The engine requires about 4.7 quarts of engine oil with a new filter, using Dexos1 Gen 2 0W-20 full-synthetic oil. Always verify the exact capacity for your vehicle in the owner's manual or with a dealer, since production changes can affect specifications.
Understanding the oil capacity for the 1.5 L Terrain
Knowledge of the precise oil capacity helps ensure the correct amount is used during a change and that the engine remains properly lubricated. Below are the key details for this configuration.
- Oil capacity with filter: 4.7 quarts (4.4 liters)
- Recommended oil type: Dexos1 Gen 2 0W-20 full synthetic
- Verification: Always check your exact capacity for your specific VIN and production date in the owner's manual or with a GMC dealer
Key capacity and lubricant details to note before an oil change:
After adding oil, start the engine, let it run to circulate, then recheck the level with the dipstick and top off if needed to reach the full mark.
Maintenance notes and practical tips
Actual oil capacity can vary slightly depending on the oil filter model and how thoroughly the engine drains. For the most accurate guidance, follow the vehicle’s service manual and use the recommended Dexos1 Gen 2 0W-20 oil format.
Summary: For the 2018 GMC Terrain with a 1.5 L engine, plan on about 4.7 quarts of engine oil when performing a full change with a new filter, using Dexos1 Gen 2 0W-20 synthetic oil. Always confirm exact specs for your exact vehicle and follow the manual for maintenance intervals.
What is the world's no. 1 engine oil brand?
Now, more than 5 decades later, Mobil 1 remains the world's leading synthetic motor oil brand.
What year to stay away from GMC Terrain?
Frequently Asked Questions: GMC Terrain Years to Avoid
A: The GMC Terrain years to avoid are 2010, 2011, 2012, 2013, 2014, and 2015. These model years have been reported to have various issues that make them less reliable and potentially costly to maintain.
What type of oil goes in a 2018 GMC terrain?
5 liters 5W-30 GMC Terrain diesel motor oil, oil filter, and hardware for 2018-19 1.6L diesel models. OEM GM Dexos2 oil standard Approval using highly advanced RAVENOL HLS CleanSynto synthetic oil technology.
What kind of oil does a 1.5 L GMC Terrain take?
SAE 0W-20
For the LYX 1.5L turbo engine, install SAE 0W-20 full synthetic engine oil in your GMC Terrain. If you have an LTG 2.0L turbo engine, use SAE 5W-30 full synthetic engine oil.


