content: Diesel engines are heavier and bulkier because of the required high combustion ratios and cooling requirements. This means use in smaller vehicles is more difficult. In aviation, the fuel is heavier yet provides greater range. Yet the weight can make weight and balance more difficult. Which can neutralize any advantages. Making it a net loss. Diesel is a side effect of gas production. There is always more gas than diesel. Which is why it's the primary fuel for cars. The result is that gas as the primary use remains ideal. Diesel is not ideal for every mode of transportation. And higher pressures on diesel consumption will only make pricing disproportionately increase. As diesel and jet fuel (kerosene from the diesel side of the house) are central to most everything for product delivery, it means the cost of everything disproportionately increases. Diesel has its own burdens.