VW Volkswagen Original G13 Coolant Audi (Succesor Of G12++)

Product Information

As critical as those different formulas are, they aren't regularly referred to by them. Instead, the largely accepted naming scheme comes from BASF. As one of the largest chemical producers in the world, BASF's Glysantin line of engine coolants is largely used as a general differentiator between coolant types. Their naming scheme is the originator of the G05, G40, and G48 designation, among others. Below, you'll find those Glysantin product names attached to each respective manufacturer's coolant specifications for ease of understanding. Engine Coolant Types

Electrolysis is a fun by-product of not changing coolant on time, and it has some very negative impacts on all things aluminum. As you can see in the picture below, electrical current traveling through the coolant seeking a path of least resistance, found its way out by creating new passages. Not a good thing long-term for your engine and all-aluminum parts in that system. Another important aspect of G40 coolant is that it is designed to be long-lasting, with a lifespan of up to five years or 150,000 miles, whichever comes first. This can help minimize the frequency of your car’s maintenance needs and provide peace of mind for drivers. Differences Between G40 and G13 Coolants: Comparison Table Spec/Feature

Technically, you can mix G40 coolant with G13 coolant in an emergency situation. However, it is not recommended to do so for several reasons. BMW is pretty simple when it comes to its coolants. For what seems like forever, BMW has used either an IAT or HOAT coolant formula for all of their vehicles. Up until recently, a blue G48-spec coolant was the only type required. However, beginning a few years ago, BMW switched to a Si-OAT formula called HT12. For whatever reason, this newest formula doesn't follow BASF's Glysantin specification naming scheme, but that might just make it easier to remember and differentiate from other formulas. G48 Coolant

Antifreeze is the hidden hero of our car’s engines. If you don’t know how antifreeze works, it’s pretty simple. Antifreeze is added to the water in your engine’s cooling system that lowers its freezing point (and raises its boiling point too). It’s why the liquid in your radiator doesn’t freeze when everything else seems to be! You can choose a concentrated coolant that needs to be mixed with water or a ready-mixed one that can be used immediately. About our Antifreeze and Engine Coolant One of the significant differences between G13 and G40 coolants is their vehicle compatibility. G13 coolant is recommended for use in Volkswagen, Audi, and Porsche vehicles, whereas G40 is recommended for use in Mercedes-Benz and BMW vehicles. Lifespan OATs, HOATs, and Si-OATs, am I right? I know that sounds confusing, but you don't need to know the chemical makeup of every fluid in your car; that's an engineer's job. What you do need to know is which coolants can be used together. Carrying around spare fluids is a nice thought, but not everyone has the space for them, so knowing which coolant types that can top off your system in a pinch can save your cooling system. One of the key features of G40 coolant is that it is free of silicates. Silicates are chemicals that are commonly found in other types of engine coolant, but can potentially cause corrosion or other issues in certain types of engines. Coolant as we know it today, also called antifreeze, is a kind of “super water.” Within it are many chemical compounds, the most important being Glycol. When added to water, Glycol raises the boiling point and lowers the freezing point, stabilizing it for use in almost every application while also containing the lubricants that help the water pump and thermostat function effortlessly. The rest of the chemicals are corrosion inhibitors and dyes (orange, green, red, or blue). The corrosion inhibitors are critical to the type of material that the engine is made from and are categorized into four different types. Engine Coolant Corrosion Inhibitors:G05andG48 are compatible with each other, regardless of color. However, we advise a switch to G48 after performing a full cooling system drain, flush, and re-fill, due to current availability. G13 contains some silicate additives for that additional healing aluminium protection. This is contrary to some earlier specifications that use OAT-technology (Organic Acid Technology). Silicate additives make G13 ideal for long-term use in all modern radiators, especially those constructed from aluminium, cast iron and magnesium alloys. If you are unsure about which type of coolant to use, it is always best to consult your owner’s manual or a qualified mechanic for advice. By using the correct coolant for your vehicle, you can ensure that your engine is protected and running smoothly. Negative Effects: While technically compatible with the older Yellow coolant, the early formula is very old, and any car using it should be drained, flushed, and replaced with the modern Q1030004 fluid

Due to G12 no longer being made, if the system needs a top-off, it is not recommended to mix antifreeze types. A drain, flush, and re-fill are suggested with the latest fluid. All other coolant forms are still in production and can be found with ease. With that said, updating to the most modern coolant isn't a bad idea. It's the best blend of corrosion-inhibiting organic additives and lubricating silicates. Negative Effects: Mixing with an older coolant will result in accelerated internal wear on cooling system components. Both G13 and G40 coolants have a lifespan of up to five years or 150,000 miles, whichever comes first. However, it is essential to note that factors such as driving conditions, climate, and usage patterns can affect the coolant’s lifespan. ChemicalsVolkswagen/Audi Group is a bit of an outlier compared to other manufacturers in that they've consistently updated their cooling systems, engine materials, and engine coolants over the last three decades. That's resulted in five different potential coolants for your car available in three different colors and a few confusing names. Struggle no more when choosing your next coolant, as this section should be all you need. G11 Coolant Once you have chosen the correct coolant, you can fill the cooling system with the new coolant. You should follow the manufacturer’s instructions for the correct ratio of coolant to water, which is usually 50/50. Here are the steps to follow when switching from G40 to G13 coolant: Step-1: Flushing and draining the cooling system The boiling point of G13 coolant is 175°C (347°F), while that of G40 coolant is 170°C (338°F). The boiling point indicates the temperature at which the coolant boils, which can cause the engine to overheat if the boiling point is too low. Manufacturer Recommendation

Switching from G40 to G13 coolant involves more than simply adding the new coolant to your vehicle’s cooling system. It is important to follow the proper procedures to ensure that the new coolant is compatible with your engine and that all of the old coolant is removed. Genuine G12evo (new version of G13) coolant additives protect individual engine components, safeguarding the engine’s long service life. It contains substances that form a protective coating against corrosion, helping to prevent foaming and neutralise ‘hard’ water ie water with a high mineral content.

Engine Coolant Types

Reason 1: Mixing different types of coolant can alter the chemical properties of the coolant, which can result in corrosion, deposits, and other issues that can cause damage to your engine. You should also remove the thermostat and flush the system with clean water to remove any remaining traces of the old coolant. Step-2: Choosing the correct coolant Both G13 and G40 coolants provide optimal lubrication for water pump bearings and other engine components. Lubrication is essential for the proper functioning of engine components and helps reduce wear and tear. Color BMW, Mercedes, and Volvo had been using IAT coolant since the ’80s. Now the formulation changed to a HOAT fluid. Not much has changed in the composition or the specification since. The intervals that they need to be replaced at have, however, been extended all the way from 2 years in the ’80s initially to 3 years to 4 years in the ’90s to now “LIFETIME” in virtually all BMW applications. Guess what is the weak spot of a modern BMW… The cooling system! We wonder why?