Coconut oil can be used as an alternative fuel for vehicles in Singapore. It is a renewable resource that is produced locally and can help reduce air pollution from vehicles. Some countries like Vanuatu already use coconut oil extensively as a transportation fuel, with over 200 minibuses running on a coconut-diesel blend on a daily basis. While coconut biodiesel has disadvantages like higher viscosity than petroleum diesel, these issues can be addressed through filtration, heating, and using it in newer diesel engines.