---
product_id: 57355323
title: "Ultra 5 in 1"
brand: "stp"
price: "€ 41.41"
currency: EUR
in_stock: null
reviews_count: 13
category: "Stp"
url: https://www.desertcart.hr/products/57355323-ultra-5-in-1
store_origin: HR
region: Croatia
---

# Boosts fuel economy by up to 5% Concentrated 400ml formula for full tank treatment Restores engine power & smoothness Ultra 5 in 1

**Brand:** stp
**Price:** € 41.41
**Availability:** ❌ Out of Stock

## Summary

> ⚡ Unlock your engine’s hidden power and save at the pump!

## Quick Answers

- **What is this?** Ultra 5 in 1 by stp
- **How much does it cost?** € 41.41 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/57355323-ultra-5-in-1)

## 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

- • **Wearguard Protection:** Reduces friction to extend engine lifespan
- • **Advanced Deposit Cleaner:** Eliminates carbon buildup for peak engine health
- • **Fuel Efficiency Maximizer:** Save more on every mile with enhanced combustion
- • **UK-Made Quality Assurance:** Trusted formula crafted with precision and care
- • **Engine Performance Restorer:** Experience smoother idling and quicker acceleration

## Overview

STP Ultra 5 in 1 Petrol System Cleaner is a concentrated 400ml formula designed to clean and condition your fuel system, restoring engine power, reducing friction, and improving fuel economy. Engineered with STP Wearguard, it effectively removes deposits and protects vital engine components, delivering smoother acceleration and better mileage. Made in the UK, this product offers a cost-effective alternative to costly garage treatments, backed by a 4.6-star rating from nearly 2,000 users.

## 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: Does what it says on the bottle - Easy to use, saw improvement between last tank and end of this tank in acceleration and responsiveness. Improved petrol mileage too

## 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 | 144 in Automotive ( See Top 100 in Automotive ) 7 in Fuel Systems |
| Brand | STP |
| Customer Reviews | 4.6 4.6 out of 5 stars (1,979) |
| 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 - Image 1](https://m.media-amazon.com/images/I/61-FCy1yDUL.jpg)

## Available Options

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

## 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.

### ⭐⭐⭐⭐⭐ Does what it says on the bottle
*by A***R on 26 February 2026*

Easy to use, saw improvement between last tank and end of this tank in acceleration and responsiveness. Improved petrol mileage too

### ⭐⭐⭐⭐ Improved the car a little
*by M***S on 4 March 2026*

Slight improvement in the running of the car.

## 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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**Shop now:** [https://www.desertcart.hr/products/57355323-ultra-5-in-1](https://www.desertcart.hr/products/57355323-ultra-5-in-1)

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*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-03-21*