What is the oil specification for the Buick Envision?

[McEliza]

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.

[VivienneAnn]

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.

[OSkylar]

Having repaired Buick vehicles for over a decade, the most commonly used engine oil for the Envision is 5W-30 full synthetic. Pay special attention to look for the dexos1 certification mark on the oil container - this is particularly crucial. The newer engines with cylinder deactivation technology have higher requirements for oil fluidity, while the older models can use regular full synthetic. Two practical observations during oil changes: first, avoid overfilling - the ideal level is slightly above the midpoint on the dipstick, as excessive oil increases crankshaft resistance; second, in sub-zero winter conditions, it's best to warm up the engine beforehand to ensure complete drainage of old oil. The most accurate way to check the specific oil type is by providing the VIN, as the maintenance system can retrieve the factory standards. After servicing, remember to reset the dashboard oil life indicator, otherwise the constant reminders can be quite annoying.

[LeAdelyn]

Last month, I did a lot of research on the engine oil for the Envision. The mainstream recommendation is 5W-30 full synthetic oil. The number before the W represents low-temperature fluidity, which is very suitable for winter use. The key is to find oil labeled with the Dexos1 Gen2 certification, as this standard has high requirements for cleanliness and oxidation resistance. Different driving habits should also be considered: for frequent highway driving, slightly higher viscosity oil can be chosen, while lower viscosity oil is more fuel-efficient for city commuting. Once, I noticed oil stains around the filler port, and the mechanic said it was due to inferior oil causing the seal to age. Now, I make it a habit to check the oil dipstick every 5,000 kilometers for color changes, and if it turns black, I perform maintenance ahead of schedule. Actually, the manufacturer's manual is the most authoritative source; you can find the information on the page with the vehicle identification number.