---
product_id: 267526752
title: "Red Line Two-Stroke Oil Racing Synthetic - 10W-40, 16 Ounce"
brand: "red line"
price: "€ 102.00"
currency: EUR
in_stock: true
url: https://www.desertcart.fi/products/267526752-red-line-two-stroke-oil-racing-synthetic-10w-40-16
store_origin: FI
region: Finland
---

# Flexible 50:1 to 100:1 mix ratio 3-5% power boost High-temp deposit resistance Red Line Two-Stroke Oil Racing Synthetic - 10W-40, 16 Ounce

**Brand:** red line
**Price:** € 102.00
**Availability:** ✅ In Stock

## Summary

> 🏁 Power your ride with precision and clean speed!

## Quick Answers

- **What is this?** Red Line Two-Stroke Oil Racing Synthetic - 10W-40, 16 Ounce by red line
- **How much does it cost?** € 102.00 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fi](https://www.desertcart.fi/products/267526752-red-line-two-stroke-oil-racing-synthetic-10w-40-16)

## 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

- • **Race-Proven Power Gains:** Dyno-tested to deliver 3-5% more horsepower over extended runs, putting you ahead on every lap.
- • **Versatile Mixing Ratios:** Optimized for 50:1 but adaptable up to 100:1, perfect for diverse riding conditions and fuel setups.
- • **Synthetic Racing Formula:** Premium 10W-40 synthetic oil engineered for extreme cleanliness and superior two-stroke performance.
- • **Unmatched Thermal Stability:** Keeps combustion chambers and exhaust ports spotless, ensuring peak engine efficiency and longevity.
- • **Trusted by Pros & Enthusiasts:** The go-to choice for motorcycles, marine, and snowmobile racers who demand consistent, high-octane results.

## Overview

Red Line Two-Stroke Racing Synthetic Oil 10W-40 (16 oz) is a high-performance synthetic lubricant designed for two-cycle engines. It delivers dyno-proven 3-5% power gains, exceptional thermal stability to prevent deposits, and supports flexible fuel-to-oil ratios from 50:1 up to 100:1, making it ideal for racing and daily use in motorcycles, marine, and snowmobiles.

## Description

Two-Stroke Oil Racing Synthetic - 10W-40, 16 Ounce

## 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 |
|---------------|-------|
| Manufacturer | Red Line |
| Brand | Red Line |
| Model | Racing 2T Oil - 16oz. |
| Product Dimensions | 29.21 x 27.94 x 20.32 cm; 450 g |
| Item model number | (40603) |
| Exterior | Machined |
| Manufacturer Part Number | 40603 |
| OEM Part Number | 40603 |
| Item Weight | 450 g |
| Viscosity | 2T |

## Product Details

- **Viscosity:** 2T
- **Brand:** Red Line
- **Liquid volume:** 16
- **Package information:** Bottle
- **Vehicle service type:** Car, motorbike

## Images

![Red Line Two-Stroke Oil Racing Synthetic - 10W-40, 16 Ounce - 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.

## 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

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**Shop now:** [https://www.desertcart.fi/products/267526752-red-line-two-stroke-oil-racing-synthetic-10w-40-16](https://www.desertcart.fi/products/267526752-red-line-two-stroke-oil-racing-synthetic-10w-40-16)

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*Product available on Desertcart Finland*
*Store origin: FI*
*Last updated: 2026-01-28*