---
product_id: 57355323
title: "– Ultra 5 in 1 Petrol System Cleaner 400ml, Restores Power and Protects your Engine, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK"
brand: "stp"
price: "5452 kr"
currency: ISK
in_stock: true
reviews_count: 13
category: "Stp"
url: https://www.desertcart.is/products/57355323-ultra-5-in-1-petrol-system-cleaner-400ml-restores-power
store_origin: IS
region: Iceland
---

# Fuel-saving tech Powerful deposit cleaner Advanced engine protection – Ultra 5 in 1 Petrol System Cleaner 400ml, Restores Power and Protects your Engine, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK

**Brand:** stp
**Price:** 5452 kr
**Availability:** ✅ In Stock

## Summary

> ⚡ Unlock your engine’s hidden power with every drive!

## Quick Answers

- **What is this?** – Ultra 5 in 1 Petrol System Cleaner 400ml, Restores Power and Protects your Engine, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK by stp
- **How much does it cost?** 5452 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/57355323-ultra-5-in-1-petrol-system-cleaner-400ml-restores-power)

## Best For

- stp enthusiasts

## Why This Product

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

## Key Features

- • **Fuel Economy Boost:** Reduces friction and optimizes fuel use to save your tank and wallet.
- • **Deposit-Free Engine:** Effectively removes carbon buildup for responsive acceleration and stable idling.
- • **STP Wearguard Technology:** Engineered protection that extends engine life and reliability.
- • **Easy, One-Bottle Treatment:** 400ml concentrated dose treats a full tank—maintenance made simple.
- • **Peak Engine Performance Restored:** Concentrated formula cleans & conditions fuel system for smoother rides.

## Overview

STP Ultra 5 in 1 is a concentrated petrol system cleaner designed to restore peak engine performance by cleaning deposits, reducing friction, and protecting engine parts. Trusted by thousands with a 4.6-star rating, it improves fuel economy and acceleration while being easy to use—one bottle treats a full tank, making it a cost-effective alternative to costly garage services.

## Description

Concentrated formula cleans and conditions fuel system, restoring peak engine performance. Reduces friction, protects parts, promoting better fuel economy.

Review: Good petrol system cleaner - I tried the STP Ultra 5 in 1 Petrol System Cleaner and I am really impressed with the results. I added the 400ml bottle to a full tank as recommended, and after just a few drives I could feel the difference. The engine runs smoother, the idle feels more stable, and acceleration is noticeably more responsive. It also seems to have reduced a bit of hesitation when pulling away. Fuel economy has slightly improved as well – not a massive change, but enough to notice over a couple of tanks. What I like is that it’s a concentrated formula, so one bottle is enough for a full treatment. It gives peace of mind knowing it’s helping to clean injectors, reduce carbon deposits, and protect the fuel system at the same time. Easy to use, good instructions on the bottle, and made in the UK which is a bonus. For the price, I think it’s excellent value – cheaper than a garage clean and helps keep the car maintained between services.
Review: Petrol additive that works - Used this over several years in different cars and always found that after a few miles the engine does appear to run smoother and acceleration is more responsive. Its an additive which does as it says on the bottle and good value for money.

## Features

- Causes serious eye irritation.
- May be fatal if swallowed and enters airways.
- Repeated exposure may cause skin dryness or cracking.
- Toxic to aquatic life with long lasting effects.
- STP's most advanced formula for petrol engines
- Engineered with STP Wearguard
- Saves fuel
- Restores peak performance
- Cleans up deposits

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B00NC1GZ7G |
| Best Sellers Rank | 94 in Automotive ( See Top 100 in Automotive ) 6 in Fuel Systems |
| Brand | STP |
| Customer Reviews | 4.6 4.6 out of 5 stars (4,450) |
| Date First Available | 5 Sept. 2014 |
| Item Weight | 400 g |
| Item model number | GST76400EN |
| Manufacturer | STP |
| Manufacturer part number | GST76400EN |
| Model | ST76400EN |
| Product Dimensions | 6 x 3 x 15 cm; 400 g |
| Special Features | Concentrated |

## Product Details

- **Brand:** STP
- **Item form:** Liquid
- **Item volume:** 400 Millilitres
- **Item weight:** 400 Grams
- **Number of items:** 1
- **Scent:** Citrus
- **Special feature:** Concentrated
- **Specific uses for product:** Engine
- **Surface recommendation:** Metal
- **Unit count:** 400.0 millilitre(s)

## Images

![– Ultra 5 in 1 Petrol System Cleaner 400ml, Restores Power and Protects your Engine, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK - Image 1](https://m.media-amazon.com/images/I/61-FCy1yDUL.jpg)

## Questions & Answers

**Q: I have a small 14 L motorcycle tank. How much of this 400 ml bottle should I put in?**
A: Half should be sufficient for that tank.it wont hurt just increases strength of you use more.

**Q: Can this be used on modern car engines. my mb vito 2015, diesel states no addeditive should be added to the fuel. some say it may damage the cat?**
A: If your user manual or manufacturer literature states that no additives should be used, then I would follow that directive. However, it is something that you might want to check with the manufacturer. If you use fuel from a recognised oil company, like shell or BP etc. you don’t need to use this cleaner as the additives are already in your fuel. If you use supermarket fuel like Asda or Sainsburys, then you would want to use an additive, but like I said, check with your manufacturer first.

**Q: I bought a set with diesel treatment. can i use them both at the same time?**
A: I would use one at a time just follow the instructions.

**Q: How does the MPG gains maintain for the full 4000 miles before the recommended time to add a new bottle to it?**
A: I renew after approx. 3500 miles and am satisfied with the MPG since I have been using the product.
An approx. gain of 3/4 MPG.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Good petrol system cleaner
*by E***S on 17 August 2025*

I tried the STP Ultra 5 in 1 Petrol System Cleaner and I am really impressed with the results. I added the 400ml bottle to a full tank as recommended, and after just a few drives I could feel the difference. The engine runs smoother, the idle feels more stable, and acceleration is noticeably more responsive. It also seems to have reduced a bit of hesitation when pulling away. Fuel economy has slightly improved as well – not a massive change, but enough to notice over a couple of tanks. What I like is that it’s a concentrated formula, so one bottle is enough for a full treatment. It gives peace of mind knowing it’s helping to clean injectors, reduce carbon deposits, and protect the fuel system at the same time. Easy to use, good instructions on the bottle, and made in the UK which is a bonus. For the price, I think it’s excellent value – cheaper than a garage clean and helps keep the car maintained between services.

### ⭐⭐⭐⭐⭐ Petrol additive that works
*by M***K on 25 October 2025*

Used this over several years in different cars and always found that after a few miles the engine does appear to run smoother and acceleration is more responsive. Its an additive which does as it says on the bottle and good value for money.

### ⭐⭐⭐⭐ Noticeable Improvement in Performance
*by A***A on 19 September 2024*

I recently used the STP Petrol Injector Cleaner in my car, and the difference in performance was noticeable almost immediately. This product is perfect for anyone looking to maintain their vehicle’s engine health and improve fuel efficiency. Performance: After using just one bottle in a full tank, I noticed smoother acceleration and improved throttle response. The engine felt more responsive, and the car idled more smoothly than before. It’s great for cleaning out those hard-to-reach parts of the fuel system that can get clogged over time. Fuel Efficiency: Over the next few fill-ups, I saw a slight improvement in my fuel consumption. While the difference wasn’t huge, every little bit counts, especially with rising fuel prices. This cleaner seems to help maintain the engine’s performance, which in turn keeps fuel efficiency up. Ease of Use: Using this cleaner couldn’t be simpler. Just pour the 200 ml bottle into your fuel tank when it’s full, and let it do the work as you drive. The instructions are clear, and there’s no need for any special tools or equipment. It’s a quick, hassle-free way to keep your fuel injectors clean.

## Frequently Bought Together

- STP Ultra 5 in 1 Petrol System Cleaner 400ml, Restores Power and Protects your Engine, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK
- STP Ultra 5 in 1 Diesel Fuel System Cleaner 400ml , Restores Power and Protects your Engine, Enhances Fuel Economy, Mechanical Car Cleaning Products, Concentrated Cleaning Formula, Made in the UK

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-01-31*