---
product_id: 70729827
title: "- Quicksilver Quickleen Engine and Fuel System Cleaner"
brand: "quicksilver"
price: "€ 71.36"
currency: EUR
in_stock: true
reviews_count: 8
category: "Quicksilver"
url: https://www.desertcart.it/products/70729827-quicksilver-quickleen-engine-and-fuel-system-cleaner
store_origin: IT
region: Italy
---

# Treats 5 gal fuel per 1 oz Removes carbon deposits fast Prevents engine knocking & seize-up - Quicksilver Quickleen Engine and Fuel System Cleaner

**Brand:** quicksilver
**Price:** € 71.36
**Availability:** ✅ In Stock

## Summary

> ⚡ Power up your ride with every fill—because your engine deserves the best!

## Quick Answers

- **What is this?** - Quicksilver Quickleen Engine and Fuel System Cleaner by quicksilver
- **How much does it cost?** € 71.36 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.it](https://www.desertcart.it/products/70729827-quicksilver-quickleen-engine-and-fuel-system-cleaner)

## Best For

- quicksilver enthusiasts

## Why This Product

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

## Key Features

- • **Engine Longevity Guard:** Prevents knocking and piston seize-up, extending engine life and reliability.
- • **Every Fill-Up Essential:** Use at every tank fill to maintain smooth, powerful engine response without hassle.
- • **Fuel Efficiency Booster:** Optimized formula cleans injectors, valves, and spark plugs for peak performance.
- • **Universal Compatibility:** Works seamlessly with all gasoline grades and ethanol blends—no compromises.
- • **Trusted Marine-Grade Quality:** Endorsed by boating pros for restoring power and smooth idle after long downtime.

## Overview

Quicksilver Quickleen Engine and Fuel System Cleaner is a premium 32 oz additive designed to clean carbon deposits from critical engine components, improve fuel efficiency, and prevent engine knocking. Compatible with all gasoline and ethanol blends, it treats 5 gallons of fuel per ounce and is recommended for use at every fill-up to maintain optimal engine performance and longevity.

## Description

Buy Quicksilver 8M0058681 Quickleen Engine and Fuel System Cleaner, 32 Oz.: Fuel System Cleaners - desertcart.com ✓ FREE DELIVERY possible on eligible purchases

Review: Quality Quicksilver products - Quality engine and fuel system. Had contaminated fuel and this is really helping smooth out the rough idle.
Review: Read the reviews - This Stuff Works! - Our 75hp Mercury outboard hadn't been run for a over a year. Prior to that it just didn't seem to have the power it should & also sounded like it had bit of an intermittent miss. I read through some boating forums and saw the high praises for this product as being better than the Marine Seafoam. It is made by Mercury so figured I didn't have much to lose and everything to gain. On the recommendation to "shock" the system and clean the fuel system and de-carbon the power head properly, I used a 3oz. to one gallon ratio. I had a small portable 3 gal. fuel tank and once on the lake I switched over from the onboard boat fuel tank to the portable. Almost instantaneously I could tell/feel the difference with the motor....seriously, scouts honor! I continued to run out the small tank varying throttle positions at times. When done with the "shock treatment" the motor was back to running smooth & powerful as it should. Made our fishing trip in MN a pure joy. I'm a firm believer now and will always use this additive as directed for sustained maintenance whenever fueling up. PS....don't forget to add a quality fuel stabilizer as this product does not contain those pertinent ingredients. Fish on.

## Features

- Gas treatment and injector cleaner for use with all grades of gasoline and ethanol-blend fuel
- Quickly and thoroughly removes carbon deposits from carburetors, injectors, intake valves, spark plugs, piston crowns and cylinder heads
- Prevents engine knocking and piston seize-up
- Can be used at every fuel tank fill-up — 1 oz. treats 5 gallons of gasoline
- Manufacturer part number 8M0058681

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00BO8A2P0 |
| Best Sellers Rank | #11,236 in Automotive ( See Top 100 in Automotive ) #28 in Fuel Additives #33 in Fuel System Cleaners |
| Brand Name | Quicksilver |
| Color | Unspecified |
| Customer Reviews | 4.8 4.8 out of 5 stars (936) |
| Date First Available | March 3, 2013 |
| Included Components | End Product & Information |
| Item Dimensions LxWxH | 10.5 x 7.12 x 8.25 inches |
| Item Package Dimensions L x W x H | 11.65 x 5.75 x 3.46 inches |
| Manufacturer | Quicksilver |
| Material | Other |
| Model Name | Quicksilver Boating Hardware And Maintenance Supplies |
| Number of Items | 1 |
| Package Weight | 0.81 Kilograms |
| Part Number | 8M0058681 |
| Size | 32 Fl Oz (Pack of 1) |
| Style | Quickleen |
| Suggested Users | unisex-adult |

## Product Details

- **Brand:** Quicksilver
- **Item Form:** Liquid
- **Item Volume:** 32 Fluid Ounces
- **Specific Uses For Product:** Car, Engine
- **Unit Count:** 32.0 Fluid Ounces

## Images

![- Quicksilver Quickleen Engine and Fuel System Cleaner - Image 1](https://m.media-amazon.com/images/I/51KN2b-d0OL.jpg)

## Available Options

This product comes in different **Pattern** options.

## Questions & Answers

**Q: what is the shelve life after opening the bottle ?**
A: Check the date of expiration on the bottle label, first.  Usually, sealed 2cycle oil has a shelf life of about 5 years. Once opened, you should use it before second season, about 24 months.  I suppose that has something to do with the petroleum distillates and evaporation?    That’s as far as my knowledge goes.

**Q: So, how many bottles are included at this price and how many fluid ounces are in each bottle?**
A: Lol, really? This only shows one bottle, so it's for buying one bottle. Glen is kidding...

**Q: Is this good for mercruiser 3.0?**
A: Yes , it is the best on the market.

**Q: We just received this….. did they change the  packaging? It came in a tall round bottle.**
A: Did you order from our store? Or from Amazon?
If you ordered from our store, please contact us with an order number.
The packaging did not change, Mercury/Quicksilver has both options available: a 12 oz bottle and also a 32 oz (like the one in the picture)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Quality Quicksilver products
*by P***L on November 9, 2025*

Quality engine and fuel system. Had contaminated fuel and this is really helping smooth out the rough idle.

### ⭐⭐⭐⭐⭐ Read the reviews - This Stuff Works!
*by Z***N on October 9, 2024*

Our 75hp Mercury outboard hadn't been run for a over a year. Prior to that it just didn't seem to have the power it should & also sounded like it had bit of an intermittent miss. I read through some boating forums and saw the high praises for this product as being better than the Marine Seafoam. It is made by Mercury so figured I didn't have much to lose and everything to gain. On the recommendation to "shock" the system and clean the fuel system and de-carbon the power head properly, I used a 3oz. to one gallon ratio. I had a small portable 3 gal. fuel tank and once on the lake I switched over from the onboard boat fuel tank to the portable. Almost instantaneously I could tell/feel the difference with the motor....seriously, scouts honor! I continued to run out the small tank varying throttle positions at times. When done with the "shock treatment" the motor was back to running smooth & powerful as it should. Made our fishing trip in MN a pure joy. I'm a firm believer now and will always use this additive as directed for sustained maintenance whenever fueling up. PS....don't forget to add a quality fuel stabilizer as this product does not contain those pertinent ingredients. Fish on.

### ⭐⭐⭐⭐⭐ Excellent product
*by F***X on September 9, 2025*

Excellent project. Took care of my performance issues in a couple of hours.

## Frequently Bought Together

- Quicksilver Quickleen Engine and Fuel System Cleaner
- Quicksilver Quickare Fuel Treatment
- Quicksilver Quickstor Fuel Treatment and Stabilizer

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---

*Product available on Desertcart Italy*
*Store origin: IT*
*Last updated: 2026-03-07*