How Many Liters of Engine Oil Are Needed for an Atenza Oil Change?
2 Answers
The Atenza requires 4.4 liters of engine oil. The factory-recommended oil for the Atenza is Mazda's specialized full synthetic oil, 5W-40. For later maintenance and oil changes, you can choose from brands such as Mobil, Castrol, Shell, and Total. Any full synthetic 0W-20 oil is suitable. Among these, Shell's Urban Light 0W-20 offers good value for money and excellent noise reduction. For the 2020 Atenza model, using 0W-20 oil may result in louder engine noise, so 5W-30 oil is recommended. For the Atenza 2.5L engine, Castrol's Edge 0W-20 is recommended. For the 2021 Atenza 2.5L Skyactiv Sport model, Mobil, Castrol, or Great Wall viscosity 0W-20 oils are recommended. The viscosity of engine oil changes with temperature, so it's crucial to pay attention to its performance under both low and high temperatures. For example, in 5W-30, the first number indicates low-temperature fluidity. 5W means it can withstand temperatures as low as -30°C. The smaller this number, the better the low-temperature fluidity, ensuring smoother cold starts for the car. The second number represents the oil's kinematic viscosity at 100°C. A higher number means the oil can maintain its viscosity better at high temperatures, which can also be understood as better lubrication performance under high-temperature conditions. The method for changing the engine oil in an Atenza is as follows: Wait for the engine temperature to cool down, allowing the oil to flow back into the oil pan. Use a wrench to loosen the oil drain plug and place an oil pan underneath to catch the old oil until it stops flowing. Start the engine and let it run for 30 seconds to allow the oil in the main oil passages to drain out. Use a specialized wrench to remove the oil filter. Apply some oil to the gasket of the new oil filter and hand-tighten it clockwise. Pour the new engine oil into the oil filler cap on the engine's valve cover. Typically, three-quarters of a bottle is sufficient. Start the engine and let it run for 5 minutes, checking for any leaks around the oil drain plug and oil filter. If leaks are found, they should be repaired. After stopping the engine, pull out the dipstick to check that the oil level is within the standard range.
I've been driving the Mazda Atenza (Mazda6) for a while now, and changing the engine oil is one of my routine maintenance tasks. Take my 2.5L engine as an example—the manual recommends about 4.8 liters of oil. Every time I go to the shop or do it myself, I buy a 4-liter bulk container and a small 0.8-liter bottle to match. However, remember that there's always some residual oil left when draining the old oil, so when refilling, I use the dipstick to check the level. It's best to fill it up to the middle mark—not too much or too little—otherwise, it could lead to higher fuel consumption or insufficient lubrication, both of which are troublesome. It's also a good idea to replace the oil filter at the same time to ensure more stable oil pressure. I've tried using full synthetic oil, which lasts longer—one change can cover up to 8,000 kilometers, saving both money and hassle. In short, the standard oil capacity for the Atenza depends on the engine model—the 2.0L version takes about 4.2 liters. Before doing it yourself, always check the manual or consult a professional shop to be safe.
