Propane Autogas Pays Off for Sea-Tac MasterPark

Propane Autogas Pays Off for Sea-Tac MasterPark

Conversion to propane autogas buses proves its worth in fuel savings and lower emissions

SEATTLE (June 3, 2014) — Eighteen months after MasterPark, a valet parking service at Seattle-Tacoma International Airport, converted 23 of its shuttle buses to propane autogas, the investment has already paid for itself.

In addition to delivering substantial fuel savings, the fleet’s propane-autogas-powered Ford E-450 shuttles produce lower emissions than the gasoline vehicles they replaced, according to MasterPark President Jed Goniu.

“The return on investment was very quick,” Goniu said. “It has given us the benefit of not only savings on fueling costs — which is a substantial expense in this business — but also cleaner air.”

Lower emissions are no small matter in environmentally conscious Seattle, he noted, and there’s a growing emphasis on reducing greenhouse gas emissions at airports across the country.

Propane autogas, an EPA-approved alternative fuel, emits 12 percent less carbon dioxide, 20 percent less nitrogen oxide, and 60 percent less carbon monoxide than gasoline.

"Not only is propane autogas an environmentally friendly and American-made fuel, it’s a smart business move for fleets looking to boost their bottom line," said Darren Engle, Director of Government Relations for Blue Star Gas — one of the West Coast’s largest suppliers of propane infrastructure and technology.

The cost of maintaining propane autogas vehicles is also significantly less than gasoline vehicles, Engle noted. “Most service and repair facilities require no additional costs or setup to handle them.”

MasterPark’s first foray into alternative fuel was the purchase of two compressed natural gas (CNG) shuttles. Despite government incentives, the investment simply didn’t pencil out. There was limited CNG infrastructure in the area, and MasterPark’s around-the-clock service demands constant refueling. Round trips for refueling were costing time and money.

“Being able to refuel on site is an important factor,” Goniu says. “It saves a lot in manpower when you don’t have to send a bus and driver through lights and traffic just to refuel. Being able to put infrastructure right at our locations was one of the biggest deciding factors.”The company considered electric vehicles, but found them prohibitively expensive, and their limited range and long recharging time didn’t fit into MasterPark’s 24/7 operations.

“Electric is about a $50,000 upfit per vehicle,” Goniu said, “and we would’ve needed to increase the number of buses to have enough charged buses ready to go.”

After learning more about propane autogas, Goniu contacted Blue Star Gas.

“Propane autogas made sense for our business,” Goniu said. “We liked how reasonable it was to get in and we loved the idea of putting tanks on our property.”

Blue Star Gas coordinated MasterPark’s vehicle conversions and the installation of on-site autogas refueling infrastructure, and continues to provide ongoing technical support.

“Our knowledge of alternative fuels was limited, but Blue Star Gas helped us every step of the way,” Goniu said. “They did all the permitting and design for infrastructure, picked up the vehicles, converted them, and delivered them back. They did a great job of presenting the conversion plan and providing training and orientation. They made it a seamless process.”

In addition to delivering a quick payback in fuel savings, the propane-powered shuttles are a sound long-term investment, according to Goniu.

MasterPark’s buses typically last about three to five years, or 150,000 miles, because they’re constantly running. Now, when a bus is due to be replaced, its propane autogas conversion kit can be removed and transferred to new vehicle.

“From a price point, transferring conversion equipment was the best option,” Goniu said.

You can learn more about propane autogas, available equipment options, or speak with a Blue Star Gas fleet specialist by visiting

About Blue Star Gas

Blue Star Gas is a full-service propane distribution company committed to delivering the highest level of customer care across 65,000 square miles and 14 unique markets in Washington, Oregon, California, and Utah. With 75 years in the propane industry, Blue Star Gas is a third-generation family-owned company that now brings the advantages of the Alliance AutoGas complete program for fleets to the West Coast. Through developing technologies and improved practices, Blue Star Gas is transforming the industry standard for customer service. Visit for more information.