6.7 cummins coolant

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The Zerex phosphate-free concentrate coolant is the best diesel coolant for the 5. It is approved by Cummins for use in its diesel engines and can also be used on European car models. One of the reasons it is Cummins approved is that it is formulated using Hybrid Organic Acid Technology chemistry. This formulation protects against rust and corrosion. And while it does contain silicates, it is in a very low quantity.

The coolant is phosphate-free and uses virgin ethylene glycol. The coolant is gold in color and does not contain 2-ethyl hexanoic acid, which is found in Dex-cool coolants. Designed for new models, the ACDelco dec-cool extended life coolant is a silicate and phosphate-free coolant that lasts for up to , miles. It can protect brass, cast iron, steel and copper components from corrosion. The liquid is orange in color and minimizes the breakdown of metal parts that come into contact.

It is compatible with engines that use Dex-cool coolants. However, you can use it on a vehicle not originally using dex-cool coolant. You will have to replace the coolant after 30, miles, though. This concentration is formulated using Carboxylate technology, making it ideal for hybrid cars as well.

Changing the antifreeze on a Cummins diesel engine is pretty straightforward. You will need a 5 or 6-gallon bucket and a funnel. Twist the dial to the left, and place the bucket under the radiator.

The coolant should pour out into the bucket. This may take some time. To speed up the coolant drainage, loosen or remove the radiator cap. Once the coolant has drained, tighten the white dial. Use a funnel to pour about half a gallon of distilled water into the radiator cap.

Check for leakage under the radiator, and if there are no leaks, add the coolant. You will notice that the radiator is overflown. You may have to drive to get the water to drop. Once this is done, close the radiator cap. Not every antifreeze will work with your Cummins engine. Knowing what kind of coolant to buy for your engine is therefore essential. Here are some of the things you need to look for when shopping for the best antifreeze for Cummins diesel.

Some antifreeze comes premixed with water. This is a good thing as it means you do not have to do the mixing. However, most antifreeze comes undiluted, and you have to dilute it with distilled water when adding it to the radiator. Both antifreeze options are good, and it will depend on your preference. If mixing water and the antifreeze at the correct ratio gives you trouble, a pre-diluted choice will be ideal. However, if you want to control how much water you add to your antifreeze, go for undiluted.

The active ingredient in almost all antifreeze is a compound known as ethylene glycol. This compound is highly toxic but very sweet. Because of this, modern coolants come with another ingredient known as a bittering agent. The purpose of this is to make the ethylene glycol bitter to prevent animals and even kids from taking it. Whether a coolant has a bittering agent or not will not impact its performance. Other ingredients include silicates, phosphates, and nitrates. Some coolants do not contain silicates or phosphates and can be better for diesel engines.

The recommended coolant for the Cummins engine is actually silicate-free. These types of antifreeze are common in older cars, particularly those made before the mids. These coolants use silicates and phosphates to protect metal parts from corrosion and are usually bright green in color. These coolants should be flushed out after every 30, miles. These types of coolants are used in newer car models and do not contain silicates or phosphates.

Instead, they contain carboxylic acids to inhibit corrosion. The colors of these coolants range from pink, orange, bright red, blue, and dark green. It is recommended to flush out these coolants from the cooling system after , miles. They are found in most modern cars and are usually yellow, pink, turquoise, blue, or purple in color.

These coolants need to be flushed after every , miles and contain added silicates and phosphates. So what is the best coolant for diesel engine? Hybrid organic acid technology-based coolants are recommended for diesel engines and, in particular, for Cummins diesel engines. The primary purpose of the coolant is to protect the engine from overheating and freezing.

As such, the temperature range it can withstand will also be necessary. The best antifreeze for diesel engines will typically be able to withstand temperatures as low as degrees celsius.

According to the manual, the Cummins diesel uses an antifreeze with hybrid organic acid technology or HOAT. The manufacturer recommends using coolants with this technology. Yes, the antifreeze used on diesel engines typically contains supplemental coolant additives or SCA. These additives help to protect the cylinder walls from corrosion and erosion. The 6. This means 2. The 12 valve Cummins engine holds a capacity of 6 gallons of distilled water and coolant mixture.

Close search. Shipping calculated at checkout. Quantity must be 1 or more. Add to cart. Proprietary hybrid organic acid HOAT formulation is further enhanced with anti-scalant, anti-fouling and water-pump lubrication additives.

Phosphate-, nitrate-, nitrite-, silicate-, borate and amine-free. Directions for Use Do not add water. Do not remove radiator cap when engine is hot. Clean up and dispose of properly following local regulations.

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The impurities, unwanted substances, contamination, and pollutants are present in either the flowing water or the cooling system. Moreover, it helps limit corrosion and inhibits the deterioration of the system.

The function of a Cummins water pump is to thrust the coolant via the cooling system into the appliance and then move it over the radiator. In the absence of a water pump, the coolant will not work efficiently. In other words, it enhances the circulation of water flow within the system. It not only supplies fuel to the ignition chamber but also aids in the splashing of outfitted consumables. As discussed earlier, the cooling system lowers the temperature and helps in stimulation.

The full description of the process happening inside the engine is described here. Water transfers via the heat exchanger and are pulled towards the water pump. The water flow is split here into two streams. One stream moves towards the barrel belfry water transition over the damp drain duct. The passage is headed by the upward barrel head and infused sleeves.

The whole route is diluted. Water travels through this passage and is directed towards the Cummins after-cooling system. The temperature regulator then adjusts the temperature in the flowing water. It can be adjusted manually—the other stream that ran out from the water crater and passed through the oil cooler. The damp drain duct enables the water to move over the barrel liners, in which injectors are placed. The temperature is regulated through the thermostat.

The whole process is repeated, and the stream of water is cooled at the desired temperature. The Cummins Cooling system diagram is the pictorial representation of the cooling system depicting its various parts and the location of the different components in the system. The interconnection of these parts and their function can be understood easily with the help of a labeled diagram.

After the understanding the location of various factors, it is easy for the technicians to understand the significance of the components and to locate the wear and tear as well. The price of the Cummins cooling system varies depending upon the quality of components being installed. Various dealers sell the cooling system. The Cummins cooling system provides the pictorial representation of the parts such as oscillation damper, water pump, injector, water filter, damp drain duct, waft squeezer, aftercooler, thermoregulator, idler sheave, associating cane, major oil transition, and fuel equip tunnel.

If the thermoregulator stops working in the cooling system, there are chances for an unregulated temperature. It might cause an overheating or excessive drop in the temperature. Extreme heat can cause the burst of the engine, and a disproportionate decrease in the temperature can cause the solidification of the flowing water.

The faulty thermostat can be indicated with the temperature gauges pre-installed in the cooling system. The lubricating system helps to grease the parts and to minimize the friction between the running machinery. It lubricates the engine and aids in the smooth functioning of the machine. At the same time, the Cooling system assists in dropping the temperature of the engine and prevents the system from overheating.

The turbocharger of the cooling system does the compression flowing air in the engine. While compressing the air molecules, the particles come closer, reducing the space between them. The decrease in the area allows more fuel to be injected into the engine.

The turbocharger works on the principle of centripetal force. The turbo allows the air particles to rotate. The bypass is controlled by a thermostat and opens when the engine reaches operating temperature.

Assuming you are talking about a Ram with the 6. If your Cummins engine is low on coolant, you can easily and quickly add more to bring it back up to the proper level. On some models, it may be located on the passenger side.

Remove the cap from the reservoir and clean any debris or grime from around the opening. Do not overfill! Replace the cap and screw it on tightly.

Start up your engine and let it run for a few minutes to check for leaks. The amount of coolant it takes can vary depending on the model and make of your truck, but a 6. This helpful guide will show you where all the major cooling components are located and how they work together to keep your engine running at its best.

The 5. The radiator is responsible for drawing heat away from the engine and dissipating it into the air. The water pump circulates coolant throughout the engine to keep temperatures low.

All these parts work together in order to keep your 5. So if you ever need to troubleshoot a cooling issue, be sure to reference this handy diagram!

We also have a team of experts on hand to answer any questions you may have about your cooling system. The Ram is a powerful truck that can tow up to 12, pounds.