Description
Comma Xstream G40 Antifreeze & Engine Coolant Ready to Use 5L – XSG40M5L
Premium Ready-Mixed Antifreeze for Modern Vehicle Cooling Systems
Comma Xstream G40 Ready Mixed Antifreeze & Coolant 5L (XSG40M5L) is a high-quality, ethylene glycol-based engine coolant formulated to provide long-lasting protection against freezing, overheating and corrosion.
Featuring advanced Si-OAT (Silicated Organic Acid Technology) corrosion inhibitors, this ready-to-use antifreeze is designed for modern vehicle cooling systems requiring G40-type coolant technology.
With freeze protection down to approximately –36°C and a service life of up to 5 years, Comma Xstream G40 helps maintain reliable cooling system performance in demanding driving and weather conditions.
The coolant is supplied pre-mixed, eliminating the need for dilution with water.
Key Features & Benefits
Ready to Use – pre-mixed antifreeze requiring no additional water.
Advanced Si-OAT Technology – combines silicate and organic acid corrosion inhibitors.
Freeze Protection to Approximately –36°C – helps protect the cooling system in cold weather.
Up to 5 Years of Service Life – long-lasting protection under suitable operating conditions.
Corrosion Protection – helps protect compatible cooling system metals and components.
Overheating Protection – supports efficient engine temperature management.
Ethylene Glycol-Based Formula – developed for automotive cooling systems.
G40 / G12++ Technology – suitable for selected vehicles requiring the relevant coolant specification.
Bittering Agent Included – added to discourage accidental ingestion.
5-Litre Container – convenient for cooling system servicing and maintenance.
Advanced Si-OAT Coolant Technology
Comma Xstream G40 uses Silicated Organic Acid Technology (Si-OAT), combining organic acid corrosion inhibitors with silicate protection.
This formulation is designed to protect compatible components found in modern cooling systems, including aluminium and other commonly used metals.
Its corrosion-inhibiting technology helps reduce the risk of deposits and deterioration while supporting long-term cooling system reliability.
Cooling System Protection
Protection Against Freezing
The ready-mixed formula provides freeze protection to approximately –36°C, helping prevent freezing damage during cold weather.
Protection Against Corrosion
Advanced corrosion inhibitors help protect compatible metal surfaces, radiators and other cooling system components.
Protection Against Overheating
The coolant supports effective heat transfer and stable engine operating temperatures when used in a properly functioning cooling system.
Long Service Life
Comma Xstream G40 is formulated for service intervals of up to 5 years, subject to the vehicle manufacturer's recommendations and operating conditions.
Vehicle Compatibility & Specifications
Comma Xstream G40 is intended for vehicles requiring the appropriate G40 / Si-OAT coolant technology.
The underlying BASF Glysantin® G40® technology has manufacturer approvals associated with the following applications:
| Vehicle Manufacturer | Specification / Application |
|---|---|
| Audi, Bentley, Bugatti, Lamborghini, SEAT, Škoda, Volkswagen | TL 774-G / G12++ – selected vehicles from 2005 onwards |
| Cummins | CES 14603 |
| Deutz | DQC CC-14 |
| MAN | MAN 324 Si-OAT – selected vehicles from December 2011 |
| Mercedes-Benz Cars & Smart | MB-Approval 326.5 |
| Mercedes-Benz Trucks | MB-Approval 326.6 |
| Porsche | Selected 911, Boxster, Cayman, Cayenne and Panamera models from 2010 onwards |
Important: These approvals refer to the underlying BASF Glysantin G40 technology. They should not automatically be interpreted as separate manufacturer approvals for every finished Comma product. Always verify the exact coolant requirements and current approval status for your vehicle before use.
Service Classification
The ready-mixed coolant is produced using a concentrate that conforms to:
BS 6580:2010 – engine coolant standard.
Typical Technical Specifications
| Specification | Value |
|---|---|
| Brand | Comma |
| Product Range | Xstream G40 |
| Part Number | XSG40M5L |
| Product Type | Antifreeze & Engine Coolant |
| Volume | 5 Litres |
| Formula | Ready Mixed / Ready to Use |
| Base Fluid | Ethylene Glycol |
| Coolant Technology | Si-OAT |
| Colour | Violet |
| Appearance | Clear Violet Liquid |
| Approximate Freeze Protection | –36°C |
| Density at 20°C | 1.074 g/cm³ |
| Service Life | Up to 5 Years |
| Service Classification | Concentrate conforms to BS 6580:2010 |
| Bittering Agent | Included |
| Application | Automotive Engine Cooling Systems |
| Condition | Brand New |
| Quantity | 1 × 5L Container |
Directions for Use
Allow the engine and cooling system to cool completely before opening the coolant reservoir.
Check the vehicle manufacturer's coolant specification and compatibility requirements.
Inspect the cooling system for leaks or other faults before refilling.
Drain and flush the system where required by the manufacturer's service procedure.
Pour Comma Xstream G40 directly into the cooling system without dilution.
Fill to the recommended level and bleed the system according to the vehicle manufacturer's instructions.
Check the coolant level again after the engine has cooled.
Important: Do not mix incompatible antifreeze technologies. Coolant colour alone does not establish compatibility. Always follow the vehicle manufacturer's recommendations.
Safety Information
Contains ethylene glycol, which is harmful if swallowed.
Keep away from children and animals. Although the product contains a bittering agent, it must never be considered safe for ingestion.
Avoid skin and eye contact, and dispose of used coolant responsibly in accordance with local regulations.
Why Choose Comma Xstream G40 5L?
Comma Xstream G40 Ready to Use Antifreeze & Coolant XSG40M5L combines advanced Si-OAT corrosion protection, approximately –36°C freeze protection and a long service life in a convenient 5-litre ready-mixed formula.
It is a practical choice for servicing compatible modern vehicle cooling systems requiring G40-type antifreeze.
