G30 is a long-life coolant from the Glysantin family, based on Organic Acid Technology (OAT). It is phosphate-free and silicate-free, and it is typically ethylene glycol–based. It is commonly specified for European vehicles, including some BMW models that require a G30 formulation.
In practical terms, G30 is a modern, OEM-oriented coolant designed to protect contemporary cooling systems from corrosion and overheating over extended service intervals. It should be used in vehicles that specify G30 or Glysantin G30, and it should not be mixed with non-OAT or conventional IAT coolants unless the system is properly flushed.
Key characteristics of G30
The core features of G30 can be summarized as follows:
- Ethylene glycol–based coolant formulation
- Organic Acid Technology (OAT) corrosion inhibitors
- Phosphate-free and silicate-free formulation
- Designed for long-life service intervals (typically up to several years or high-mileage use, depending on vehicle and climate)
- Usage is common in European OEMs that specify G30 or Glysantin G30
In summary, these characteristics identify G30 as a modern, long-life coolant suited for engines that require an OAT, phosphate- and silicate-free solution.
Usage guidelines and compatibility
To ensure proper performance and system protection, follow these guidelines when using G30:
- Verify that your vehicle requires G30 or Glysantin G30 per the owner's manual or OEM specifications
- Avoid mixing G30 with traditional silicate-based or phosphate-based coolants unless you completely flush and refill the system
- Use the correct dilution and ratio as specified (some vehicles require 50:50 with distilled water; others may use concentrated form with a different dilution)
- When replacing, ensure the product is indeed Glysantin G30 or BMW-approved equivalent
- Store and handle the coolant according to the label recommendations to preserve its properties
These practices help maintain corrosion protection, heat transfer performance, and the longevity of the cooling system.
Summary
G30 refers to Glysantin G30, a modern, long-life coolant based on Organic Acid Technology (OAT) that is phosphate-free and silicate-free. It is typically ethylene glycol–based and used in European cars that specify this formulation, including certain BMW models. Always confirm compatibility with your vehicle's manual, avoid mixing with non-OAT coolants, and follow correct dilution and replacement guidelines to ensure optimal protection and performance.
What color is G30 coolant?
Red
Additional information
| Brand | Comma |
|---|---|
| Type | Antifreeze |
| Size | 1L |
| Colour | Red |
Is Zerex G30 oat or hoat?
Zerex G30 Antifreeze/Coolant is proven to maximize engine life in Chrysler, European Ford, Fiat, GM, Jaguar, Jeep, Land Rover and VW vehicles. Its premium carboxylate formulation is specially formulated with state-of-the-art Organic Acid Technology (OAT).
What does G30 mean in coolant?
GLYSANTIN ® G30 ® is a silicate-free premium coolant using organic acids (OAT) for triple protection against corrosion, frost, and overheating. It offers long-lasting performance and is suitable for modern engines and extended service intervals. Find Suppliers. Color: Pink. Volkswagen Code: G12, G12+
What is equivalent to G30 coolant?
Therefore, G12+ (equivalent to G30) was developed, which is silicate-free but miscible with the others.


