--- product_id: 227031191 title: "Castrol Engine Shampoo 300mL" price: "4067 kr" currency: ISK in_stock: true reviews_count: 13 url: https://www.desertcart.is/products/227031191-castrol-engine-shampoo-300ml store_origin: IS region: Iceland --- # 10-minute quick idle treatment 85% sludge removal efficiency solvent-free, seal-safe formula Castrol Engine Shampoo 300mL **Price:** 4067 kr **Availability:** ✅ In Stock ## Summary > ⚙️ Clean Engine, Clear Advantage: Power Up Your Drive! ## Quick Answers - **What is this?** Castrol Engine Shampoo 300mL - **How much does it cost?** 4067 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/227031191-castrol-engine-shampoo-300ml) ## Best For - Customers looking for quality international products ## Why This Product - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Fast & Easy:** Just 10 minutes of idling before your oil change—no garage wait needed - • **Deep Clean Power:** Removes up to 85% of engine sludge for peak performance - • **Seal-Safe Formula:** Solvent-free to protect vital engine seals and parts - • **Engine Longevity Boost:** Maintains engine power and efficiency by clearing oil galleries - • **Universal Compatibility:** Effective on both gasoline and light diesel engines ## Overview Castrol Engine Shampoo is a powerful pre-oil change treatment that removes up to 85% of sludge buildup in gasoline and light diesel engines. Its solvent-free, seal-safe formula uses Castrol’s Powerful Cleaning Agent (PCA) to dissolve dirt and sludge without damaging vital engine seals. Simply add to old oil, idle for 10 minutes, then drain and replace oil and filter for a cleaner, more efficient engine. ## Description From the manufacturer Modern driving makes engines work harder which creates dirt and sludge that can clog vital engine parts. This can have an impact on engine operation if not fully removed during oil changes. Sludge can build up without being noticed due to Use of low quality oil Oil change delayed or missed Driving under tough conditions. For example; frequent short distance driving, stop-start/busy driving and driving up hills and inclines. Castrol Engine Shampoo is a pre-oil change treatment with a Powerful Cleaning Agent (PCA) that removes engine sludge* and wraps up dirt particles, helping them to drain freely and cleaning the engine ready for fresh oil. Castrol Engine Shampoo is solvent-free and therefore, it does not damage vital oil seals contains Powerful Cleaning Agent (PCA) which helps to remove sludge deposits from the metal surfaces of the engine removes up to 85% of sludge * in gasoline engines can also be used in light diesel engines You can use Castrol Engine Shampoo while the car is waiting to be serviced. There is no need to occupy the ramp prior to the oil change. Quick and Easy Operation Pour Engine Shampoo into the old oil Idle engine for 10 minutes Drain the oil. Please ensure to change the oil filter as well Pour new oil into the engine Castrol Engine Shampoo Review: Good product - I always love castrol products. Been using them for over 5 years. Being a part time mobile mechanic castrol is all we use and this product is brilliant. Unlike many others this cleaner is PVA based and hence should not harm any oil seals. Review: Actually cleaned a diesel engine with a single flush. - Surprisingly worked very well on a RAV4 2.2 diesel. Not only did it clean it out in a single change but its stayed clear for the past 300 miles so far. Its fair to say the engine is in good condition and using toyota filters etc but regardless it did do a good job on the flush and it didn't seem as thin as the usual flushing products which look and smell a lot like diesel or some other type of thin oil. ## Features - Contains MOLYBDENUM POLYSULPHIDE LONG CHAIN ALKYL DITHIOCARBAMIDE COMPLEX. May produce an allergic reaction. - Contains Molybdenum polysulfide long chain alkyl dithiocarbamate complex. May produce an allergic reaction. - Contains molybdenum polysulphide long chain alkyl dithiocarbamate complex. May produce an allergic reaction. - Safety data sheet available on request. - Modern driving creates combustion by-products that can build up in your oil. When these accumulate, they build up to form layers of sludge that can harm engine performance, especially in the latest precision engines. Castrol "Engine Shampoo" helps to maintain engine power and efficiency. By adding it to the old engine oil and running the engine for ten minutes on idle before changing the oil, sludge and dirt is then removed with the old oil when changed. - Color: Silver - Material: Plastic - Package Dimensions: 5.1 L x 21.6 H x 5.2 W (centimeters) - solvent-free and therefore, it does not damage vital oil seals - packaging may vary ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B08CRKFKG8 | | Best Sellers Rank | 7,983 in Automotive ( See Top 100 in Automotive ) 156 in Car Engine Oils | | Brand | Castrol | | Customer Reviews | 4.6 4.6 out of 5 stars (201) | | Date First Available | 10 July 2020 | | Exterior | Machined | | Item Weight | 264 g | | Item model number | 15CF7C | | Manufacturer | Castrol | | Manufacturer part number | 15CF7C | | Model | Engine Shampoo | | Product Dimensions | 5.3 x 21.5 x 5.3 cm; 264 g | | Special Features | • Parts-friendly solvent free formulation, designed specifically not to harm engine seals and other parts • This innovation – Castrol Powerful Cleaning Agent (PCA) - is so powerful it can even dissolve away sludge that has already formed in your engine. • Helps maintain engine power and efficiency by removing dirt and sludge from engine parts and keeping oil galleries clear • It’s very simple to u… | ## Images ![Castrol Engine Shampoo 300mL - Image 1](https://m.media-amazon.com/images/I/71Fqui2hmLL.jpg) ![Castrol Engine Shampoo 300mL - Image 2](https://m.media-amazon.com/images/I/81Yo84eIwJL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good product *by S***O on 21 January 2026* I always love castrol products. Been using them for over 5 years. Being a part time mobile mechanic castrol is all we use and this product is brilliant. Unlike many others this cleaner is PVA based and hence should not harm any oil seals. ### ⭐⭐⭐⭐⭐ Actually cleaned a diesel engine with a single flush. *by K***R on 3 November 2025* Surprisingly worked very well on a RAV4 2.2 diesel. Not only did it clean it out in a single change but its stayed clear for the past 300 miles so far. Its fair to say the engine is in good condition and using toyota filters etc but regardless it did do a good job on the flush and it didn't seem as thin as the usual flushing products which look and smell a lot like diesel or some other type of thin oil. ### ⭐⭐⭐⭐⭐ Check if really needed. *by I***C on 17 February 2026* I’ve given this as 5 stars but it’s actually based on what others have said. I’ve done this as since purchasing I did some research (yes should have done this beforehand) and as I use fully synthetic Castrol Edge and change the oil and filter every 6k miles there’s no need to flush or use this type of ‘shampoo’…..in fact it’s advised not too. ## Frequently Bought Together - Castrol Engine Shampoo 300mL - Castrol Gtx High Mileage 5W-30 Synthetic Blend Motor Oil, 1 Quart, Pack of 6 - Castrol EDGE High Mileage 5W-30 Advanced Full Synthetic Motor Oil, 5 Quarts --- ## 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.is/products/227031191-castrol-engine-shampoo-300ml](https://www.desertcart.is/products/227031191-castrol-engine-shampoo-300ml) --- *Product available on Desertcart Iceland* *Store origin: IS* *Last updated: 2026-06-29*