--- product_id: 16487770 title: "Red Line 40603 Two-Stroke Oil Racing Synthetic - 16 Ounce (12 Pack)" brand: "red line" price: "R8405" currency: ZAR in_stock: true category: "Red Line" url: https://www.desertcart.co.za/products/16487770-red-line-40603-two-stroke-oil-racing-synthetic-16-ounce store_origin: ZA region: South Africa --- # Boosts engine power & performance Universal fit for motorcycles & ATVs Superior scuff protection & cleanliness Red Line 40603 Two-Stroke Oil Racing Synthetic - 16 Ounce (12 Pack) **Brand:** red line **Price:** R8405 **Availability:** ✅ In Stock ## Summary > 🏁 Dominate the track with Red Line’s synthetic edge! ## 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?** R8405 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.za](https://www.desertcart.co.za/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 - • **Bulk Pack Advantage:** 12 bottles of 16 oz each—ready to fuel your entire racing season. - • **Race-Ready Power Boost:** Unlock peak engine performance with every ride. - • **Universal Compatibility:** Fits motorcycles, ATVs, and marine engines seamlessly. - • **Synthetic Racing Formula:** Advanced synthetic blend designed for high-stress environments. - • **Unmatched Engine Protection:** Keeps your engine cleaner and safer under extreme conditions. ## Overview Red Line 40603 is a premium synthetic two-stroke oil designed for motorcycles, ATVs, and marine engines. Offering superior scuff protection, enhanced cleanliness, and increased power, this 12-pack of 16-ounce bottles ensures your engine performs at its best while maintaining longevity under racing conditions. ## Description desertcart.com: Red Line 40603 Two-Stroke Oil Racing Synthetic - 16 Ounce (12 Pack) : Sports & Outdoors ## 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 | #25,648 in Automotive ( See Top 100 in Automotive ) #255 in Motor Oils | | Brand Name | Red Line | | Compatible with Vehicle Type | Motorcycle, ATV | | Container Type | Bottle | | Customer Reviews | 4.8 4.8 out of 5 stars (866) | | 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 | | Number of Packs | 12 | | SAE J300 Viscosity Grade | 60 | | Size | 16 Ounce (12 Pack) | | UPC | 083522406239 | | Unit Count | 12 Count | ## 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) ## Available Options This product comes in different **Size** options. ## 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. --- ## 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.co.za/products/16487770-red-line-40603-two-stroke-oil-racing-synthetic-16-ounce](https://www.desertcart.co.za/products/16487770-red-line-40603-two-stroke-oil-racing-synthetic-16-ounce) --- *Product available on Desertcart South Africa* *Store origin: ZA* *Last updated: 2026-10-04*