i am looking at buying a cavalier, is there a way to test the car on both systems, gas and cng, while test driving it? i know there is not a switch like on fords, but i have heard that there may be a way to do it. please help. does it make a difference with the year?
i have owned a 99 cav, 99 contour and 02 f150
i have owned a 99 cav, 99 contour and 02 f150
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