--- product_id: 16487770 title: "Red Line 40603 Two-Stroke Oil Racing Synthetic - 16 Ounce (12 Pack)" brand: "red line" price: "1283.63 DT" currency: TND in_stock: true reviews_count: 13 category: "Red Line" url: https://www.desertcart.tn/products/16487770-red-line-40603-two-stroke-oil-racing-synthetic-16-ounce store_origin: TN region: Tunisia --- # Superior scuff protection under extreme conditions Synthetic formula for peak engine power Optimized for motorcycles & marine engines Red Line 40603 Two-Stroke Oil Racing Synthetic - 16 Ounce (12 Pack) **Brand:** red line **Price:** 1283.63 DT **Availability:** ✅ In Stock ## Summary > 🏁 Race ahead with Red Line – where power meets protection! ## Quick Answers - **What is this?** Red Line 40603 Two-Stroke Oil Racing Synthetic - 16 Ounce (12 Pack) by red line - **How much does it cost?** 1283.63 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/16487770-red-line-40603-two-stroke-oil-racing-synthetic-16-ounce) ## Best For - red line enthusiasts ## Why This Product - Trusted red line brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Proven Reliability:** Trusted by riders for over a decade with glowing 4.8-star reviews and zero engine issues. - • **Optimized Mixing Ratio:** Efficient 45:1 mix ratio ensures cleaner burns and smoother rides every time. - • **Versatile Universal Fit:** Perfectly compatible with motorcycles, ATVs, and marine engines—one oil to rule them all. - • **Race-Ready Synthetic Power:** Unlock max horsepower with advanced synthetic oil designed for high-performance two-stroke engines. - • **Unmatched Engine Protection:** Keep your pistons pristine and extend engine life with superior scuff and wear resistance. ## Overview Red Line 40603 is a premium synthetic two-stroke oil designed to boost power and provide exceptional scuff protection for motorcycles, ATVs, and marine engines. Available in a convenient 12-pack of 16-ounce bottles, it supports a 45:1 mix ratio for cleaner combustion and long-lasting engine health, backed by over a decade of trusted performance and high customer satisfaction. ## Description Buy Red Line 40603 Two-Stroke Oil Racing Synthetic - 16 Ounce (12 Pack): Sinkers & Weights - desertcart.com ✓ FREE DELIVERY possible on eligible purchases Review: Good oil at a good price - Good clean burning oil, mix at 45:1 vs 50:1 and no problems ever Review: Great product used for 12 years - Have used this product for over 12 years never had engine issues pistons have All looked like brand new after years of service ## Features - For best performance, follow the manufacturer's recommendations in your vehicle owner’s manual - Provides excellent scuff protection and cleanliness - Increas in power - Provides unequalled protection in motorcycles and marine engines ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B000T9TMIS | | Automotive Fit Type | Universal Fit | | Best Sellers Rank | #27,837 in Automotive ( See Top 100 in Automotive ) #298 in Motor Oils | | Brand | Red Line | | Brand Name | Red Line | | Compatible with Vehicle Type | Motorcycle, ATV | | Container Type | Bottle | | Customer Reviews | 4.8 out of 5 stars 859 Reviews | | Global Trade Identification Number | 00083522406239 | | Item Weight | 10 Pounds | | Liquid Volume | 16 Fluid Ounces | | Manufacturer | Red Line | | Manufacturer Part Number | 40603 | | Model Number | 40603 CASE/12 | | Package Information | Bottle | | SAE J300 Viscosity Grade | 60 | | Size | 16 Ounce (12 Pack) | | UPC | 083522406239 | | Unit Count | 12.0 Count | | Vehicle Service Type | Motorcycle, ATV | ## Product Details - **Brand:** Red Line - **Liquid Volume:** 16 Fluid Ounces - **Package Information:** Bottle - **SAE J300 Viscosity Grade:** 60 - **Vehicle Service Type:** Motorcycle, ATV ## Images ![Red Line 40603 Two-Stroke Oil Racing Synthetic - 16 Ounce (12 Pack) - Image 1](https://m.media-amazon.com/images/I/71wF+g0esIL.jpg) ![Red Line 40603 Two-Stroke Oil Racing Synthetic - 16 Ounce (12 Pack) - Image 2](https://m.media-amazon.com/images/I/61Hcy6-iTML.jpg) ![Red Line 40603 Two-Stroke Oil Racing Synthetic - 16 Ounce (12 Pack) - Image 3](https://m.media-amazon.com/images/I/616Xgiq35CL.jpg) ![Red Line 40603 Two-Stroke Oil Racing Synthetic - 16 Ounce (12 Pack) - Image 4](https://m.media-amazon.com/images/I/81IG1Pf80EL.jpg) ![Red Line 40603 Two-Stroke Oil Racing Synthetic - 16 Ounce (12 Pack) - Image 5](https://m.media-amazon.com/images/I/811b6jtVFWL.jpg) ## Questions & Answers **Q: Can it be mixed with other 2 strike oil ?** A: i would not mix oils because each oil is a different mixture as well as having competing additives etc. They could cause engine wear or buildup or malfunction over time. Whenever I change brands I go through several cycles of a cleaning product then switch to a different oil. This strips the old and rebuilds the new. **Q: Is this compatable with alcohol?** A: YES, ester based, will not separate like non ester petroleum or synthetic 2 stroke oils in Ethanol.Very good with E85 fuel in a 2 stroke 66cc "china girl" motorized bike engine.Little or no smell compared to gas & typical 2 stroke mix.Jet richer by 30% from #70 to 64 if you get dieseling, (Dieseling is bad too lean, too hot) and replace fuel line with automotive grade and carb bowl o-ring with Nitrile (Buna-N) or Viton® (FKM) elastomer O-Rings or gasket and RTV instead of stock o-ring. E85 will lower mileage by some but act as higher octane too allowing for better high compression performance and a cleaner engine too.Off the Redline website: Contain ester base oils with the highest film strength and affinity for hot metalIncreased power and excellent scuff protectionProvides the lubricating qualities of castors, but with exceptional cleanlinessLow carbon residue dramatically reduces plug fouling and smokeCompatible with reformulated fuelsEach product works in both premix or injection systems **Q: Does this 2-stroke oil work well with ethanol fuel? 2-stroke racing motorcycle engines?** A: I've used it with racing gas I've purchased at the track I run this through my racing Go kart 2-Stroke engines (105 octane) I believe it will mix well in ethanol **Q: Well it work with other 2 storke oils that are in the bike?** A: more than likely, yes... however, to be 100% sure.. drain a little out of tank.. mix some fresh redline and mix together and see . watch for settling after some mild agitation. ## Customer Reviews ### ⭐⭐⭐⭐⭐ Good oil at a good price *by K***T on February 26, 2026* Good clean burning oil, mix at 45:1 vs 50:1 and no problems ever ### ⭐⭐⭐⭐⭐ Great product used for 12 years *by K***N on March 9, 2026* Have used this product for over 12 years never had engine issues pistons have All looked like brand new after years of service ### ⭐⭐⭐⭐⭐ Great for my giant scale rc planes *by D***D on April 14, 2026* Quick to ship so I can keep my giant scale rc planes running and flying --- ## 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.tn/products/16487770-red-line-40603-two-stroke-oil-racing-synthetic-16-ounce](https://www.desertcart.tn/products/16487770-red-line-40603-two-stroke-oil-racing-synthetic-16-ounce) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-15*