--- product_id: 5923186 title: "Castrol GTX High Mileage 10W-40 Synthetic Blend Motor Oil, 5 Quarts" brand: "castrol" price: "$272.01" currency: USD in_stock: true reviews_count: 9 category: "Castrol" url: https://www.desertcart.us/products/5923186-castrol-gtx-high-mileage-10w-40-synthetic-blend-motor-oil store_origin: US region: United States of America --- # Improved Fuel Economy Engine Wear Protection 10W-40 Synthetic Blend Castrol GTX High Mileage 10W-40 Synthetic Blend Motor Oil, 5 Quarts **Brand:** castrol **Price:** $272.01 **Availability:** ✅ In Stock ## Summary > 🛠️ Keep your high-mileage ride running like new — because every mile counts! ## Quick Answers - **What is this?** Castrol GTX High Mileage 10W-40 Synthetic Blend Motor Oil, 5 Quarts by castrol - **How much does it cost?** $272.01 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/5923186-castrol-gtx-high-mileage-10w-40-synthetic-blend-motor-oil) ## 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 - • **High Mileage Hero:** Specifically formulated for vehicles with 75,000+ miles to maintain peak performance and reliability. - • **Trusted & Top-Ranked:** Castrol GTX is the #1 consumer high-mileage motor oil with a 4.8-star rating from thousands of drivers. - • **Sludge & Leak Fighter:** Superior dispersancy and seal conditioners reduce sludge buildup and minimize leaks for a cleaner engine. - • **Engine Longevity Booster:** Phosphorus Replacement Technology extends emission system life and protects catalytic converters. - • **Fuel Efficiency Enhancer:** Advanced additives improve fuel economy, saving you money mile after mile. ## Overview Castrol GTX High Mileage 10W-40 Synthetic Blend Motor Oil is engineered for vehicles with over 75,000 miles, featuring Phosphorus Replacement Technology to protect emission systems, superior sludge control, and advanced additives that reduce engine wear and improve fuel economy. Trusted by millions, it’s the top-rated choice for extending engine life and maintaining performance in aging cars, trucks, and SUVs. ## Description Castrol® GTX® High Mileage 10W-40 is the #1 consumer high-mileage brand, specially formulated for vehicles with over 75,000 miles. It's a synthetic blend motor oil that helps extend engine life providing Superior Protection in 7 Critical Areas including corrosion prevention, sludge control, timing and friction wear. It also contains a proprietary additive to protect the emisssion system. Our Phosphorus Replacement Technology reduces harmful phosphorus to protect the catalytic converter and help extend the life of your high mileage vehicle. Review: Excellent Option - My Pontiac Grand Prix has 220,000 miles and I’ve been using this oil for years. She continues to run great! If I could only make all the rust dissapear… haha! Review: Price, convenience of delivery. - Good price. Delivered to my door, no heavy lifting at the store. ## Features - Phosphorus Replacement Technology helps extend emission system life - Superior dispersancy that fights sludge build up - Exceptional oil burn-off protection exceeding industry standards* | Seal conditioners to help reduce leaks - Advanced additives that help prevent engine wear | Improved Fuel Economy** ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B00IPS3H1I | | Best Sellers Rank | #1,705 in Automotive ( See Top 100 in Automotive ) #37 in Motor Oils | | Brand Name | Castrol | | Compatible with Vehicle Type | For use in vehicles with over 75,000 miles, Passenger cars, trucks, and SUVs | | Container Type | Bottle | | Customer Reviews | 4.8 4.8 out of 5 stars (3,789) | | Global Trade Identification Number | 00079191231111 | | Included Components | Motor Oil | | Item Type Name | Motor Oil | | Item Weight | 0.01 Ounces | | Liquid Volume | 160 Fluid Ounces | | Manufacturer | Castrol | | Manufacturer Part Number | 03111C | | Manufacturer Warranty Description | 12 Months | | UPC | 079191231111 | | Unit Count | 160.0 Fluid Ounces | | Viscosity | 10W-40 SAE Grade | ## Product Details - **Brand:** Castrol - **Liquid Volume:** 160 Fluid Ounces - **Package Information:** Bottle - **Vehicle Service Type:** For use in vehicles with over 75,000 miles, Passenger cars, trucks, and SUVs - **Viscosity:** 10W-40 SAE Grade ## Images ![Castrol GTX High Mileage 10W-40 Synthetic Blend Motor Oil, 5 Quarts - Image 1](https://m.media-amazon.com/images/I/61cMjqDB6aL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: I can change the convencional motor oil for sinteric motor oil in many next service** A: Sure, should pose Zero problems, just use the manufacturer recommended grade of oil. **Q: whats the percentage of synthetic oil in this oil?** A: We never divulge amounts of components in our products but we would not call a product a synthetic blend without it having a performance benefit as compared to our conventional product. **Q: Generally i use highmileage 5w-30 for my nissan sentra 2007 which has 200k miles, shall i use highmileage 10w-40 now?** A: Look what Nissan says on weight to use and stick with it. It is designed to use the weight as for the clearances on you motor. Once you used the high mileage continue to use it. The high mileage has stuff in the oil to expand some of the seal and gaskets in your motor. Now if you go back the seals may shrink back and start to leak. Go to youtube and look for the video on different filters and oils. ie fram. I had a someone tell me to get the fram off my 92 ford 5.0 mustang and watching the video on filter I could see why. Oil is important but especially the filter. **Q: Can you use it in a 212 predator** A: Contact Predator to see if that oil is compatible with your boat. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Excellent Option *by R***R on December 3, 2025* My Pontiac Grand Prix has 220,000 miles and I’ve been using this oil for years. She continues to run great! If I could only make all the rust dissapear… haha! ### ⭐⭐⭐⭐⭐ Price, convenience of delivery. *by M***Y on March 24, 2026* Good price. Delivered to my door, no heavy lifting at the store. ### ⭐⭐⭐⭐⭐ Overall pleased. *by T***F on October 30, 2025* Good price. Delivery quick. ## Frequently Bought Together - Castrol GTX High Mileage 10W-40 Synthetic Blend Motor Oil, 5 Quarts - FRAM Extra Guard PH2, 10K Mile Change Automotive Replacement Interval Spin-On Engine Oil Filter for Select Vehicle Models --- ## 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.us/products/5923186-castrol-gtx-high-mileage-10w-40-synthetic-blend-motor-oil](https://www.desertcart.us/products/5923186-castrol-gtx-high-mileage-10w-40-synthetic-blend-motor-oil) --- *Product available on Desertcart United States of America* *Store origin: US* *Last updated: 2026-07-09*