A few years back, we had 3 CNG powered E-350's used as accident investigation vans. A good portion of the time, they ran fine, but every now and then they had loss of power when accelerating from a complete stop. Felt like you were pulling a 20,000 pound trailer with its brakes on!

They also spent a LOT of time in the shop for various engine repairs. Not a good choice for emergency vehicles. Perhaps someday in the future they will make vehicles that work better with CNG.


reguy