![]() Which Diesel Engine Oil Is Best For My Vehicle?.Freight Ton Efficiency: A Better Energy-Use Measure?.Drivers: Here’s How Your Behavior Affects your Diesel Truck's Fuel Economy.What Diesel Engine Oil Analysis Reveals About Your Engine and Oil.Essential trucking resources for unpredictable weather.What You Need to Know About Low Diesel Oil Viscosity.The Shell Rotella® Guide to Extreme Temperature Protection.Diesel Oil Additives: The Power of Shell Rotella® Diesel Engine Oil Explained.Debunked: 5 Common Myths About Synthetic Diesel Oil.The Pros & Cons of Powertrain Tech for Haulers.How Does Synthetic Diesel Oil Improve Overall Fuel Economy?.Water is the best collector of heat, but the main purpose of antifreeze is not only to cool, but to raise the boiling point and to offer freeze protection, which pure water cannot do. Different dyes are added to the antifreeze to indicate what type of coolant it represents. Remember, antifreeze when manufactured is a clear liquid. Organic Acid Technology for aluminum and iron protection along with liner cavitationīeware of how coolant has changed over the past 10 years.XLCs (Nitrite-Free Extended Life Coolant) The color of XLC is typically orange in the heavy-duty market, but may be offered in other colors. So far, it has worked well as an extended life coolant with a longer drain interval than the ELC. This antifreeze uses what is known as an Aliphatic Carboxylate inhibitor, which is nitrite free and made with other somewhat proprietary ingredients. This led to manufacturers incorporating the use of XLC (Extended Life Coolant). The second solution is to formulate a coolant that can work in this environment and not have nitrite depletion. One is to have all of the aluminum components coated to combat the corrosion problem. With aluminum components in the cooling system, there are two solutions to the corrosion problem. The OEMs realized that unless the aluminum components were coated with a non-corrosive film such as metal oxide, the corrosion problem would persist. The ELC coolant didn’t last as long and caused corrosion, leading to overheating and cooling system problems. This was a great idea until it became evident that aluminum components in the cooling system were becoming corroded and causing nitrite depletion in the nitrited coolant. In order to save weight and add fuel economy, some manufacturers opted to use aluminum radiators and other aluminum components for their cooling system. Organic Acid technology for aluminum and iron protection.Typical ELC can go for up to a five-year interval before changing is recommended. The color of ELC is usually bright red or pink. It just needs to be checked every oil change for dilution, clarity, freeze point and color. Even at this mileage, the coolant can be charged with an extender additive and continue for another 300,000 miles or 6,000 hours of engine operation. This type of coolant can be used for up to 300,000 miles or 6,000 hours of engine operation. ELC contained inhibitors known as OAT (Organic Acid Technology) or Nitrited Organic Acid Technology (NOAT), which deplete slower than traditional inorganic silicate and phosphate compounds. Toward the late 1990s, ELC (Extended Life Coolant) was introduced, which allowed for much longer intervals before the inhibitors needed to be replaced. ![]() ![]() Other inhibitors for copper and iron protection.Nitrites for liner cavitation protection.Conventional coolant does not have a very long life and should be changed roughly every two years. If the SCAs are becoming depleted, a supplemental SCA known as coolant conditioner can be added to help boost levels back where they need to be. Heavy-duty, green antifreeze often needs a check on the SCA levels during maintenance intervals. When this happens, coolant gets into the engine oil and combustion chamber and can eventually destroy the engine. The chipping effect would eventually eat through the liner into the cylinder wall. SCAs were very important in maintaining proper health for a diesel engine because they help prevent small air bubbles from forming around the cylinder liners, which could chip away at the liner. Conventional heavy-duty antifreeze coolants used inhibitors known as SCAs (Supplemental Coolant Additives) that were composed of IAT (Inorganic Acid Technology), which are inorganic compounds such as silicates and phosphates. For years, we used the typical, green antifreeze formulation.
0 Comments
Leave a Reply. |
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |