The Buick Encore GX requires Dexos1 Gen 2 synthetic motor oil. The exact viscosity is specified by GM for your engine and climate, but 5W-30 Dexos1 Gen 2 is commonly recommended. Always confirm the precise grade from your owner's manual or the oil cap on the engine bay.
Oil specification you should use
Dexos1 Gen 2 is GM’s current certification for gasoline engines, including the turbocharged units found in the Encore GX. Using oil that meets this standard helps ensure proper lubrication, performance, and warranty compliance. Oil that does not meet Dexos1 Gen 2 may not provide adequate protection and could affect warranty coverage.
Viscosity guidance for most Encore GX engines
The viscosity recommended by GM for most Encore GX engines is typically a synthetic 5W-30 Dexos1 Gen 2 oil. Exact grade can vary by model year, engine choice, and climate, so the definitive specification is listed in the owner's manual or on the oil fill cap. If you operate in extreme temperatures, consult a dealer to confirm the best viscosity for your specific configuration.
Engine options and oil needs
The Encore GX offers several turbocharged gasoline engines; regardless of the engine, the oil must meet Dexos1 Gen 2. The owner’s manual will specify the exact viscosity for your year and engine type, with 5W-30 being common for many configurations.
Oil change readiness: what to have on hand
If you’re planning an oil change, prepare the right oil and filter and the basic tools needed to perform the service. The following list outlines essential items to ensure you meet GM’s Dexos1 Gen 2 requirements and the correct viscosity for your Encore GX.
- Dexos1 Gen 2 synthetic motor oil (ensure it meets GM Dexos1 Gen 2 spec on the bottle)
- Correct viscosity as specified in your owner’s manual (commonly 5W-30 for most Encore GX engines)
- GM-approved oil filter designed for your engine
- Tools and supplies for an oil change (drain pan, funnel, wrench, shop towels)
Using the recommended Dexos1 Gen 2 oil with the proper viscosity and a GM-approved filter helps protect the engine, maintain performance, and support warranty coverage.
Summary
In short, the Buick Encore GX requires Dexos1 Gen 2 synthetic motor oil, with the viscosity specified by GM for your exact model year and engine. Most owners will use 5W-30 Dexos1 Gen 2, but always verify the grade in the owner’s manual or on the oil cap. For any doubt, consult a Buick dealer or certified technician to ensure you meet the official specification and maintain optimal engine health.
What oil does a Buick Encore GX use?
The Buick Encore runs best on synthetic oil, but you can use conventional oil if you're in a bind and don't have any other options. However, if you end up using conventional oil, you'll have to get it changed every 3,000 miles (around 3 months of drive time) rather than every 7,500 miles.
What are common Encore GX problems?
Common Buick Encore Problems
Many Buick Encore owners have reported stalling, power loss, and overheating. These problems often result from oil and coolant leaks, which, if ignored, can lead to significant engine damage.
Does Buick need synthetic oil?
Choosing the right oil: Always use Buick-approved oil that meets the dexos1 specification and the proper SAE viscosity grade, such as ACDelco dexos1® Full Synthetic. You can find the specific requirements for your SUV in your Owner's Manual or by consulting your dealer.
Is Buick more reliable than Ford?
Buick versus Ford: Quality, Reliability, Safety, and Value Retention Ratings: A comparison of Buick versus Ford overall quality ratings shows that both Buick and Ford vehicles are tied for overall quality in 1 model comparisons. In terms of reliability ratings, Buick has the advantage in 1 out of 1 comparisons.