What is VW G12 Coolant?

To keep your car running smoothly, it is essential to do regular maintenance. It is crucial to be familiar with which coolant you should use if your vehicle needs to run smoothly. That’s why it’s important to know the differences between VW G12 coolant and other types. 

We will be covering the basic concepts of VW G12 Coolant. This guide will also explain whether you need to use the same type of coolant or another. We also explain the best coolant choice for you vehicle.

Índice de Contenido
  1. What does VW G12 coolant mean?
  2. What exactly is Engine Coolant, and how can it help you?
  3. G11 vs. G12 Vs. G13Antifreeze
    1. 1. G11
    2. 2. G12
    3. 3. G13
  4. Is Antifreeze a Mixable Product?
  5. How to choose the best coolant

What does VW G12 coolant mean?

G12, a coolant that is pink or red based on ethyleneglycol and carboxylate, can be used for cooling. It doesn’t contain silicates and has a service life lasting from four to five years. G12 coolant was used on models 1996 through 2001. The freezing point of this coolant is -50° C or -58° F with a boiling point of 118° C or 245° F. 

G12 coolant's ethylene glycol percent is approximately fifty to sixty percent. It allows the product to run as efficient as possible. The coolant also has about five percent of distilled water. Other additives include dye to improve visibility. 

The downside to G12 coolant is that it doesn’t prevent corrosion. Once the corrosion process is underway, it doesn't start to combat that. It is capable of eliminating forming corrosion once it has begun. 

What exactly is Engine Coolant, and how can it help you?

Each type of engine cooling agent is made of either ethylene glycol, propylene glycol, or a combination of both. The coolant is circulated through the engine and cooling system to heat the motor. It also ensures that the coolant doesn’t freeze during the winter.

Like motor oil, coolant can also provide some lubrication to internal components. When the consistency isn’t right or there’s not enough fluid, friction can occur. 

There are generally three kinds of antifreeze formulas available: G11 (G12), G13 and G13. Each one has its unique properties, and can be used in a wide variety of ways. 

RELATED : Is it possible to use water as an alternative to coolant? (Why You Shouldn’t)

G11 vs. G12 Vs. G13Antifreeze

1. G11

G11 coolant uses a silicate base with organic additives. G11 coolant is used for vehicles manufactured before 1996. G11 can be used on certain cars, however.

G11 coolant has a reputation for protecting surfaces and slowing down the corrosion. It is available in green and blue colors. G11's shelf life is limited to 3 years. The protective properties of the coolant begin to degrade with each use. Plus, this coolant doesn’t tolerate higher temperatures above 105 degrees Fahrenheit, making heat transfer lower. 

G11 isn’t good in a car with an aluminum radiator or block because of the lack of protection. Avoid low-end brands like Euroline or Polarnik. This is because these brands mislead about the protection provided. 

2. G12

G12 coolant is available in different colors, however most are pink and red. These formulations don’t contain silicates, making them based on ethylene glycol and carboxylate compounds. The difference with the latest formulation is that it has anti-corrosion properties but only where there's already been corrosion. 

G12 can be sold as a concentrated product, which means that you need to make sure it is mixed with the right amount of water. This ratio can be found on the label. 

There’s also G12 + antifreeze, but nothing is much different. This coolant's color is red but is better for the environment. G12 ++ exists as well and is intended to last longer. The formulation contains a better mix of carboxylated substances. 

RELATED : Antifreeze for Your Car (7 Steps).

3. G13

The new antifreeze in purple is a hybrid. With a hybrid antifreeze, there’s a similar composition but a different ratio of the organic and silicate compounds. This coolant gives you more protection. 

G13 is recommended for cars with newer models. Plus, it’s recommended to change this antifreeze every five years. 

READ MORE – Function & Difference vs OAT

Is Antifreeze a Mixable Product?

Whether you are told to use VW G12 coolant or another type, the top question always heard is – can I mix two types of antifreeze together? Although this may be possible in some instances, there are many factors to consider. You must know the specific purpose and compositions of all antifreeze types to be able to decide what cannot and can't be mixed.

The most obvious difference between coolants is the color, but that’s just about appearance. What’s most important is how the composition differs. G11 contains ethylene glycol as well an inorganic base. It can be mixed with anything that’s compatible with this base.

G13 is made up of a base of propylene glycol. It’s meant to be more environmentally safe, so it doesn’t mix as well with some others. Mixing antifreeze is better than none. It’s always wiser to stick with what should be used in your vehicle. If you do need to mix a little coolant, these are some guidelines.

  • G11 and G12 will not go together 
  • G11 can be combined with G12+/G13 depending on the situation.
  • G12  doesn’t mix with G12 +. 

Avoid mixing coolant unless your car is 100% sure. You could damage the radiator and cooling system if you go against the advice of the manufacturer. You could also damage your water pump or engine. These are both repair bills you don’t want to deal with, especially when we are discussing the price of a bottle of coolant. 

RELATED: Is it possible to mix different types of coolant? (Which Types?)

How to choose the best coolant

Whether you are using VW G12 coolant or something else, it’s always best to stick with the manufacturer’s recommendations. You can find these in the owner’s manual or speak with your local dealership service department. There’s also a chance that the coolant type is listed on the reservoir tank, where you will fill up the antifreeze.

You can also choose between pre-mixed or fully concentrated coolant. Concentrated coolant will save you money unless your in urgent need. It costs less and contains more product. You only have to add the correct amount of distilled waters. You can mix the coolant in your own way to find the right solution for you car. You might require a concentrated solution if you live in colder climates. Those living in warmer climates may need less. 

Choose a brand that is well-reviewed when you are deciding on a brand. You might pay a little more to get a better brand, but the protection of your car’s engine and cooling system is worth the additional cost. 

Also, be sure to check the shelf life when choosing coolant. If you plan to store the coolant, it’s necessary to store it properly to keep it in good condition. You should rotate coolant when it isn't being used, to ensure that the older product gets used first. Ask a professional if you have any questions about the coolant that you should use.

RELATED: 10 Best Engine Antifreeze & Coolants of 2022 – Review

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