How hard would it be to convert my '93 Civic to run on propane ? I'm wanting to reduce my emissions as much as possible for the times that I need to drive the car. I saw an article on the internet that stated that newer cars with fuel injection wouldn't really benefit from a propane conversion and that mainly cars that have a carberator would see a drastic reduction in emissions. Is this true ? If so, it doesn't seem like it would be worth it. What are the drawbacks to running on propane ? I'd like to make the car an EV, but I need to do something quickly since I need the car to get to work and back and can.t afford to have the car out of comission for 6months.