--- product_id: 16442409 title: "GTX MAGNATEC 5W-30 Full Synthetic Motor Oil, 5 Quart" brand: "castrol" price: "3583893β‚«" currency: VND in_stock: true reviews_count: 10 category: "Castrol" url: https://www.desertcart.vn/products/16442409-gtx-magnatec-5w-30-full-synthetic-motor-oil-5-quart store_origin: VN region: Vietnam --- # Instant protection from engine start-up 5W-30 SAE viscosity for all-season performance 4X smoother critical engine wear protection GTX MAGNATEC 5W-30 Full Synthetic Motor Oil, 5 Quart **Brand:** castrol **Price:** 3583893β‚« **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?** 3583893β‚« with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/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€’ **Cold Start Savior:** Minimizes lifter noise and wear during cold starts, perfect for harsh winters and stop-and-go city driving. - β€’ **Extended Oil Life:** Maintains oil integrity longer, allowing for extended oil change intervals without compromising protection. - β€’ **Instant Engine Shield:** Unique intelligent molecules cling to engine parts, reducing wear from the very first second you start your car. - β€’ **4X Smoother Engine Wear:** Proven to leave critical engine components up to 4 times smoother, extending engine life and performance. - β€’ **Trusted by Professionals:** Highly rated with 4.8 stars from over 9,000 reviews, a go-to choice for millennial managers who demand reliability and value. ## Overview Castrol GTX MAGNATEC 5W-30 Full Synthetic Motor Oil features a unique molecular formula that clings to engine parts, providing instant and lasting protection from startup wear. Tested to reduce engine wear by up to 4 times, it excels in cold starts and extends oil change intervals, making it a trusted, high-performance choice for modern vehicles. ## 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 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 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. ## 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 | #88,849 in Automotive ( See Top 100 in Automotive ) #655 in Motor Oils | | Brand | Castrol | | Brand Name | Castrol | | Compatible with Vehicle Type | Car | | Container Type | Jug | | Customer Reviews | 4.8 out of 5 stars 9,200 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 | 160.0 Fluid Ounces | | Vehicle Service Type | Car | | Viscosity Level | Medium to High | ## Product Details - **Brand:** Castrol - **Liquid Volume:** 160 Fluid Ounces - **Package Information:** Jug - **SAE J300 Viscosity Grade:** 5W-30 - **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) ![GTX MAGNATEC 5W-30 Full Synthetic Motor Oil, 5 Quart - Image 2](https://m.media-amazon.com/images/I/81EHGn1xerL.jpg) ![GTX MAGNATEC 5W-30 Full Synthetic Motor Oil, 5 Quart - Image 3](https://m.media-amazon.com/images/I/71T5toaezML.jpg) ![GTX MAGNATEC 5W-30 Full Synthetic Motor Oil, 5 Quart - Image 4](https://m.media-amazon.com/images/I/91IB3579A8L.jpg) ![GTX MAGNATEC 5W-30 Full Synthetic Motor Oil, 5 Quart - Image 5](https://m.media-amazon.com/images/I/71puAGb8-aL.jpg) ## Available Options This product comes in different **Configuration, Size, Style** options. ## Customer Reviews ### ⭐⭐⭐⭐⭐ 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 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. ### ⭐⭐⭐⭐⭐ I've tried pretty much every oil.... *by M***R on November 20, 2021* Oil today is a lot different than it used to be. It really doesn't matter what manufacturer you go with. After building engines and tearing them apart for years. From racing cars at the local drag strip and just fixing up every day drivers I've learned that all that matters is keeping your oil regularly changed and using the right weighted oil for your driving behavior. Oil does not cause problems in an engine... poor maintenance does. Going too long between oil changes, running your engine under strenuous loads the oil weight can't provide enough protection against (aka high performance engines), ignoring car maintenance like replacing engine seals when they go bad, changing bad lifters, oil pumps, etc. and driving a car with mechanical issues and then blaming it on your oil when things go wrong is mostly what I've seen people do in my car repair lifetime. Castrol,Valvoline,Mobile 1, Quaker State... whatever you choose just make sure you get what's right for your application and intended purpose and change it 3K miles or 3 months and your engine will be just fine. This particular Synthetic GTX is 5W-30 it has a very fluent viscosity and will lubricate your engines components just fine. Your motor does not care at all what brand of oil is in it just so long as that oil is able to go through all the the little cracks, holes, and crevices in your engine and lubricate the components that need to be lubricated. Just make sure you keep that oil fresh and change it out when it's time. Most people decide to start buying expensive oil when their engine is already acting funny hoping that will fix the mechanical problem they're really having and then picking on the oil when the problem still persists. You'll never in your life hear a mechanic diagnosing a certain brand of oil as the cause for mechanical engine failure... but you will hear them diagnose a lack of maintenance as the cause for it. ## 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.vn/products/16442409-gtx-magnatec-5w-30-full-synthetic-motor-oil-5-quart](https://www.desertcart.vn/products/16442409-gtx-magnatec-5w-30-full-synthetic-motor-oil-5-quart) --- *Product available on Desertcart Vietnam* *Store origin: VN* *Last updated: 2026-05-20*