In part because crude oil is used for many different things so it’s not as clear exactly what the gasoline specific emissions numbers are. Roughly speaking 50%

In part because crude oil is used for many different things so it’s not as clear exactly what the gasoline specific emissions numbers are. Roughly speaking 50% is a good estimate, but it varies quite a bit based on your assumptions. Similarly the gasoline lifecycle + ICE engine, gas tank, and transmission should be compared to the battery + electric motors + electricity not just the battery vs gasoline.