This information is supplemental to the gasoline service manual information. Refer to the gasoline service manual for additional information.

Listed below is a check that should be performed at EACH CNG fuel fill to help ensure the safety, dependability, and emission performance of the vehicle.

Important: Always perform this check prior to each CNG fuel fill.

Inspect the condition of the CNG fill valve O-ring. Replace the O-ring if it is damaged or missing.