---
product_id: 4988471
title: "Lucas Oil 10003 Fuel Treatment - 1 Quart"
brand: "lucas oil"
price: "€ 35.46"
currency: EUR
in_stock: true
reviews_count: 8
category: "Lucas Oil"
url: https://www.desertcart.de/products/4988471-lucas-oil-10003-fuel-treatment-1-quart
store_origin: DE
region: Germany
---

# Boosts fuel economy up to 25%+ Cleans & lubricates entire fuel system Prevents rust & corrosion for engine longevity Lucas Oil 10003 Fuel Treatment - 1 Quart

**Brand:** lucas oil
**Price:** € 35.46
**Availability:** ✅ In Stock

## Summary

> ⛽ Power up your ride, save green, and leave the gunk behind!

## Quick Answers

- **What is this?** Lucas Oil 10003 Fuel Treatment - 1 Quart by lucas oil
- **How much does it cost?** € 35.46 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.de](https://www.desertcart.de/products/4988471-lucas-oil-10003-fuel-treatment-1-quart)

## Best For

- lucas oil enthusiasts

## Why This Product

- Trusted lucas oil brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Engine Armor Protection:** Neutralizes harmful contaminants and prevents rust to extend engine life.
- • **Total Fuel System Detox:** Eliminates deposits in injectors, carburetors & combustion chambers for peak performance.
- • **Universal Compatibility:** One bottle fits all—cars, trucks, motorcycles, boats & more, making maintenance effortless.
- • **Power & Acceleration Boost:** Unlock smoother, faster rides with improved fuel flow and reduced buildup.
- • **Fuel Efficiency Game-Changer:** Experience up to 25% better MPG and save at the pump every mile.

## Overview

Lucas Oil 10003 Fuel Treatment is the world’s #1 fuel additive designed for gasoline and diesel engines. This 1-quart bottle cleans, lubricates, and protects your entire fuel system, improving fuel economy, boosting power, and preventing rust and corrosion. Compatible with a wide range of vehicles, it ensures smoother engine performance and longer component life while meeting federal low sulfur standards.

## Description

A powerful blend of oils and additives designed to increase power and fuel mileage and lower exhaust emissions through a more complete combustion. Enjoy a clean and efficiently functioning fuel system for improved performance and save money with enhanced fuel economy. Protect your engine and fuel system components from rust and corrosion while passing smog tests with ease. Can be added to your tank every 3,000 miles to avoid carbon and gunk buildup and prevent problems in your fuel system

Review: Happy with lucas oil fuel treatment - I recently tried out the Lucas Oil 10003 Fuel Treatment in my car, and I'm happy with the results. I noticed a smoother engine performance and improved fuel efficiency. I use it during long drives, and it has been quite handy. Plus, it's wallet-friendly. Oh, and the freezing temperature in my apartment didn't bother me while pouring it into my tank. Overall, a good buy for maintaining my vehicle's health.
Review: Works Great. - Excellent product. ‘99 BME E39 540/6 Speed. Was getting 16-17 mpg before. Now 25 mpg. Is it worth the $, technically yes because it cleans injectors.. great value for the money as well as the performance.

## Features

- The world’s #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

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000ARPVOI |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #130 in Automotive ( See Top 100 in Automotive ) #4 in Diesel Additives |
| Brand | Lucas Oil |
| Brand Name | Lucas Oil |
| Compatible with Vehicle Type | Car, Truck, Motorcycle, ATV, Boat, Lawn Mower, etc. |
| Container Type | Bottle |
| Customer Reviews | 4.8 out of 5 stars 23,959 Reviews |
| Global Trade Identification Number | 00049807100032 |
| Included Components | 1x 1 Quart bottle |
| Item Height | 3.3 inches |
| Item Type Name | Fuel Injtr Cleaner |
| Item Weight | 898 Grams |
| Liquid Volume | 1 Quarts |
| Manufacturer | Lucas Oil |
| Manufacturer Part Number | 10003 |
| Package Information | Bottle |
| UPC | 049807400033 049807100032 |
| Unit Count | 32.0 Fluid Ounces |
| Vehicle Service Type | Car, Truck, Motorcycle, ATV, Boat, Lawn Mower, etc. |

## Product Details

- **Brand:** Lucas Oil
- **Liquid Volume:** 1 Quarts
- **Package Information:** Bottle
- **Vehicle Service Type:** Car, Truck, Motorcycle, ATV, Boat, Lawn Mower, etc.
- **UPC:** 049807400033 049807100032

## Images

![Lucas Oil 10003 Fuel Treatment - 1 Quart - Image 1](https://m.media-amazon.com/images/I/616euPEi4YL.jpg)

## Available Options

This product comes in different **Size, Number Of Items** options.

## Questions & Answers

**Q: Will gas mileage increase**
A: I drive (and now use this in) a 1996 Toyota 4Runner. Prior to its use I'd averaged 17mpg, then performed a replacement on plugs, wires, and air filter (upgrading to a K&N); in addition to cleaning the MAF and throttle body (all on my own, mind you!). 
I now average anywhere between 19.5 (city) and just under 25 (highway).
I'm not sure just how much of a fuel increase can be contributed to this product, but I no longer go without it!

**Q: Would keeping this in the car in hot Texas heat be an issue?**
A: OF COARCE ITS A DANGEROUS ISSUE !! Storing any flamable liquid in a car is very dangerouse , especially a hot car !! you put yourself at risk of combustion from the heat & also combustion if you get in a accident !!  buy a tiny bottle of lucas fuel additive , its about 5.5 oz.s !! fill that up and insulate it in trunk to keep it cool . then when you fill up ? you will have a bottle ready to put in your tank !! instead of hauling around a gallon of the stuff .

**Q: Whats difference between this and the fuel treatment 5 oz**
A: Their is no difference other than the packaging

**Q: Will it help remove P0420 code?**
A: 2 bottles of Lucas oil, one gas refill apart, helped with my P0420 Code on Infiniti QX60 engine light. With the 2nd bottle, the light was gone. It worked like a charm. I will continue to keep the fuel tank clean moving forward. Tip : don't wait for the fuel tank to be completely empty before you refill.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Happy with lucas oil fuel treatment
*by V***E on January 6, 2026*

I recently tried out the Lucas Oil 10003 Fuel Treatment in my car, and I'm happy with the results. I noticed a smoother engine performance and improved fuel efficiency. I use it during long drives, and it has been quite handy. Plus, it's wallet-friendly. Oh, and the freezing temperature in my apartment didn't bother me while pouring it into my tank. Overall, a good buy for maintaining my vehicle's health.

### ⭐⭐⭐⭐⭐ Works Great.
*by S***. on December 7, 2025*

Excellent product. ‘99 BME E39 540/6 Speed. Was getting 16-17 mpg before. Now 25 mpg. Is it worth the $, technically yes because it cleans injectors.. great value for the money as well as the performance.

### ⭐⭐⭐⭐⭐ Put a Tiger in Your Tank!
*by W***S on January 1, 2026*

Hold on to your hat! This stuff is incredible. First use: About 4 ounces in a full tank. No effect. Second Use: About 6 ounces; no noticeable difference. Third use: About 8 ounces in a full tank of gas. About half way through the third tank, the car turned into a veritable tiger. It absolutely screams off the line, without the earlier engine jump rise at the start. Smooth and fast. Very quick off stop lights and while passing. Much quieter, too. Like new. I have a 2007 Hyundai Azera 3.3L V6. This has been great engine, with only the valve cover gaskets and alternator replaced, beyond regular oil/tires/brakes. And the valve cover problems are a known issue with this engine and year. In fact, Hyundai replaced the gaskets on the Santa Fe using this 3.3L engine. (But not the Azera.)

## Frequently Bought Together

- Lucas Oil 10003 Fuel Treatment - 1 Quart
- Lucas Oil 10130 Pure Synthetic Oil Stabilizer - 1 Quart
- Lucas Oil 10512 Deep Clean Fuel System Cleaner - 16 Ounce

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*Product available on Desertcart Germany*
*Store origin: DE*
*Last updated: 2026-01-27*