How often should you change the oil in a Chevy Impala?

Change it every 3500 miles if it is a pre 1995 vehicle. If it is a post 1995 Impala change it every 5,000 miles. It will say in your owner's manual.

If you don't have one, you can go to a parts store and find a maintenance schedule on the first few pages of the Haynes manual for that vehicle.

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