Ford to offer 2014 F-150 with natural gas option
Green Car Congress
JULY 31, 2013
Silverado 2500HD and 3500 HD and Sierra HD). liter V6 engine will be available this fall with a factory-installed, gaseous-fuel prep package that includes hardened valves, valve seats, pistons and rings so it can operate on either natural gas or gasoline through separate fuel systems. 2014 F-150 light-duty pickup. When the 3.7-liter
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