What kind of engine oil is best for the Buick Envision?
2 Answers
The Envision uses fully synthetic engine oil with a specification of 5W-30. The replacement capacity is 6 liters, and the replacement interval is 5,000 kilometers. You can choose international brands such as Mobil, Shell, Castrol, and Total, or domestic brands like Great Wall, Kunlun, Tongyi, and Longpan. Here is some information about engine oil: 1. Engine oil is the lubricant used in engines, composed of base oil and additives. 2. As a type of machinery, engines have specific requirements for lubricants, similar to general machinery, such as requiring appropriate viscosity, certain anti-oxidation, anti-wear, anti-corrosion, and viscosity-temperature properties. 3. The density of engine oil is approximately 0.91×10³ (kg/m³). It serves to lubricate and reduce friction, assist in cooling, seal against leaks, prevent rust and corrosion, and provide shock absorption.
I've been driving my Buick Envision for almost three years and always do the maintenance myself. I choose 5W-30 full synthetic oil every time because it meets Buick's recommended dexos1 certification. I usually go for big brands like Mobil or Castrol, and I feel the engine runs smoother with much less noise. I remember using a cheaper oil once when I first bought the car, and it resulted in slightly higher fuel consumption and concerns about engine carbon buildup. Now, I change the oil every 8,000 kilometers, and it starts quickly even in winter, saving me a lot of hassle. In short, using the right oil viscosity protects the engine's lifespan—never skimp on non-certified products to save money.
