The 2018 GMC Terrain oil type and capacity is 0w-20 and 5.3 quarts. Your oil needs to be changed eventually. Every 5,000 to 10,000 miles is a good rule of thumb. If You don't change it, there will be problems with the engine. Having high quality oil is key for the engine to run smoothly. You will run into issues with the oil at some point. A common problem is an awful burning smell. This needs to be inspected as soon as possible or the car might explode. Bad oil can cause the engine to stop working. You could experience terrible gas mileage. Knocking noise may come about from the engine.
Pat T.
January 2, 2020
The oil type for 2018 GMC Terrain is a full synthetic with different viscosity by engine type. The 1.5L 4 -cylinder engine calls for SAE 0W-20. The AWD model can hold 5.3 quarts and the FWD holds 4.2. The 1.6L uses SAE 5W-30 and has the capacity for 5.3 quarts. The 2.0L 4 -cylinder also runs on SAE 5W-30, but the FWD model can hold 5 quarts of oil and the AWD holds 6 quarts.
david p
December 6, 2021
0-20 4.5 quarts
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