We had a lot of those units in the ADOT fleet. CNG worked good in the 4-cylinder engines that I had in the motor pool, but we had a lot of trouble with the V-6's and V-8's stalling out in the middle of intersections - downright dangerous. The Governor wanted to be politically correct so he had the Governor's Lincoln Town Car converted. After it stalled in the middle of intersections a few times, they just burned regular gas (the public never knew the truth).
We never did get most of them to pass the same emissions test that regular gas vehicles have to pass.
The only good thing about them was they ran on CNG and then switched over to regular gas when the tank went empty, so it would travel a long distance without refueling - but there weren't any other stations away from Phoenix or Tucson so we just ran on regular gas.
Might be okay if you have a 4-cylinder engine; any other engine you should think twice about getting CNG conversion.
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Today's Featured Article - The Great Escape - by Dave Hollrah. It all began Monday with a little baling of second crop on the lake shore field, and as I drove out past my sister and her hubby's place, this small calling sound could be heard from the general direction of their manure pile. Out of the yard, over the cows and bale piles, through the dozer piles, poplars, and brush, out onto the ditch grade road, past the noisy 6.2 diesel engine pulling my well traveled Suburban along. Well it sure didn't take me long to figure out what it was because I alrea
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