---
product_id: 5573910
title: "10020 Upper Cylinder Lube/Fuel Treatment - 5.25 fl oz."
brand: "lucas oil"
price: "€ 12.51"
currency: EUR
in_stock: true
reviews_count: 13
category: "Lucas Oil"
url: https://www.desertcart.fi/products/5573910-10020-upper-cylinder-lube-fuel-treatment-5-25-fl-oz
store_origin: FI
region: Finland
---

# Boosts MPG & power Cleans & lubricates fuel system Prevents rust & corrosion 10020 Upper Cylinder Lube/Fuel Treatment - 5.25 fl oz.

**Brand:** lucas oil
**Price:** € 12.51
**Availability:** ✅ In Stock

## Summary

> ⛽ Power up your ride, save fuel, and leave the competition behind!

## Quick Answers

- **What is this?** 10020 Upper Cylinder Lube/Fuel Treatment - 5.25 fl oz. by lucas oil
- **How much does it cost?** € 12.51 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/5573910-10020-upper-cylinder-lube-fuel-treatment-5-25-fl-oz)

## 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 Guardian:** Protects injectors, pumps, and combustion chambers from harmful deposits and corrosion.
- • **Eco-Friendly Tune-Up:** Reduces exhaust emissions and neutralizes sulfur for cleaner, greener rides.
- • **Maintenance Made Easy:** Add every 3,000 miles to keep your fuel system spotless and your engine running smooth.
- • **Universal Power Boost:** Works seamlessly with gasoline and diesel engines to increase acceleration and power.
- • **Fuel Economy Game-Changer:** Enhances mileage by optimizing combustion for every mile you drive.

## Overview

Lucas Oil 10020 Upper Cylinder Lube/Fuel Treatment is a top-rated universal fuel additive that cleans, lubricates, and protects your fuel system. Compatible with gasoline and diesel engines, it improves fuel economy, boosts power, reduces emissions, and prevents rust and corrosion—ensuring longer engine life and peak performance with every tank.

## 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: 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!
Review: 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.

## 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 | B0006305RY |
| Automotive Fit Type | Universal Fit |
| Best Sellers Rank | #126 in Automotive ( See Top 100 in Automotive ) #3 in Fuel Additives |
| Brand | Lucas Oil |
| Customer Reviews | 4.8 4.8 out of 5 stars (24,100) |
| Date First Available | June 27, 2017 |
| Exterior | Per Item Description |
| Global Trade Identification Number | 00049807100209 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 3.2 ounces |
| Item model number | LUC10020 |
| Manufacturer | LUCAS OIL |
| Manufacturer Part Number | 10020 |
| Model | _ |
| OEM Part Number | 10020 |
| Product Dimensions | 8 x 1.43 x 1.23 inches |
| Size | 5.25 Fluid Ounce |
| UPC | 049807400200 |
| Vehicle Service Type | Car |

## Product Details

- **Brand:** Lucas Oil
- **Liquid Volume:** 155 Milliliters
- **Package Information:** Bottle
- **UPC:** 049807400200
- **Vehicle Service Type:** Car

## Images

![10020 Upper Cylinder Lube/Fuel Treatment - 5.25 fl oz. - Image 1](https://m.media-amazon.com/images/I/61nQy4nemAL.jpg)

## Questions & Answers

**Q: Will gas mileage increase**
A: Yes, I drive a 2020 Toyota Corolla SE and I race the engine a lot. I use this every time I do an oil change. My mileage is at 32k atm, but some gasolines I use aren't always the best. When I don't use Lucas my rpm when going on freeway speeds they sit at around 1,800 but when I use Lucas they drop down to about 1,000 rpm and it saves a lot of gas. Then again I keep up to date with the maintenance and I've been using Lucas since I got the car and this is my daily.

**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

### ⭐⭐⭐⭐⭐ Noticeable improvement in engine performance!
*by T***D on January 24, 2026*

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!

### ⭐⭐⭐⭐⭐ Great product, read full review. I take my review serious
*by T***N on January 22, 2026*

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.

### ⭐⭐⭐⭐⭐ 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.

## Frequently Bought Together

- Lucas Oil LUC10020 Fuel Treatment - 5.25 Oz, multi-colored
- Lucas Oil 10009 Transmission Fix - 24 Ounce, White
- Lucas Oil 10118 High Mileage Oil Stabilizer - 1 Quart

---

## Why Shop on Desertcart?

- 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016
- 🌍 **Shop Globally** — Access 737+ million products across 21 categories
- 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price
- 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members)
- 🔒 **Secure Payments** — Trusted payment options with buyer protection
- ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews

**Shop now:** [https://www.desertcart.fi/products/5573910-10020-upper-cylinder-lube-fuel-treatment-5-25-fl-oz](https://www.desertcart.fi/products/5573910-10020-upper-cylinder-lube-fuel-treatment-5-25-fl-oz)

---

*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-02-01*