--- product_id: 16442409 title: "GTX MAGNATEC 5W-30 Full Synthetic Motor Oil, 5 Quart" brand: "castrol" price: "612.53 DT" currency: TND in_stock: true reviews_count: 10 category: "Castrol" url: https://www.desertcart.tn/products/16442409-gtx-magnatec-5w-30-full-synthetic-motor-oil-5-quart store_origin: TN region: Tunisia --- # Instant engine protection Superior cold start performance 4X smoother critical parts GTX MAGNATEC 5W-30 Full Synthetic Motor Oil, 5 Quart **Brand:** castrol **Price:** 612.53 DT **Availability:** βœ… In Stock ## Summary > πŸ›’οΈ Protect your engine like a pro β€” because every start counts! ## Quick Answers - **What is this?** GTX MAGNATEC 5W-30 Full Synthetic Motor Oil, 5 Quart by castrol - **How much does it cost?** 612.53 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/16442409-gtx-magnatec-5w-30-full-synthetic-motor-oil-5-quart) ## Best For - castrol enthusiasts ## Why This Product - Trusted castrol brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - β€’ **Universal Fit for Cars:** Compatible with a wide range of vehicles, making it the go-to synthetic oil for your daily driver or high-mileage ride. - β€’ **Optimized for Cold Starts:** Keeps lifter noise down and engine quiet during cold weather, perfect for millennial professionals juggling busy mornings. - β€’ **4X Smoother Engine Wear Defense:** Proven in industry-standard Sequence IVA wear tests to dramatically reduce engine wear and extend engine life. - β€’ **Instant Protection from Start-Up:** Unique intelligent molecules cling to engine parts the moment you turn the key, reducing wear when your engine is most vulnerable. - β€’ **Longer Oil Life & Cost Efficiency:** Maintains oil integrity over extended intervals, saving you money without compromising performance. ## Overview Castrol GTX MAGNATEC 5W-30 Full Synthetic Motor Oil features intelligent molecules that cling to critical engine parts, providing instant protection from startup and reducing engine wear up to 4X. Tested in industry-standard wear tests, it excels in cold start performance and extends oil life, making it a cost-effective, universal-fit solution trusted by thousands of drivers. ## Description ONLY Castrol GTX MAGNATEC IS UNIQUELY FORMULATED TO PROVIDE INSTANT PROTECTION FROM THE MOMENT YOU START. Did you know testing confirms that up to 75% of engine wear occurs during the first 20 minutes of warm up?When your engine stops, oil drains off critical engine parts, but the intelligent molecules in Castrol GTX MAGNATEC don’t – they form an extra layer of protection during warm up, when your engine needs it most, dramatically reducing engine wear and keeping critical parts up to 4X smoother.As tested in the industry Sequence IVA wear test. Review: Great oil for the price. Helps ALOT on cold starts - I am the type of guy who normally uses the top of the line oil like royal purple (40$-50$ for 5 Quarts). I recently started using this oil in my 04 Silverado with 210,000 miles. I've never had any engine issues whatsoever on my L59 5.3. I wanted to try this oil because first off, I was tired of spending well over $60 for 6 quarts of royal purple and a filter and I wanted to see if the "Magnatec" was just a gimmick or a thing these days (most products are with engine products). I have to say the oil definitely keeps the top end of the motor quiet with lifter noise on startup, especially in the winter which is what I wanted. Will continue to use this as the oil seems to hang around in the critical parts when the motor isn't running. With that being said, I have never had to tear down the motor and dont plan on it, so it is difficult to truly tell. Update as of 10/5/18: Getting ready to drain this out of my motor as it is time for an oil change. Dipstick and oil coloration still looks new even at 215,000 miles. This oil still helps on those cold starts where I used to get some lifter noise. Have not heard it since using this. Review: Great oil great price. - I'm doing a filter every 4-5k and oil every 8 or every other filter and this oil still passes my experience testing. I look at the color and feel it between my fingers . I have worked on European vehicles for over 20 years and was looking for a good high mileage maintenance oil that I could go above the typical 5-7k range . I wanted to see if I could double the intervals and so far so good I switched from motul to this in my daily family cars (nothing beats motul imo in tourtured sports/performance cars) I am saving money and getting a longer interval with no losses that I can detect in my not so sciency testing . So much so that I would like project farm to test this oil. The price I pay is slightly above desertcart basics Wich ive read is a fantastic oil but this is working so I didn't want to gamble ## Features - ATTENTION: Castrol GTX Magnatec will be transitioning to a brand NEW Castrol product, GTX Full Synthetic, on January 1st 2022. - Dramatically reduce engine wear - Leave critical engine parts 4X smoother. As tested in the industry Sequence IVA wear test - Superior wear protection on critical engine parts - For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual. ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00TS9ZYWI | | Automotive Fit Type | Universal Fit | | Best Sellers Rank | #347,136 in Automotive ( See Top 100 in Automotive ) #1,385 in Motor Oils | | Brand | Castrol | | Brand Name | Castrol | | Compatible with Vehicle Type | Car | | Container Type | Jug | | Customer Reviews | 4.8 out of 5 stars 9,185 Reviews | | Global Trade Identification Number | 00079191230572 | | Included Components | Motor Oil | | Item Type Name | Motor Oil | | Liquid Volume | 160 fluid ounces | | Manufacturer | Castrol | | Manufacturer Part Number | 03057C | | Manufacturer Warranty Description | 12 Months | | Model Number | 3057 | | Package Information | Jug | | SAE J300 Viscosity Grade | 5W-30 | | Size | 5 Quart | | UPC | 079191230572 | | Unit Count | 160 Fluid Ounces | | Vehicle Service Type | Car | | Viscosity Level | Medium to High | ## Product Details - **Brand:** Castrol - **Liquid Volume:** 160 Fluid Ounces - **Package Information:** Jug - **UPC:** 079191230572 - **Vehicle Service Type:** Car ## Images ![GTX MAGNATEC 5W-30 Full Synthetic Motor Oil, 5 Quart - Image 1](https://m.media-amazon.com/images/I/71Y0CAowaaL.jpg) ## Available Options This product comes in different **Configuration, Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Great oil for the price. Helps ALOT on cold starts *by J***7 on July 6, 2018* I am the type of guy who normally uses the top of the line oil like royal purple (40$-50$ for 5 Quarts). I recently started using this oil in my 04 Silverado with 210,000 miles. I've never had any engine issues whatsoever on my L59 5.3. I wanted to try this oil because first off, I was tired of spending well over $60 for 6 quarts of royal purple and a filter and I wanted to see if the "Magnatec" was just a gimmick or a thing these days (most products are with engine products). I have to say the oil definitely keeps the top end of the motor quiet with lifter noise on startup, especially in the winter which is what I wanted. Will continue to use this as the oil seems to hang around in the critical parts when the motor isn't running. With that being said, I have never had to tear down the motor and dont plan on it, so it is difficult to truly tell. Update as of 10/5/18: Getting ready to drain this out of my motor as it is time for an oil change. Dipstick and oil coloration still looks new even at 215,000 miles. This oil still helps on those cold starts where I used to get some lifter noise. Have not heard it since using this. ### ⭐⭐⭐⭐⭐ Great oil great price. *by R***O on November 18, 2019* I'm doing a filter every 4-5k and oil every 8 or every other filter and this oil still passes my experience testing. I look at the color and feel it between my fingers . I have worked on European vehicles for over 20 years and was looking for a good high mileage maintenance oil that I could go above the typical 5-7k range . I wanted to see if I could double the intervals and so far so good I switched from motul to this in my daily family cars (nothing beats motul imo in tourtured sports/performance cars) I am saving money and getting a longer interval with no losses that I can detect in my not so sciency testing . So much so that I would like project farm to test this oil. The price I pay is slightly above Amazon basics Wich ive read is a fantastic oil but this is working so I didn't want to gamble ### ⭐⭐⭐⭐⭐ Great price for 5 quarts of oil. Will def repeat buy. *by O***N on January 26, 2020* I baby my car, so I change oil every 2-3k miles (full synthetic). If you get the subscription it's around $15 per 5 quarts. Pretty damn good deal. Might just buy 5 jugs and call it a day for a while. Also my car takes 6 quarts so $30 for 10 quarts and by 4 more jugs later on. I'm happy. I bought the UltraClean version too. No issues. Not the best brand or type I'm sure, but probably better than any Valvoline. I definitely would not try pushing this oil any more than 5k per change, but like I said I baby my cars. This is not Mobil or Royal Purple, nor Amsoil. (Those claim to last 10k miles) For someone who changes oil frequently, or less than 5k miles, I'm sure this stuff is more than fine. I'm glad I found this type of oil and price on Amazon. ## Frequently Bought Together - Castrol GTX MAGNATEC 5W-30 Full Synthetic Motor Oil, 5 Quart - FRAM Ultra Synthetic Automotive Replacement Oil Filter, Designed for Synthetic Oil Changes Lasting up to 20k Miles, XG6607 with SureGrip (Pack of 1) - FRAM Ultra Synthetic Automotive Replacement Oil Filter, Designed for Synthetic Oil Changes Lasting up to 20k Miles, XG7317 with SureGrip (Pack of 1) --- ## Why Shop on Desertcart? - πŸ›’ **Trusted by 1.3+ Million Shoppers** β€” Serving international shoppers since 2016 - 🌍 **Shop Globally** β€” Access 737+ million products across 21 categories - πŸ’° **No Hidden Fees** β€” All customs, duties, and taxes included in the price - πŸ”„ **15-Day Free Returns** β€” Hassle-free returns (30 days for PRO members) - πŸ”’ **Secure Payments** β€” Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** β€” Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/16442409-gtx-magnatec-5w-30-full-synthetic-motor-oil-5-quart](https://www.desertcart.tn/products/16442409-gtx-magnatec-5w-30-full-synthetic-motor-oil-5-quart) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-26*