1. Biofuel is a renewable and sustainable energy source, while crude oil is non-renewable. Food crops like palm oil or sugarcane can be replenished in a relatively short period of time. Food wastes are readily available and in abundance in big, populated cities. Biofuel made from these sources is renewable and sustainable.
In contrast, crude oil reserves are depleting fast and are projected to run out in decades.

2. Biofuel from food crops is a cleaner source of energy as the carbon dioxide released during its combustion will be offset by the carbon dioxide absorbed during photosynthesis carried out over the food crops’ lifetime.
Crude oil, when combusted, produces air pollutants like sulfur dioxide, and releases carbon dioxide which is not offset by carbon dioxide absorption during photosynthesis.