Ford’s 3-year or 36,000 mile bumper-to-bumper warranty applies, as does the Ford Powertrain warranty of 5 years or 60,000 miles. Furthermore, when a PowerFuel CNG prep truck is converted, the Ford basic engine warranty of 5 years or 60,000 miles is retained because the conversion meets Ford’s Q185 standard for gaseous fuel conversions. As a Ford certified Small Volume Manufacturer (SVM), PowerFuel warrants the emissions related components for 8 years or 80,000 miles.
The system is EPA certified for either CNG-only or hybrid (bi-fuel) options for 2011 or 2012 model years.
Source: PowerFuel CNG Systems