--- product_id: 57355323 title: "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" brand: "stp" price: "185.55 DT" currency: TND in_stock: true reviews_count: 13 category: "Stp" url: https://www.desertcart.tn/products/57355323-stp-ultra-5-in-1-petrol-system-cleaner-400ml-restores store_origin: TN region: Tunisia --- # 5-in-1 fuel system cleaner concentrated 400ml formula restores engine power & response 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 **Brand:** stp **Price:** 185.55 DT **Availability:** ✅ In Stock ## Summary > ⛽ Drive smarter, not harder — fuel your engine’s comeback! ## Quick Answers - **What is this?** 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 by stp - **How much does it cost?** 185.55 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/57355323-stp-ultra-5-in-1-petrol-system-cleaner-400ml-restores) ## 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 - • **Engine Longevity, Secured:** STP Wearguard tech reduces friction and protects vital components for long-term reliability. - • **Effortless Maintenance Ritual:** One 400ml bottle per tank—simple, quick, and perfect for busy professionals on the go. - • **Fuel Efficiency That Pays Off:** Optimizes combustion to boost MPG and reduce fuel costs—because every drop counts. - • **Made in the UK, Trusted Worldwide:** Premium quality assurance with a global reputation, giving your engine the care it deserves. - • **Peak Engine Performance, Unlocked:** Advanced 5-in-1 formula cleans injectors, valves & fuel system for smooth, powerful drives. ## Overview STP Ultra 5 in 1 Petrol System Cleaner is a concentrated 400ml fuel additive designed to clean and protect your petrol engine’s fuel system. It removes carbon deposits, restores power and throttle response, improves fuel economy, and reduces engine friction with advanced Wearguard technology. Easy to use and suitable for most petrol cars, it’s a cost-effective way to maintain engine health and performance between 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: Worked a treat - My son's Citroen DS3 started smoking a lot a few months back. I did all the checks, i.e. checked for coolant loss, oil loss, head gasket (water in oil causing mayo-like substance and Co2 gasses check), etc. All appeared clear, but the white smoking was getting worse and more dense. So took it to 2 different garages. First one did a diagnostic check and all the same checks I did and said it was an O2 sensor which I had changed. Still, the problem persisted. Tried a different garage, this time, based on my own research I suggested it might be the fuel injectors. Again, another diagnostic later and further checks later, they said not likely to be fuel injectors and it would need a much deeper investigation. As I was convinced it might be the fuel injectors, I decided to give this product a go. Added to a full tank and at first, it didn't seem to make any difference, not even more smokey as the instructions suggested it would be. However, 3-4 days later, the smoke appeared to be a lot less. But I didn't want to get my hopes too high. But almost 2 weeks later now, and there's no smoke 🥳 It flew through a recent MOT also. I plan to use the product maybe once more before the year ends. But for me, this product worked a treat and probably saved me a small fortune in further garage costs. ## 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. - ADVANCED 5 IN 1 PETROL SYSTEM CLEANER: Powerful concentrated fuel additive cleans injectors, intake valves and the entire fuel system to help restore peak petrol engine performance - RESTORES POWER & ENGINE RESPONSE: Helps remove harmful carbon deposits and fuel system build-up that can cause hesitation, rough idling, poor acceleration and reduced throttle response - IMPROVES FUEL ECONOMY & MPG: Engineered with advanced cleaning technology to optimise fuel combustion, improve petrol efficiency and support smoother everyday driving - HELPS PROTECT ENGINE COMPONENTS: Formulated with STP Wearguard technology to reduce friction, condition the fuel system and help maintain long-term engine health - EASY TO USE FUEL ADDITIVE: Simply pour one 400ml bottle into your fuel tank before refuelling; suitable for most petrol cars and ideal for regular preventative engine maintenance ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00NC1GZ7G | | Allergen Information | Allergen-Free | | Best Sellers Rank | 189 in Automotive ( See Top 100 in Automotive ) 10 in Fuel Systems | | Brand | STP | | Brand Name | STP | | Contains Liquid Contents? | Yes | | Country of Origin | China | | Customer Reviews | 4.6 out of 5 stars 2,114 Reviews | | Global Trade Identification Number | 05020144800125 | | Included Components | STP Ultra 5-in-1 Petrol System Cleaner 400ml | | Item Form | Liquid | | Item Type Name | STP Ultra 5-in-1 Petrol System Cleaner 400ml | | Item Volume | 400 Millilitres | | Item Weight | 400 Grams | | Item form | Liquid | | Item volume | 400 Millilitres | | Manufacturer | STP | | Material Features | Unscented | | Material Type Free | Alcohol Free | | Material feature | Unscented | | Model Number | GST76400EN | | Number of Items | 1 | | Part Number | GST76400EN | | Scent | Citrus | | Size | 400 ml (Pack of 1) | | Special Features | Concentrated | | Special Ingredients | acids | | Specific Uses For Product | Engine | | Specific uses for product | Engine | | Surface Recommendation | Metal | | Unit Count | 400.0 millilitre | ## 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 ## Images ![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 - Image 1](https://m.media-amazon.com/images/I/61-FCy1yDUL.jpg) ## Available Options This product comes in different **Size, 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. ### ⭐⭐⭐⭐⭐ Worked a treat *by N***Z on 4 July 2024* My son's Citroen DS3 started smoking a lot a few months back. I did all the checks, i.e. checked for coolant loss, oil loss, head gasket (water in oil causing mayo-like substance and Co2 gasses check), etc. All appeared clear, but the white smoking was getting worse and more dense. So took it to 2 different garages. First one did a diagnostic check and all the same checks I did and said it was an O2 sensor which I had changed. Still, the problem persisted. Tried a different garage, this time, based on my own research I suggested it might be the fuel injectors. Again, another diagnostic later and further checks later, they said not likely to be fuel injectors and it would need a much deeper investigation. As I was convinced it might be the fuel injectors, I decided to give this product a go. Added to a full tank and at first, it didn't seem to make any difference, not even more smokey as the instructions suggested it would be. However, 3-4 days later, the smoke appeared to be a lot less. But I didn't want to get my hopes too high. But almost 2 weeks later now, and there's no smoke 🥳 It flew through a recent MOT also. I plan to use the product maybe once more before the year ends. But for me, this product worked a treat and probably saved me a small fortune in further garage costs. ### ⭐⭐⭐⭐ Crisper engine response & increase in power. *by L***M on 1 May 2026* I use this product a lot for my various cars, especially if they are not being used too often. and will double dose if a car will be stood for a month or so. I find it really works, providing crisper engine response, slightly increase power / performance - acceleration and better engine idling and at all rev's - speeds. I'd have given it a 5 Star rating if it was around the £8.00 GBP mark ## 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 --- ## 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.tn/products/57355323-stp-ultra-5-in-1-petrol-system-cleaner-400ml-restores](https://www.desertcart.tn/products/57355323-stp-ultra-5-in-1-petrol-system-cleaner-400ml-restores) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-17*