A Guide To Fuel Efficient Driving — EVs Vs Fossil Fuel: The Showdown
Published on January 18th, 2021 | by Barry A.F.
January 18th, 2021 by Barry A.F.
This is a comparison article for the Guides to Fuel Efficient Driving. They present practical advice on how to increase your fuel economy which reduces carbon produced and saves you money. In case you missed them:
Each facet brought discussed in all three articles is summarized below, compared, and the superior technology highlighted between Electric Vehicles (EV) vs Internal Combustion Engine (ICE) vehicles:
|Less efficiency variation between models in the same class||Huge efficiency variations between models in the same class||EV|
|Almost no efficiency loss due to age||More efficiency loss due to age||EV|
|Some range loss due to battery wear, at EOL decades later the batteries will be toast.||Some to moderate efficiency loss due to component wear, at EOL repair is not cost effective||EV|
|Less complex technology||More complex technology (direct injection, transmissions etc)||EV|
|Less preventive maintenance throughout the vehicle’s lifetime (belts, oil changes etc).||More preventive maintenance throughout the vehicle’s lifetime (belts, oil changes etc).||EV|
|Less maintenance/repair costs over its lifetime||More maintenance/repair costs over its lifetime||EV|
|Higher upfront cost||Lower upfront cost||ICE|
|Lower lifetime total cost||Higher lifetime total cost||EV|
|Low tire pressure causes efficiency loss||Low tire pressure causes efficiency loss||Neither|
|Aerodynamics are easier to optimize at the design stage due to less component cooling needs||Aerodynamics are harder to optimize at the design stage due to more component cooling needs||EV|
|Tire rolling resistance does influence efficiency||Tire rolling resistance does influence efficiency||Neither|
|Cold “engine” does not appreciably affect efficiency||Cold engine greatly affects efficiency||EV|
|Combining trips saves some cabin conditioning energy||Combining trips saves a huge percentage of fuel||EV|
|Zero idling loss, some cabin conditioning loss if needed||Incessant idling loss, increased if cabin conditioning is needed||EV|
|Short trips exact little electricity penalty||Short trips exact huge fuel penalty||EV|
|Higher mileage in city vs highway driving||Lower mileage in city vs highway driving||EV|
|Lower mileage in highway driving vs city driving||Higher mileage in highway driving vs city driving||ICE|
|Wind resistance increases as a squared value of speed||Wind resistance increases as a squared value of speed||Neither if the aerodynamic resistance is the same, but EVs are easier to design to be more aerodynamic|
|Lower highway speed increases efficiency||Lower highway speed increases efficiency||Neither|
|Flat “engine” efficiency curve||Varied engine efficiency curves, hard to optimize for||EV|
|Wind speed and direction affects mileage||Wind speed and direction affects mileage||Neither if aerodynamic resistance is identical between the two vehicles|
|Rate of acceleration does not appreciably affect efficiency||Rate of acceleration does appreciably affect efficiency||EV|
|Typically no transmission||Travelling in lower gears is less efficient for the same trip||EV|
|brake-gas-brake-gas-brake moderately efficient||brake-gas-brake-gas-brake very inefficient||EV|
|Coasting saves some electricity||Coasting saves a great deal of fuel||EV because regen + coasting is superior to coasting|
|Timing traffic lights saves some electricity||Timing traffic lights saves a lot of fuel||Neither as both benefit|
|Regen efficiency is typically 66-75% round trip||Regen efficiency is 0%||EV|
|Highway stop and go as efficient as EV city mileage||Highway stop and go often even less efficient than ICE city mileage||EV|
|Air Conditioning will increase electricity usage||Air Conditioning will increase fuel usage||Neither|
|Winter tires will increase electricity usage||Winter tires will increase fuel usage||Neither|
|Clearing body of snow will increase efficiency||Clearing body of snow will increase efficiency||Neither|
|Driving in snow/rain will reduce efficiency||Driving in snow/rain will reduce efficiency||Neither|
|Wind resistance is higher in winter||Wind resistance is higher in winter||Neither|
|Cabin heating uses propulsive fuel in every circumstance.
However pre-conditioning can be done while plugged in.
|Cabin heating uses propulsive fuel in only limited circumstances||ICE|
|Headlights are typically LED from the factory||Headlights are typically halogen, using more energy. Some are LED from the factory||EV|
|No need for a block heater.||Block heater reduces fuel use.||EV|
|An EV is eco mode||Eco mode saves some fuel||EV|
|Winter electricity is identical to summer electricity.||Winter gas contains less energy per liter/gallon||EV|
|Drafting saves fuel but is dangerous||Drafting saves fuel but is dangerous||Neither|
|Avoiding convoys is wise||Avoiding convoys is wise||Neither|
|Parking in strategic locations saves electricity||Parking in strategic locations saves fuel||Neither|
Not Covered In Any Part:
|No tailpipe pollution||Most of an ICE vehicle’s operating pollution comes before the catalytic converter is heated up (short trips)||EV|
|Low cost of fuel, often 1/4 to 1/2 the cost of gasoline||High cost of fuel and subject to the whims of OPEC||EV|
|Drive-thrus only require cabin conditioning fuel||Drive-thrus waste fuel immensely in idling and cabin conditioning.||EV|
In regards to efficiency, Electric Vehicles destroy fossil fuel powered vehicles. And where there is a disadvantage a bit more low cost (and easily made renewable) electricity will typically make up the difference.
Thanks to commenter jonesey for the idea for this comparison article.
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