Diesel burns at a lower temperature than petrol and hence is more efficient from a thermodynamic perspective. This means that less fuel does more work and hence diesel tends to perform better in terms of efficiency.
Diesel has a slightly higher energy content than petrol — 38.6 megajoules/liter for diesel, 34.8 for petrol.
Diesel burns at a lower temperature than petrol and hence is more efficient from a thermodynamic perspective. This means that less fuel does more work and hence diesel tends to perform better in terms of efficiency.
Diesel has a slightly higher energy content than petrol — 38.6 megajoules/liter for diesel, 34.8 for petrol.