Carbon monoxide is the leading cause of accidental poisoning deaths. It's a dangerous and potentially lethal toxin. Excessive exposure to auto exhaust can cause brain damage and even death. If you see, smell or hear exhaust anywhere but the tailpipe, get an auto inspection right away. At Greenhaven Shell in Sacramento we install quality NAPA replacement parts. Give us a call at 916.422.6053 and let us help keep you safely and economically on the road.