---
product_id: 278217260
title: "9981 Petrol Injector Cleaner 2 x 300ml, Gasoline Fuel Injection System Cleaner Additive, Fuel Injector & Valve Deposit Remover for Petrol Engines, Helps Smooth Idle & Acceleration"
brand: "mannol"
price: "¥5074"
currency: JPY
in_stock: true
url: https://www.desertcart.jp/products/278217260-9981-petrol-injector-cleaner-2-x-300ml-gasoline-fuel-injection
store_origin: JP
region: Japan
---

# 2 x 300ml powerful formula boosts engine power & smooth idle removes tar & combustion residues 9981 Petrol Injector Cleaner 2 x 300ml, Gasoline Fuel Injection System Cleaner Additive, Fuel Injector & Valve Deposit Remover for Petrol Engines, Helps Smooth Idle & Acceleration

**Brand:** mannol
**Price:** ¥5074
**Availability:** ✅ In Stock

## Summary

> ⛽ Unlock your engine’s hidden power with every drop!

## Quick Answers

- **What is this?** 9981 Petrol Injector Cleaner 2 x 300ml, Gasoline Fuel Injection System Cleaner Additive, Fuel Injector & Valve Deposit Remover for Petrol Engines, Helps Smooth Idle & Acceleration by mannol
- **How much does it cost?** ¥5074 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/278217260-9981-petrol-injector-cleaner-2-x-300ml-gasoline-fuel-injection)

## Best For

- mannol enthusiasts

## Why This Product

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

## Key Features

- • **Smooth Start & Drive:** Eradicates jerking and starting issues linked to uneven fuel injection
- • **Trusted & Top-Ranked:** #1 in Oil & Fluid Additives with 4.2-star rating from 215 users
- • **Fuel Economy Optimizer:** Enhances fuel consumption and lowers exhaust emissions
- • **Power & Efficiency Boost:** Restores engine power and smooth acceleration, reducing misfires
- • **Deep Clean Fuel Injection:** Eliminates tar, scale & combustion residues for peak performance

## Overview

MANNOL 9981 Petrol Injector Cleaner is a premium 2 x 300ml additive designed to deep-clean fuel injection systems by removing tar, combustion residues, and scale. It enhances engine power, smooths idle and acceleration, optimizes fuel consumption, and reduces exhaust emissions. Highly rated and top-ranked in its category, it’s the go-to solution for professional-grade engine maintenance.

## Description

designed to help clean fuel injectors, valves and petrol fuel system components. The formula helps remove carbon, scale, tar and other deposits that can affect fuel delivery, idle smoothness and acceleration.

## Features

- PETROL INJECTOR CLEANER ADDITIVE – MANNOL 9981 is a gasoline fuel injection system cleaner designed for petrol engines to help clean fuel injectors, valves and fuel system components.
- REMOVES CARBON, TAR & DEPOSITS – Helps remove carbon, scale, tar and combustion residues from injectors and valves to support cleaner fuel delivery and better engine operation. Mannol lists these as key product properties for Injector Cleaner 9981.
- HELPS RESTORE SMOOTH IDLE – Designed to help address uneven fuel supply, rough idle, jerking, starting difficulty and poor acceleration caused by contaminated or uneven fuel injection.
- FOR GASOLINE / PETROL ENGINES – Suitable for gasoline engines including naturally aspirated and turbocharged engines, and especially for engines equipped with catalytic converters.
- 2 X 300ML FUEL ADDITIVE PACK – Twin pack for fuel system maintenance. Add to the fuel tank before refuelling and follow the product label dosage instructions for best results.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B074VZ2Y3N |
| Best Sellers Rank | #73 in Automotive ( See Top 100 in Automotive ) #1 in Oil & Fluid Additives |
| Brand | MANNOL |
| Customer Reviews | 4.2 4.2 out of 5 stars (222) |
| Date First Available | 1 May 2018 |
| Item Weight | 600 g |
| Item model number | 9981 |
| Manufacturer | MANNOL |
| Manufacturer Part Number | 9981 |
| Product Dimensions | 1 x 1 x 1 cm; 600 g |

## Images

![9981 Petrol Injector Cleaner 2 x 300ml, Gasoline Fuel Injection System Cleaner Additive, Fuel Injector & Valve Deposit Remover for Petrol Engines, Helps Smooth Idle & Acceleration - Image 1](https://m.media-amazon.com/images/I/61DpEZvR+GL.jpg)

## Questions & Answers

**Q: In instruction how to use it ?**
A: Empty it. In the fuel tank

## Frequently Bought Together

- MANNOL 9981 Petrol Injector Cleaner – Gasoline Fuel Injection System Cleaner Additive 2x 300ml
- Liqui Moly Engine Flush Plus, 300ml, 8374
- LIQUI MOLY CATALYTIC CLEAN (PACK OF 2)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-11-02*