What is the oil specification for the Buick Envision?
2 Answers
The "W" in the oil specification stands for WINTER. The number before "W" indicates the viscosity of the oil at low temperatures. A smaller number means better low-temperature fluidity, providing better engine protection during cold starts. The number after "W" represents the oil's viscosity at 100 degrees Celsius. A higher number indicates higher viscosity, offering better engine protection at high temperatures. The functions and classifications of engine oil are as follows: Functions of engine oil: Engine oil lubricates the engine, reduces friction, assists in cooling, and minimizes buffering. It helps reduce wear on engine components and extends their lifespan. Classifications of engine oil: Engine oils in the market are divided into synthetic oil and mineral oil. The replacement interval for full synthetic oil is longer than that for semi-synthetic and mineral oils. If a car uses synthetic oil, the replacement interval can be approximately 20,000 kilometers longer than when using mineral oil.
I just had maintenance done on my family's Envision at the 4S shop. The mechanic recommended using full synthetic 5W-30 oil, especially for my 2017 2.0T model. He emphasized choosing oil containers with the dexos1 certification mark, saying it provides better protection for turbocharged engines. I remember last time when I used cheaper oil to save money, the engine noise noticeably increased, and fuel consumption went up by 0.8 liters. The manual states oil changes every 7,500 km, but I've found that with more city driving in congested areas, changing at 6,000 km keeps the engine running smoother. There might be differences between model years - for example, I've heard the newer 1.5T version recommends 0W-20 oil. The oil specifications table can be found on page 32 of the maintenance manual that came with the car. The safest approach is to check the oil filler cap under the hood, as it usually has the recommended grade engraved on it.
