What Type of Engine Oil Does the 2020 LaCrosse Use?
3 Answers
Buick LaCrosse uses engine oil with a viscosity grade of SAE5W30. Low-temperature operation: In extremely cold regions where temperatures drop below -30 degrees Celsius, SAE0W30 oil can be used. This viscosity grade makes cold starts easier for the engine in extremely low temperatures. If the engine oil filler cap has a dexos logo, it is recommended to use engine oil with the dexos certification mark. Choosing an oil brand: For oil longevity, Mobil oil can be used; if the oil needs strong cleaning capabilities, Shell oil is recommended; for oil with strong oil film toughness, Castrol is recommended. For example, turbocharged engines are prone to carbon buildup during high-speed operation, so Shell fully synthetic oil with strong cleaning performance can be selected.
As the owner of a 2020 LaCrosse, I've strictly followed the manual's recommendation to use 5W-30 dexos1-certified synthetic oil since purchase. This engine demonstrates exceptional fluidity during cold starts—it fires right up even on Beijing's winter mornings—while maintaining stability during high-temperature driving. Using premium brands like Mobil or Castrol, I've noticed significantly reduced engine noise and smoother acceleration after oil changes. Remember to change oil every 5,000 km or six months without delay—make it a habit. During a long road trip when stuck in traffic, the oil pressure remained stable under high temperatures, preventing wear—truly worry-free. I perform monthly dipstick checks to ensure proper oil levels and prevent leaks. For frequent aggressive driving, synthetic oil's superior wear resistance can save you from major overhauls long-term. Never underestimate dexos1 certification—it guarantees oil purity and prevents carbon buildup.
When servicing my 2020 LaCrosse, I directly referred to the owner's manual, which clearly specifies using 5W-30 dexos1 oil. If unsure, take it to a 4S shop where technicians will recommend suitable products like reliable OEM-matched brands. DIY oil changes are super easy—just keep a bottle of 5W-30 in the trunk as backup. Don’t experiment with other viscosities; wrong grades waste money and harm the engine. The manual also highlights extreme weather precautions, such as using this oil for excellent antifreeze performance in subzero Northeast winters. I maintain it every 5,000 km for fuel efficiency and smooth operation. Even in city traffic jams with less engine heat, the oil stays stable. Always check certifications to avoid counterfeit products that degrade performance.
