--- product_id: 48768196 title: "STP GST62450EN06 Engine Flush for Petrol & Diesel Engines 450 ml" brand: "stp" price: "€ 12.93" currency: EUR in_stock: true reviews_count: 13 category: "Stp" url: https://www.desertcart.hr/products/48768196-stp-gst62450en06-engine-flush-for-petrol-and-diesel-engines-450 store_origin: HR region: Croatia --- # cleans petrol & diesel engines 450 ml pro-grade flush UK-made trusted formula STP GST62450EN06 Engine Flush for Petrol & Diesel Engines 450 ml **Brand:** stp **Price:** € 12.93 **Availability:** ✅ In Stock ## Summary > ⚙️ Flush out the old, fuel your engine’s future! ## Quick Answers - **What is this?** STP GST62450EN06 Engine Flush for Petrol & Diesel Engines 450 ml by stp - **How much does it cost?** € 12.93 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/48768196-stp-gst62450en06-engine-flush-for-petrol-and-diesel-engines-450) ## 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 - • **Acid Neutralizer:** Safeguards engine parts by neutralizing damaging acids during flush - • **Deep Engine Detox:** Powerfully removes sludge & harmful deposits for peak performance - • **Leak Defense Boost:** Stops and prevents minor oil leaks to protect your engine’s integrity - • **Pro-Grade & Trusted:** Scientifically formulated, UK-made, and trusted by professionals for 60+ years - • **Dual Fuel Compatibility:** Optimized for both petrol and diesel engines—versatility that fits your ride ## Overview STP GST62450EN06 Engine Flush is a professional-strength, 450 ml treatment designed for petrol and diesel engines. Proudly made in the UK, it removes harmful sludge and deposits, neutralizes engine acids, and prevents minor oil leaks, ensuring cleaner, more efficient engine performance. Ideal for use at every oil change, it’s trusted worldwide for maintaining engine health and longevity. ## Description From the manufacturer STP Professional Series Why should I use STP Professional Series? STP is a trusted brand worldwide that has been established for over 60 years The range is scientifically formulated to help improve car performance STP Professional Series is suitable for all vehicles, diesel and petrol, no matter how old they are STP’s Professional Series range is a line of best-in-class engine care and maintenance products specially designed to meet the needs of a professional user. What is the difference between STP and STP Professional Series? STP Professional Series comprises of rigorously independently tested professional strength products, tailored at core motoring problems Has extra detergency, features & benefits, and is designed be used in conjunction with service intervals. Engine Flush Application For petrol & diesel engines Allow the car’s engine to run until it reaches normal operating temperature Turn engine off, then pour entire bottle into oil crankcase (treats 3-6L). Start engine and run at fast idle for 15 minutes Turn engine off and carefully drain oil whilst still hot Replace oil filter and add appropriate oil that meets vehicle specification For extra protection add a bottle of STP Oil Treatment Features & Benefits Helps neutralise harmful engine acids ­Removes harmful sludge and deposits Restores engine performance and efficiency Stops/prevents minor oil leaks Compatible with single, multigrade mineral or synthetic oils Should be used every oil change to maintain cleanliness and performance of all vital engine parts Heavy Duty Brake Parts Cleaner Remove wheel or brake drum as needed Protect rubber parts from spray Spray brake parts until dust and contaminants run off freely Air dry or wipe with clean, soft cloth Removes dirt and grime Reduces brake noise Prevents uneven braking Cleans without disassembly Can be used on drum brakes (linings and shoes, drums, cylinders and springs), and heavy duty disc brakes (caliper units, brake pads and rotors) Can also be used to degrease metal assemblies quickly and safely Carb Spray Cleaner For Carburettor and Carburettor Linkage With engine cool or only slightly warm, begin clean up. Remove air cleaner and apply Carb Spray Cleaner to the entire exterior surface of the carburettor Allow to soak for a minute and then re-apply to thoroughly remove dirt, grease and deposits. Start the engine and apply Carb Spray around the inside of the carburettor throat to remove deposits Important: Wash off immediately if sprayed on car finish. Can cause wax and paint streaking. Cleans carburettors, linkages and automatic chokes Keeps carburettors in peak condition Must not be sprayed on the car’s finish: can cause wax and paint streaking For Automatic Chokes With engine cool or only slightly warm, begin clean up To thoroughly clean automatic chokes, spray both ends of the choke valve while opening and closing it by hand T hen spray the vacuum cylinder to remove dirt and gum.S tart the engine and apply Carb Spray around the inside of the carburettor throat to remove depositsI IMPORTANT: Wash off immediately if sprayed on car finish. Can cause wax and paint streaking. Heavy Duty Engine Degreaser Warm the engine for 5 minutes, and turn off. Cover the distributor to keep it dry Spray generously on a warm (not hot), dry engine. Allow STP Professional Engine Degreaser to penetrate and loosen grease and grime for 10-15 minutes. Hose off with water. Use the minimum amount of water necessary to remove deposits. Uncover distributor and idle engine until dry. Penetrates and dissolves heavy dirt and deposits Is quick and easy to use Can be used on car, truck, van and tractor engines Must not be sprayed or dripped on external body paint, asphalt driveways or other surfaces affected by petroleum solvents – if contact occurs flush immediately with water Review: Brilliant - Outstanding. Used on Lawnmower with at least 1cm of sludge in bottom. Used 100ml and cleared after 15 minutes run time. Review: Happy with the result. - This made the goopy stuff come out of my engine after being sat still for extended period. I was warned that using this type of product doesn't come without risk. The goopy stuff may be what's holding the engine together. In the end, I had no problems after using but have heard stories about leaks caused afterwards. ## Features - May be fatal if swallowed and enters airways. - Repeated exposure may cause skin dryness or cracking. - Removes harmful sludge and deposits - Protects the engine during and after flushing - Stops/prevents minor oil leaks - Neutralises harmful acids - Proudly made in the UK ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B0095KKXB2 | | Automotive Fit Type | Universal Fit | | Best Sellers Rank | 589 in Automotive ( See Top 100 in Automotive ) 11 in Engine Oil Additives | | Brand | STP | | Brand Name | STP | | Compatible with Vehicle Type | ATV, Car, Motorcycle, Truck, UTV | | Container Type | Bottle | | Country Of Origin | United Kingdom | | Customer Reviews | 4.6 out of 5 stars 2,032 Reviews | | Global Trade Identification Number | 05018704354119 | | Included Components | Engine Flush | | Item Type Name | Engine Flush | | Item Weight | 428 Grams | | Liquid Volume | 450 Millilitres | | Liquid volume | 450 Millilitres | | Manufacturer | Armor All | | Manufacturer Part Number | GST62450EN06 | | Model Number | GST62450EN06 | | Number of Packs | 1 | | Package information | Bottle | | Packer Contact Information | Creative International | | Size | 450 ML | | Unit Count | 1 1 | | Vehicle service type | ATV, Car, Motorcycle, Truck, UTV | ## Product Details - **Automotive Fit Type:** Universal Fit - **Brand:** STP - **Liquid volume:** 450 Millilitres - **Package information:** Bottle - **Vehicle service type:** ATV, Car, Motorcycle, Truck, UTV ## Images ![STP GST62450EN06 Engine Flush for Petrol & Diesel Engines 450 ml - Image 1](https://m.media-amazon.com/images/I/71Glq+Fs6jL.jpg) ![STP GST62450EN06 Engine Flush for Petrol & Diesel Engines 450 ml - Image 2](https://m.media-amazon.com/images/I/71X1xpX-d+L.jpg) ![STP GST62450EN06 Engine Flush for Petrol & Diesel Engines 450 ml - Image 3](https://m.media-amazon.com/images/I/71v5LZDqR2L.jpg) ![STP GST62450EN06 Engine Flush for Petrol & Diesel Engines 450 ml - Image 4](https://m.media-amazon.com/images/I/71l8XGv2pIL.jpg) ![STP GST62450EN06 Engine Flush for Petrol & Diesel Engines 450 ml - Image 5](https://m.media-amazon.com/images/I/81hekm9aFBL.jpg) ## Available Options This product comes in different **Style** options. ## Questions & Answers **Q: Is this a fuel additive or is it the stuff you add to oil before you drain it?** A: Yes pour this into your oil when its warm, it's NOT A ADDITIVE for fuel.You need to mix this with your old oil, but don't drive! it's only for changing the oil.This is used to remove more sludge etc and keep your engine more cleaner.Make sure you Use for around 12-15minutes on high rev then, you MUST drain your old oil & change filter & fill up with new clean oil.I use this on every oil & filter change rarther than just draining the oil.(Works Well)Hope this was use full - any further help just ask **Q: Hi. Does anyone know if I could use this to flush a brushcutter engine. 35cc. Thanks** A: Hi there, it will only work with in the oil if the motor is two stroke this wont work. Many thanks Dave **Q: Is this safe to use in my scooter?** A: Don't see way not I use to use no my z 1000 **Q: Hi, could I use this on my 600cc motorbike, if so how much of it would I have to use? Cheers** A: Use it all, but check the instructions before you do!! Run the bike till the engine is nice and warm and the flush has had chance to work, then drain, change the oil and filter and your done. Sometimes you can put the flush in and run for a week of normal use, but personally I haven’t been brave enough to do this! Good luck. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Brilliant *by A***R on 25 April 2026* Outstanding. Used on Lawnmower with at least 1cm of sludge in bottom. Used 100ml and cleared after 15 minutes run time. ### ⭐⭐⭐⭐⭐ Happy with the result. *by B***L on 12 April 2026* This made the goopy stuff come out of my engine after being sat still for extended period. I was warned that using this type of product doesn't come without risk. The goopy stuff may be what's holding the engine together. In the end, I had no problems after using but have heard stories about leaks caused afterwards. ### ⭐⭐⭐⭐ Works well *by J***C on 1 April 2026* Seems to work well. I'll be trying it in my diesel engine next ## Frequently Bought Together - STP GST62450EN06 Engine Flush for Petrol & Diesel Engines 450 ml - Bosch P7006 - Oil Filter Car - Mannol 5 Litre Energy 5W-30 Engine Oil 7908 API SN/CH-4 ACEA C2 Premium Synthetic Ester Technology --- ## 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.hr/products/48768196-stp-gst62450en06-engine-flush-for-petrol-and-diesel-engines-450](https://www.desertcart.hr/products/48768196-stp-gst62450en06-engine-flush-for-petrol-and-diesel-engines-450) --- *Product available on Desertcart Croatia* *Store origin: HR* *Last updated: 2026-05-22*