The 2018 Chevrolet Impala oil type and capacity iS5w-20 and 5 quarts. Having high quality oil is key for the engine to run smoothly. You will run into issues with the oil at some point. Knocking noise may show up from the engine. Bad oil can cause the engine to stop working. A common problem is an awful burning smell. This needs to be inspected as soon as possible or the car might explode. You could experience bad gas mileage. Your oil needs to be replaced eventually. Every 5,000 to 10,000 miles is a good rule of thumb. If You don't replace it, there will be issues with the engine.
Pat T.
January 2, 2020
The preferred oil type for the 2018 Chevrolet Impala is SAE 5W-20 synthetic engine oil. The oil capacity for the2.5L 4 -cylinder engine is 5 quarts and the 3.6L V6 holds 6 quarts, both with a dry filter.
Trevon Bartlett
July 19, 2020
Acdelco dexos 5w30 is what I use for the v6 lt version
KJ
August 10, 2022
5 quarts of 5w30
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