We have had our Volt two years now we drive it 20,000 miles a year. For a total of 40,000
Each year 16,500 miles are all electric EV solar powered miles and 3,500 are gas powered miles.
We have used 205 gallons of gas and the dealer provided 10 of those. So I bought 195 gallons of gas in two years to drive 40,000 miles one oil change was needed during this time.
82% EV for the two years.
Those are the numbers as I tell my kids it is fun to drive on the sun.