--- product_id: 267526752 title: "Two-Stroke Oil Racing Synthetic - 10W-40, 16 Ounce" brand: "red line" price: "45149CFA" currency: XOF in_stock: true reviews_count: 5 category: "Red Line" url: https://www.desertcart.sn/products/267526752-two-stroke-oil-racing-synthetic-10w-40-16-ounce store_origin: SN region: Senegal --- # 3-5% dyno-proven power boost High-temp deposit resistance Versatile 50:1 to 100:1 mix ratio Two-Stroke Oil Racing Synthetic - 10W-40, 16 Ounce **Brand:** red line **Price:** 45149CFA **Availability:** ✅ In Stock ## Summary > 🏍️ Power your ride with precision and cleanliness—because every second counts on the leaderboard! ## Quick Answers - **What is this?** Two-Stroke Oil Racing Synthetic - 10W-40, 16 Ounce by red line - **How much does it cost?** 45149CFA with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sn](https://www.desertcart.sn/products/267526752-two-stroke-oil-racing-synthetic-10w-40-16-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 - • **Flexible Mixing Ratios:** Optimized for 50:1 but adaptable up to 100:1—tailor your performance to any ride. - • **Race-Ready Power Gains:** Unlock 3-5% more horsepower on every run—feel the difference on track and street. - • **Ultra-Clean Combustion:** High-temp stability keeps combustion chambers and exhaust ports spotless for peak efficiency. - • **Ester-Based Film Strength:** Superior lubrication with ester base oils ensures maximum scuff protection and engine longevity. - • **Smoke & Residue Reduction:** Low carbon residue means less plug fouling and cleaner emissions—race clean, ride proud. ## Overview Red Line Two-Stroke Oil Racing Synthetic 10W-40 is a premium ester-based lubricant engineered for two-cycle engines in motorcycles, marine, and snowmobile racing. Dyno-tested to deliver 3-5% more power, it offers exceptional high-temperature stability to prevent deposits and reduce plug fouling. Compatible with both premix and injection systems, it supports flexible mixing ratios from 50:1 to 100:1, ensuring versatile, race-grade performance and cleaner combustion for professionals and enthusiasts alike. ## Description Ultimate in two-cycle performance extreme cleanliness Popular in racing and daily applications like motorcycles marine snowmobile racing etc. Dyno proven for gains of 3-5% and more power over longer runs High-temp stability prevents deposits on combustion chambers exhaust ports upper ring and piston crown Suggested use at 50: 1 but useful up to 100: 1 depending on operating conditions Chemistry in Two-Cycle Kart Oil and Two-Stroke Race Oil are identical with different labels Contain ester base oils with the highest film strength and affinity for hot metal Increased power and excellent scuff protection Provides the lubricating qualities of castors but with exceptional cleanliness Low carbon residue dramatically reduces plug fouling and smoke Compatible with reformulated fuels Each product works in both premix or injection systems Review: 4サイクルエンジン保護用として購入 - 古いヴィンテージカーのエンジン保護用として燃料に100：1程度入れて用いています。 Review: Good product - Great oil. Im using it in a 2 stroke RC truck and it works great. ## Features - Ultimate in two-cycle performance, extreme cleanliness - Popular in racing and daily applications like motorcycles, marine, snowmobile racing, etc. - Dyno proven for gains of 3-5% and more power over longer runs - High-temp stability prevents deposits on combustion chambers, exhaust ports, upper ring and piston crown - Suggested use at 50:1, but useful up to 100:1 depending on operating conditions ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B002G2U0VE | | Automotive Fit Type | Universal Fit | | Best Sellers Rank | #26,232 in Automotive ( See Top 100 in Automotive ) #42 in Motorcycle Chemicals & Fluids #382 in Automotive Oils | | Brand | Red Line | | Brand Name | Red Line | | Compatible with Vehicle Type | Car, motorbike | | Container Type | Bottle | | Customer Reviews | 4.8 out of 5 stars 829 Reviews | | Global Trade Identification Number | 00083522406031 | | Included Components | Auto part, Automotive Accessories, Replacement and Performance Parts | | Item Type Name | Motorcycle High-Performance Synthetic Engine Lubricant - 16 oz Bottle | | Item Weight | 0.45 Kilograms | | Liquid Volume | 16 Fluid Ounces | | Liquid volume | 16 Fluid Ounces | | Manufacturer | Red Line | | Manufacturer Part Number | 40603 | | Model Number | (40603) | | Package information | Bottle | | Part Interchange Info | 40603 | | SAE J300 Viscosity Grade | 50 | | Size | 16 Ounce | | UPC | 083522406031 | | Unit Count | 1 Count | | Vehicle service type | Car, motorbike | ## Product Details - **Brand:** Red Line - **Liquid volume:** 16 Fluid Ounces - **Package information:** Bottle - **SAE J300 Viscosity Grade:** 50 - **Vehicle service type:** Car, motorbike ## Images ![Two-Stroke Oil Racing Synthetic - 10W-40, 16 Ounce - Image 1](https://m.media-amazon.com/images/I/71wF+g0esIL.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 ### ⭐⭐⭐⭐ 4サイクルエンジン保護用として購入 *by T***O on 9 December 2021* 古いヴィンテージカーのエンジン保護用として燃料に100：1程度入れて用いています。 ### ⭐⭐⭐⭐⭐ Good product *by J***S on 2 April 2026* Great oil. Im using it in a 2 stroke RC truck and it works great. ### ⭐⭐⭐⭐⭐ Good oil at a good price *by K***T on 26 February 2026* Good clean burning oil, mix at 45:1 vs 50:1 and no problems ever ## Frequently Bought Together - Red Line 40603 Two-Stroke Oil Racing Synthetic - 16 Ounce - Ratio Rite Perfect Gas - Oil Mixture - CUP ONLY! - Maxima Racing Oils 10920 Quick-2-Mix Oil/Gas Ratio Mixing Bottle - 20 oz. Capacity --- ## 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.sn/products/267526752-two-stroke-oil-racing-synthetic-10w-40-16-ounce](https://www.desertcart.sn/products/267526752-two-stroke-oil-racing-synthetic-10w-40-16-ounce) --- *Product available on Desertcart Senegal* *Store origin: SN* *Last updated: 2026-07-19*