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Lucas Oil 10003 Fuel Treatment is the world’s #1 fuel additive designed for gasoline and diesel engines. It cleans and lubricates the entire fuel system, improves fuel economy, boosts power, neutralizes harmful contaminants, and protects against rust and corrosion. Compatible with a wide range of vehicles, it delivers noticeable performance gains and longer engine life with every use.

| ASIN | B000ARPVOI |
| Best Sellers Rank | #161 in Automotive ( See Top 100 in Automotive ) #3 in Diesel Additives |
| Brand | Lucas Oil |
| Brand Name | Lucas Oil |
| Container Type | Bottle |
| Customer Reviews | 4.8 out of 5 stars 24,616 Reviews |
| Global Trade Identification Number | 00049807100032 |
| Included Components | 1x 1 Quart bottle |
| Item Form | Oil |
| Item Type Name | Fuel Injtr Cleaner |
| Item Weight | 898 Grams |
| Liquid Volume | 1 Quarts |
| Manufacturer | Lucas Oil |
| Material | Plastic |
| Model Number | LUC10003 |
| Number of Items | 1 |
| Package Information | Bottle |
| Part Interchange Info | 10003 |
| Part Number | 051-587 |
| Recommended Uses For Product | Automotive |
| Specific Uses For Product | Gasoline and Diesel Engines, Vehicles, Marine, Non-Road, Locomotive |
| UPC | 049807800031 049807400033 049807100032 |
| Unit Count | 32.0 Fluid Ounces |
| Warranty Description | 30 Days |
T**D
Noticeable improvement in engine performance!
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!
C**E
Excellent additive for all gas engines
This additive works in y Acura, Honda, and lawn tractor, making each run smoother and quieter. Using it all the time. Try it, you'll like it.
T**N
Great product, read full review. I take my review serious
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.
J**I
great product
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.
R**C
A great fuel additive/treatment for an older truck.
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.
M**T
I have always trusted the Quality of Lucas products.
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.
J**.
Best cleaner made
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.
J**Y
Quality product
Nice to be able to get this product for 4 or 5 bucks less than the local corporate corrupt parts stores! Been using it for years and does the job! No having to be harassed about having a reward card- how you get hacked!
C**N
buen producto
buen producto, lo utilizo varias veces al año y se nota en el rendimiento del motor, vendedor de 10, envio rapido
V**A
Ottimo addittivo
Indispensabile per auto Kg metrate, ne basta poco in un pieno
S**.
Excelente aditivo
Excelente aditivo, a muy buen precio tanto para diésel y gasolina muy recomendable para cuando el combustible no es de tan buena calidad. Actualización 01/06/19 Llevo 3 años usándolo y es excelente, literal del rendimiento que da y performance se paga solo(uso dentro de la CDMX) muy, muy bueno.
W**D
Quality product, that works.
Can't go wrong with any Lucas products, Amazon pricing is very competitive, with on-time delivery. Really saves on fuel!
M**R
Nice
It improves well, always trust lucas products 👏
Trustpilot
2 months ago
1 month ago