping the fuel system clean. No issues or side effects, and it does exactly what it claims. Overall, a solid product and a good value. ... show more
Reviewed in the United States on February 5, 2026 by joseph D Pergolotti
    • Great product, read full review. I take my review serious
Size: 128 Fluid Ounce Number of Items: 1
This a great product that I have been using for years in my 2011 Ram 3500 Cummins diesel. I have no affiliation with this company and this has been a test of time. My truck now has 201,000 miles on it and I have had zero issues with my engine and or any part of my fuel system, this mixture will treat your fuel system, for moisture, raise your cetene levels for more horse power (noticeable), add fuel milage, keep your injectors and injector pumps clean and lubricated, keep your compression brake clean and working properly. NOTE!!! I mix this 50/50 with Marvels Mystery oil about 16oz per 34Gal of diesel on every fill up, well worth the price. ... show more
Reviewed in the United States on January 22, 2026 by Travelman
    • Another no brainer from Lucas
Size: 128 Fluid Ounce Number of Items: 1
Let me start off by saying I can't speak to the MPG increase that others claim - I'm not saying that it isn't there, but all of my machines are gas guzzlers at heart to the point I simply don't pay attention. That said, I add Lucas Fuel Treatment to everything I own from my C8 Corvette, my boat with the 496 MAG HO, truck, jet skis, mowers, pressure washer, 4 wheelers, side by side, etc. Along with some other 5 star products that I'll mention below. My primary reason for use is it's an upper cylinder lubricant. I do also run SeaFoam Marine in all of my equipment as well mainly for cleaning and fuel stabilization - I prefer Marine over the original SeaFoam because it does not contain alcohol. I'm not saying that Lucas doesn't do the above because it does, but Lucas is much thicker making it a better lubricant (in my opinion) where SeaFoam Marine is somewhat thinner and to me the cleaning properties are a lot better as that's what it was designed to do years ago. You can mix and match these as you please, and you can't overdose your engine. Here's my strategy: Lucas Fuel Treatment: great upper cylinder lubricant for heavy use situations (high RPM use like 4 wheeler engines, tracking your car, heavy towing etc) Add pretty much every time I fill up, and I add a heavy dose to my truck before I do any towing. Also keep topped up on Lucas heavy duty oil stabilizer. SeaFoam Marine: one of the best injector/carburetor cleaners you can use and an equally good fuel stabilizer. I've added this to 2 stroke fuel mix for my weed eater almost 4 years ago on the same fuel and still runs flawlessly. I add to my road vehicles every so often for cleaning and before any long term storage, however I add to my smaller engines almost every fill up (ATVs, UTVs, mower, jet skis, etc) If you don't want to spend the extra money on SF Marine, the original is still fantastic. But if you are running non-ethanol fuel in your small engines, it makes sense to use the Marine so you don't add any alcohol to your fuel. Had a hesitating fuel injected 4 wheeler that had been sitting for months, stalling at idle. Added a HEAVY dose of SF Marine through it (to the point I could smell it burning out of the exhaust), did a few 3/4 throttle runs up and down the road and it cleared it out quickly. Ran as normal it for the rest of the trip and completely eliminated the stalling/hesitation. STAR BRITE Star Tron: when heavy cleaning is needed. Have injectors or carbs that are heavily clogged and gummed up? This stuff should loosen it up. Minimal lubricant properties, only use when needed. All in all, you can't go wrong with anything from Lucas or the above brands. I've tried to turn people on to these before and have been met with "it's snake oil, not needed" however I haven't had a SINGLE fuel issue in anything I own since following this strategy. Today's fuel sucks and a little preventative maintenance goes a long way. ... show more
Reviewed in the United States on March 27, 2024 by DD
    • A great fuel additive/treatment for an older truck.
Size: 32 Fluid Ounce Number of Items: 1
I have been using Lucan Oil/Fuel Treatment in my 2004 F250 for about four years now. It seems to run better (I really don't drive it all that much, unless I need lumber or feed) or for hunting. The truck seems to give me several more miles per gallon (when one is only getting 10-12 mpg) it's a nice thing. For the price, it's a simple treatment, putting it in the gas tank doesn't take more than a couple of minutes, and the results are well worth it. I had started using it in my 2017 Subaru, when for some reason, it had developed a slight miss, and Lucan appeared to have cleared that up. Some folks swear by this product, some don't. You be the judge. I like it for my truck. ... show more
Reviewed in the United States on March 21, 2026 by RC
    • I have always trusted the Quality of Lucas products.
Size: 32 Fluid Ounce Number of Items: 1
Been using 4oz per 13/15 gallon fill-up for years and have never had carbon build-up issue. Car has 100k miles on motor and have never had to replace a fuel injector. Honestly, not sure if this product is the reason for the reliability. I have always trusted the Quality of Lucas products.
Reviewed in the United States on May 9, 2026 by Matt
    • Best cleaner made
Size: 128 Fluid Ounce Number of Items: 1
This contains PEA which is a great cleaner for engines. I have used this forever in my vehicles, and never had any problems. My current ride has 214,000, runs like new and uses no oil. Very few contain this chemical. And here is a trick. Get a large Heinz ketchup bottle with a squirt end and save it. Transfer the contents of the gallon into this, then fill an original Lucas one shot tube. Takes a little time but saves a lot of money. ... show more
Reviewed in the United States on May 7, 2026 by John H.
    • It absolutely works!
Size: 128 Fluid Ounce Number of Items: 1
In 15 years of having Amazon Prime, I probably wrote 3-4 reviews, but I believe this product really deserves one. As many others, I was skeptical at first, but with rising gas costs and the desire to keep my 3021 Jeep Cherokee 3.2L/V6 engine in optimal state, I bought and gave this a try. With all certainty, I declare this product excellent and working. I added a out 8oz to every tank and monitored miles/gallon ratio on longer trips (100-400 miles). The fuel consumption improved drastically, and the engine roared with pleasure. I will buy this treatment as long as they produce it. Highly recommended! ... show more
Reviewed in the United States on April 19, 2026 by Nola Restesan

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