---
product_id: 16487770
title: "Red Line 40603 Two-Stroke Oil Racing Synthetic - 16 Ounce (12 Pack)"
brand: "red line"
price: "9909438₫"
currency: VND
in_stock: true
url: https://www.desertcart.vn/products/16487770-red-line-40603-two-stroke-oil-racing-synthetic-16-ounce
store_origin: VN
region: Vietnam
---

# Boosts engine power Marine & motorcycle safe Superior scuff protection Red Line 40603 Two-Stroke Oil Racing Synthetic - 16 Ounce (12 Pack)

**Brand:** red line
**Price:** 9909438₫
**Availability:** ✅ In Stock

## Summary

> ⚡ Race ahead 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?** 9909438₫ with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.vn](https://www.desertcart.vn/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

- • **Power Surge Formula:** Unlock peak engine performance with every drop
- • **Synthetic Precision:** Advanced synthetic blend for cleaner, smoother operation
- • **Versatile Racing Ready:** Perfectly engineered for motorcycles and marine engines
- • **Ultimate Engine Defense:** Experience unmatched scuff and wear protection
- • **Trusted American Craftsmanship:** Proudly made in the USA for consistent quality

## Overview

Red Line 40603 is a premium synthetic two-stroke oil designed to maximize power and protect high-performance motorcycle and marine engines. This 16-ounce oil, sold in convenient 12-packs, delivers superior scuff protection and engine cleanliness, ensuring your ride stays race-ready and reliable. Made in the USA, it meets manufacturer specs for optimal performance.

## Description

40603 Two-Stroke Oil Racing Synthetic - 16 Ounce (12 Pack)

## 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 |
|---------------|-------|
| Manufacturer | Red Line |
| Brand | Red Line |
| Item Weight | 10 pounds |
| Product Dimensions | 11.1 x 8.5 x 10.3 inches |
| Country of Origin | USA |
| Item model number | 40603 CASE/12 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 40603 |

## Product Details

- **Brand:** Red Line
- **Vehicle Service Type:** Motorcycle
- **UPC:** 083522406239
- **Global Trade Identification Number:** 00083522406239
- **Manufacturer:** Red Line

## 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.

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**Shop now:** [https://www.desertcart.vn/products/16487770-red-line-40603-two-stroke-oil-racing-synthetic-16-ounce](https://www.desertcart.vn/products/16487770-red-line-40603-two-stroke-oil-racing-synthetic-16-ounce)

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*Product available on Desertcart Vietnam*
*Store origin: VN*
*Last updated: 2026-03-24*