Volumetric energy density. Either you'd fill up more often or dedicate more vehicle space to energy storage. Diesel: 10,722.2 W hours / Liter Gasoline: 9,500.

Volumetric energy density. Either you'd fill up more often or dedicate more vehicle space to energy storage. Diesel: 10,722.2 W hours / Liter Gasoline: 9,500.0 W hours / Liter CNG (3600 psi): 2,500.0 W hours / Liter NG: 10 W hours / Liter Source: https://en.wikipedia.org/wiki/Energy_density https://en.wikipedia.org/wiki/Energy_density