Updated at: 05-03-2022 - By: micdot

Antifreeze is needed for your car’s engine. Coolants are now divided into four broad categories. They all have a unique combination of additives and other characteristics. G12 coolant’s equivalence is thus: Pentosin SF and Prestone’s Extended Life 5/150 are the coolant replacements for G12. You don’t have to use G12 coolant when you have these two options.

Water and ethylene glycol are the main ingredients of antifreeze sold in stores. The only thing in common is this. The G13 even has the same cooling and antifreeze performance as the G12++. G12 coolant equivalent is still a mystery to many motorists, and even those who do know little about it lack sufficient familiarity. The G12 coolant equivalent may already be familiar to certain car drivers, and they may be so familiar with it that they want to know what it is. It’s a good idea and a must to be familiar with G12 coolant. Even more of a necessity is familiarity with the G12 coolant equivalent. As a result, this paper is a must-read for anyone unfamiliar with G12 coolant or a substitute. Focus on a single type of coolant for the purposes of this article. In this section, we’ll examine the G12 and its equivalency in cooling fluid terms. Let us now begin.

What Is Equivalent To G12 Coolant?

Many motorists want to know what the G12 coolant’s equivalency is. About two (2) G12 coolant counterparts have been discovered thus far. The Pentosin SF and the Prestone Extended Life 5/150 are the two options.

Pentosin SF

The Pentosin SF antifreeze is safe for the environment. It’s designed to be used in a variety of water-cooled engine configurations. Neither amines, nitrites, nor phosphorus-containing additives are included in this product

Furthermore, it is free of silicates. The Pentosin SF protects the cooling system’s components. In addition to nonferrous metals and year-round use, it is recommended for use.

Prestone’s Extended Life 5/150

All GM vehicles should be filled with this antifreeze. An extended life formula protects the engine’s critical components for up to five years and 150 miles. It includes Prestone anti-corrosion protection, and it meets the cooling system’s corrosion criteria. To use, simply add water to the concentrated formula. It has an aluminum radiator and a concentrated mixture of superior and long-lasting inhibitors.

What Is G12 Coolant?

The G 12 coolant is either red or pink in color. No silicates are present in this product. ethylene glycol and carboxylate compound are the main ingredients. For the most part, this coolant lasts for between four and five years. This is due to the fact that an appropriate additive has been used. It also possesses specific anti-corrosion characteristics.

Rust-damaged areas are the only places where this film may be made. In engines with high speeds, antifreeze G12 is employed; the antifreeze has an operating temperature range of 90 to 110 degrees. Anti-corrosion properties are only visible when rust is present. It is possible to buy the G12 with a concentration of -78 or -80 The system’s cooling capacity must be calculated. Adding distilled water and calculating the amount of coolant in the system are also necessary. The label’s water-to-antifreeze ratio is an indicator.

What Type Of Coolant Is G12?

The G12 comes in a variety of colors, including red and pink. Carboxylate and ethylene glycol are both present in this substance. Engines with operating temperatures ranging from 90 to 110 degrees Celsius can make use of it.

It has a four- to five-year shelf life. G12 coolants come in three flavors. A G12, a G12+ (red), and a G12++ are available (color purple).

Is G40 Coolant The Same As G12?

They are either pink or purple in color. The G12 Plus and G13 can now be retired in favor of this model.

It can be used in conjunction with the Glysantin G30 without issue. G40 coolant is also identical to G12 coolant.

Can You Use G40 Coolant Instead Of G12?

The G40 is made by BASF. The G12 ++ has the same issue. Before making the switch, the system needs to be flushed.

Can You Mix G12 With Regular Antifreeze?

G12 or G13 coolant is recommended by many automakers, including Volkswagen and Audi. In part, this is due to the G1’s superior lubrication capabilities.

Phosphates, on the other hand, are absent from common coolant. To put it another way, when Prestone’s antifreeze is mixed with conventional antifreeze, it creates jelly-like depositions that promote corrosion.

What Happens When You Mix G12 With Regular Coolant?

Corrosion will occur as a result of the buildup of metallic ions from the ordinary coolant and the G12 phosphate-rich G12. Because of the mixing, the radiator hoses have been completely blown off at times.

Often Asked Questions

Some frequently asked questions about the G12 coolant are listed below

Can I Mix G12 With G13 Coolant?

G12 and G12 coolants can be mixed, yes. They’ve been thoroughly incorporated into one another. However, distilled water can be used to top off your container.

Can You Mix G12 And G12+ Coolant?

G12+ and G12+ coolant can be mixed. The G12+ is the most recent formula. It’s designed to securely blend with both G12 and G11.


To summarize, an engine’s coolant is a critical component. The coolant comes in a variety of forms. This article is mostly concerned with the G12.

Mixing it with a specialized coolant is possible. But if you’ll keep in mind not to mix it with anything, you’ll be much better off. It could harm your car.