Diesel engines require coolant replacement every two years (or 30,000 miles), whereas gas engines only require coolant replacement every five years.
What coolant should I use for diesel?
Dry liners are found in Powerstroke engines as well as other mid-size diesel pickup vehicles. On a gasoline engine, these liners are part of the cylinder block. However, this does not rule out the possibility of issues. Cavitation can happen anyplace in a diesel engine as a result of the strong combustion explosion. It’s a good idea to check the nitrite level and the antifreeze condition on a regular basis. The best course of action is to follow the manufacturer’s recommendations for service.
Coolant service is normally recommended every two years or 30,000 miles for diesel trucks utilizing green antifreeze. Service intervals for diesel engines using extended-life coolant are around five years or 100,000 kilometers. Periodically check the antifreeze every six months to be on the safe side.
The radiator cap is an important but frequently ignored component of the cooling system. Make sure the radiator cap is in good working order when doing a routine inspection. Test the cap to ensure that the coolant system is operating at the proper pressure. The coolant system’s pressure is maintained by the cap, which prevents boil over.
Can you use 50/50 antifreeze in a diesel?
Prestone HD 50/50 Prediluted NITRITE FREE Extended Life (ELC) Antifreeze/Coolant is designed to work with any nitrite-free HD Organic Acid Technology (OAT) coolant in any diesel-powered commercial vehicle or stationary engine with aluminum or other metals. Its nitrite-free OAT formulation is based on a concentrated blend of premium long-lasting inhibitors that protect against temperature extremes, rust, cavitation corrosion, scale, and premature water pump failure. Prestone HD 50/50 Prediluted NITRITE FREE Extended Life (ELC) is an antifreeze/coolant concentrate and demineralized water blend that provides protection for up to 600,000 miles/12,000 hours**. Prestone HD 50/50 Prediluted NITRITE FREE ELC can be added to the antifreeze/coolant of any HD commercial or stationary engine when used as specified.
Can you use regular antifreeze in a diesel tractor?
Coolants used in older engines, such as those found in antique tractors, use Inorganic Acid Technology (IAT), which has a two-year or 30,000-mile life duration. Green is the most common color for IAT coolants.
Organic Acid Technology (OAT) coolants, which were first introduced in 1994, have a five-year or 150,000-mile life duration. Coolants made of OAT come in a range of hues.
To add to the confusion, hybrid combinations of both IAT and OAT compositions are now available.
Finally, coolants are frequently divided into three categories based on their intended use: automotive, heavy-duty, and universal (for both car and heavy-duty engines). The level of chemicals used to defend against rust and corrosion determines the differences between these categories.
Confused? Follow this broad rule of thumb to simplify your antifreeze selection:
Usage green IAT coolants rated for light-duty or universal use in antique tractor engines. Follow the manufacturer’s coolant recommendations when it comes to high-powered modern tractors, as well as today’s vehicles and trucks.
Is antifreeze different for diesels?
The antifreeze used in a diesel engine differs from that used in a typical gas engine in that diesel antifreeze contains a specific ingredient that prevents cylinder wall erosion.
Things alter as the temperature drops below freezing. We can’t have water in an engine block since it will grow and ruin it quickly. What was formerly referred to as “antifreeze” was created from an ethylene glycol-based base fluid (EG). The original combination would be EG with corrosion inhibitors added specifically, silicates and then topped off with the required amount of water to reach the required freezing value. Inorganic additive technology (IAT) products are the corrosion inhibitors in question. The term “inorganic” will become evident in the near future.
This is, of course, the well-known “green” coolant. It’s all good. And it’s still fine for a variety of engine applications, including today’s small diesels as well as numerous older items that are still in use. It has been an excellent ally for many years, and we may anticipate it to live for many more.
As a side note, the term “antifreeze” is a misnomer. The product has a higher boiling point than the competition, in addition to not freezing.
What color is diesel engine coolant?
When it comes to engine maintenance, coolant is just as crucial as oil. Even if today’s coolant formulas are more advanced than ever, cooling system performance is still responsible for 50% of all early engine failures. Cooling systems are frequently overlooked, yet unresolved issues with the coolant can quickly escalate into far more serious difficulties with engines, transmissions, and hydraulics.
Depending on the type of formulation and brand, coolants come in a spectrum of hues.
There is currently no industry standard that manufacturers must adhere to while selling their goods. As a result, coolant system upkeep can be more difficult.
Selecting the proper engine coolant helps extend the life of your heavy-duty engine. The manufacturer adds coolant to a new vehicle based on the engine’s specs. Identifying the coolant that is currently in your cooling systems, on the other hand, might be a lot more complicated.
Water and coolant are both transparent liquids. For light-duty and heavy-duty engine cooling systems, coolant/antifreeze color was typically painted green until recently. Manufacturers began to use distinct dye colors to identify coolant kinds when long life (LLC) and extended life coolants (ELC) were introduced. Color also aids in the detection of coolant system leakage.
- Conventional low-silicate coolants used in vehicles and light-duty trucks are known as inorganic acid technology (IAT). Supplemental coolant additives (SCAs) for heavy-duty engines are included in IATs to protect the engine against pitting and corrosion. The color is primarily brilliant green.
- Organic Acid Technology (OAT) is a coolant that uses organic acids and has a long service life. OAT coolants are suitable for use in diesel engines, both heavy and light-duty, as well as natural gas and gasoline engines. Color: orange or red, although depending on the manufacturer, it can also be yellow, blue, crimson, or dark green.
- NOAT stands for Nitrited Organic Acid Technology. For engine liner pitting protection, NOAT coolants contain nitrite and, in rare cases, molybdate. The color is usually red.
- HOAT (Hybrid Organic Acid Technology): These coolants combine the benefits of both IAT and OAT solutions, providing corrosion protection for aluminum parts and rustproofing for iron components. Yellow or orange is the most common color, but it can also be pink, purple, or blue.
As you can see, the type of coolant in a cooling system is not necessarily determined by its color.
Problems with Mixing Colors
Chemical reactions in the coolant reservoir can occur when coolants are mixed. When a green (IAT) and an orange (OAT) are mixed, a brown gel-like sludge forms, which might eventually clog the cooling system.
Also consider red coolants (OAT, HOATs, and NOATs), which can be nitrite or nitrite-free blends. When two red coolants with different blends are mixed, there aren’t enough of the proper additives remaining in the mixed formulation to guard against corrosion, which can drastically diminish engine protection.
Identifying Coolant in Your System
Because a consistent manufacturer-recommended coolant is utilized in single OEM fleets, it may be easier to detect coolant. However, you can see a range of coolants being utilized in mixed fleets and older fleets. Coolant top-offs are virtually always performed outside of standard maintenance schedules, whether the vehicle is new, old, mixed, or single OEM. These flaws make it difficult to tell what is being used, especially because color isn’t always a reliable indication. Do you see a purple liquid in the reservoir? It’s possible that this is a mixture of two separate coolant types.
The engine manufacturer is a good place to start. Confirm your engine’s and situation’s recommended coolant type. Incorporate