Is It Normal to Have Oil in the Antifreeze?
1 Answers
The presence of oil slick and oil droplets in the antifreeze is quite normal. However, if there is a significant amount of oil, it is necessary to check whether the engine cylinder gasket is damaged. It could also indicate issues with the oil cooler or filter. Main Components of Antifreeze: The main components of antifreeze are: 50% purified water, 40% methanol, and 10% other substances. Antifreeze Replacement Method: Drain the old antifreeze, then flush the fluid channels with clean water. Add clean water to the antifreeze reservoir, then continue to pour water into the reservoir to allow it to flow continuously through the engine cooling system. Start the engine and let it idle for 3 to 5 minutes to circulate the water. Initially, the water draining from the reservoir may have a faint pink tint. Continue adding clean water until the outflowing water is clear. Note: Do not forget to remove the heater hose and drain the water from the heater core. After draining for about an hour, add the new antifreeze through the radiator hose, which allows the antifreeze to flow quickly into the radiator. Then, add another container of antifreeze to the antifreeze reservoir until it is nearly full. Start the engine and let it run for about 10 minutes. During this time, the coolant level will drop slightly as air is purged from the system. Add more antifreeze until it reaches the "MAXT" mark on the reservoir.
