2015 Chevrolet City Express Owner Manual - Page 193

10-10 Vehicle Care Use of Substitute Engine Oils if dexos1 is unavailable: In the event that dexos1-approved engine oil is not available at an oil change or for maintaining proper oil level, you may use substitute engine oil that meets American Petroleum Institute (API) approved specifications of the appropriate viscosity grade. These oils have the API certification mark on the front of the container. Viscosity Grade Use SAE 5W-30 viscosity grade engine oil. What to Do with Used Oil Used engine oil contains certain elements that can be unhealthy for your skin and could even cause cancer. Do not let used oil stay on your skin for very long. Clean your skin and nails with soap and water, or a good hand cleaner. Wash or properly dispose of clothing or rags containing used engine oil. See the manufacturer's warnings about the use and disposal of oil products. Used oil can be a threat to the environment. If you change your own oil, be sure to drain all the oil from the filter before disposal. Never dispose of oil by putting it in the trash or pouring it on the ground, into sewers, or into streams or bodies of water. Recycle it by taking it to a place that collects used oil. { Caution Failure to use the recommended engine oil can result in engine damage not covered by the vehicle warranty. Check with your dealer or service provider on whether the oil is approved to the dexos1 specification. Engine Oil Additives/Engine Oil Flushes Do not add anything to the oil. The recommended oils meeting the dexos1 specification are all that is needed for good performance and engine protection. Engine oil system flushes are not recommended and could cause engine damage not covered by the vehicle warranty.