...from the attached MT article...
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Out of the 8.9 million barrels of gasoline consumed daily in the U.S. on average, only 1.8 million gallons, or approximately 20 percent, actually propel an internal combustion vehicle forward. The other 80 percent is wasted on heat and parasitic auxiliary components that draw away energy. As the world begins its shift to EV proliferation, the good news is electric vehicles are far more energy efficient on the road.
Compare that to only 31-35 percent energy loss in the average electric vehicle (average EV battery size is about 63 kWh), before factoring in potential recuperation from energy regeneration. Its losses can be broken down into approximately 10 percent of the source energy from the grid lost in the charging process, 18 percent lost to the drivetrain motor components, up to 4 percent lost to auxiliary components, and another 3 percent lost solely from powertrain cooling and other vehicle systems.
Comparing the two, "the rough math pencils out to the energy equivalent of around 2 million barrels of gasoline per day, which is a substantial savings over the 8.9 million barrels currently used," according to Yale Climate Connections. But what about the power plants used to "refuel" those electric cars? Are they any more efficient than gas-powered cars? Well, yes. Much more efficient, in most cases.
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Have my links helped you see the value of moving to EVs?...in any event, you can confidently drop that source you were relying on.
Link: https://www.motortrend.com/news/evs-more-efficient-than-internal-combustion-engines/