In the case of New Zealand from the mid-70's to the early 80's, CNG (compressed natural gas) was subsidised by the government and there was a very large uptake. My dad had it installed in his Toyota Hiace van and Ford Falcons. This was during the oil shortages era.
When oil became cheap again, the government stopped the subsidies and it was back to petrol. The tanks and the pumps at the services stations were ripped out and sold to the Indians, Eastern Europeans and the Chinese.
When oil became cheap again, the government stopped the subsidies and it was back to petrol. The tanks and the pumps at the services stations were ripped out and sold to the Indians, Eastern Europeans and the Chinese.