What is the best engine oil for Buick Verano maintenance?
2 Answers
For Buick Verano maintenance, you can choose engine oil brands such as Mobil, Castrol, and Shell. The recommended engine oil specification for the Buick Verano, as stated in the manual, is 5W-30. Any oil that meets this specification can be used. The viscosity of engine oil changes with temperature, so it is important to pay special 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 kinematic viscosity of the oil at 100°C. A higher number means the oil can maintain its viscosity better at high temperatures, which can be understood as better lubrication performance under high-temperature conditions. The method for changing the engine oil in a Buick Verano 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 drain plug and place an oil pan underneath to catch the old oil until it stops flowing. Start the engine for about 30 seconds to allow the oil in the main oil passage to drain out. Use a specialized wrench to remove the oil filter. Apply some new oil to the gasket of the new oil filter and tighten it clockwise by hand. Add the new engine oil through the oil filler cap on the engine valve cover. Typically, fill about three-quarters of the oil container. Start the engine and let it run for 5 minutes, then check for any leaks around the drain plug and oil filter. If leaks are found, perform necessary repairs. After stopping the engine, pull out the dipstick to check if the oil level is within the standard range.
I've been driving a Buick Verano for many years and believe the most crucial aspect of maintenance is matching the original factory specifications for oil changes. This car officially recommends using fully synthetic oil with dexos certification, such as 5W-30 or 0W-20 viscosity, which protects the engine under both high and low temperatures. I usually opt for Mobil or Shell brands because they offer good value for money and strong durability, allowing one oil change to last 7,500-10,000 kilometers. Don't skimp on quality by using inferior oil, as it can easily lead to engine carbon buildup or wear, ultimately increasing repair costs. When changing oil, always check the user manual first to ensure the correct oil type is selected. If you go to a repair shop, ask the technician about the regular maintenance schedule—typically, a check-up every six months or 8,000 kilometers can extend your car's lifespan.
