Early automatic transmissions had just two speeds. Now modern automatic transmissions have up to eight speeds. These sophisticated transmissions often match the fuel economy and performance of a manual transmission. Some require special transmission fluid formulas. We'll make sure you get the right type for your vehicle. 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.