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Larry Riffle

Larry Riffle
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  • Profiting from the Pickens Plan: FAN, Clean Fuels, Fuel Systems [View article]
    I worked for TXDOT 32 years, during that time we ran vehicles on CNG and propane , the units would run okay. one problem was, CNG tanks took up most or all of the trunk space on cars and a large part of the bed in the pickups. Natural gas has 20% less power output than gasoline or propane. Houston district bought CNG dedicated pickups, 100 miles between fillups. It did'nt take them long to convert to propane, about 200 miles on a large tank. The bifuel cars were changed over to propane also for improved fuel mileage. The same story all across the state. TXDOT spent thousands converting from CNG to Propane on these units. Don't expect to drive 300 miles before you need to fillup, you will be stopping quite a bit at a CNG fill station for a 1500 mile trip. Propane is the better fuel, more power and better fuel mileage. One draw back propane gas, it's heavier than natural gas, if you get a leak on propane it will settle to the ground and the natural gas will go up.
    Aug 13, 2008. 03:15 AM | Likes Like |Link to Comment
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