Nestlé Waters North America has deployed more than 400 medium-duty propane autogas powered beverage delivery trucks, bringing up its total propane fleet size to roughly 600 assets.

The Nestlé propane autogas ReadyRefresh beverage delivery fleet of consists of Ford F-650/750 delivery trucks, each equipped with a ROUSH CleanTech fuel system that provides 55 usable gallons of fuel, ROUSH CleanTech said in a release. The Ford 6.8L V10 3V engine with a ROUSH CleanTech fuel system is 75% cleaner than the current Environmental Protection Agency standard and 99% cleaner than diesel vehicles built before 2007, ROUSH said.

“Based on the proven emissions reduction compared with our older diesel units, and lower fuel and total cost of ownership, we knew this was the right application for us within the alternative fuel space. With propane being domestically produced, it’s proven to have a more stable cost per gallon, while the fueling and maintenance infrastructures are much more cost effective than other alternative fuel options,” said Bill Ardis, national fleet manager for its ReadyRefresh business unit.

The company now operates about 30% of its total North American fleet with the alternatively fueled trucks.The company’s vehicle operators have observed quieter engines and powertrain performances equivalent to current diesel delivery vehicles, ROUSH said in a release.

The company will continue to replace older delivery vehicles with propane autogas to reach its goal of operating 52% of it vehicles with the alt-fuel by 2019.