[mass55th]

"The gasoline engine charges the battery. It does not plug into the electric grid."

How often do they have to refill the gas tank so it can charge the battery to run the electric motor?

[dagunk]

“The gasoline engine charges the battery. It does not plug into the electric grid.”

How often do they have to refill the gas tank so it can charge the battery to run the electric motor?

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Drove aunt’s Prius from central Kansas to Marietta GA and back. Got 57 miles per gallon. I am not a gentle driver....

Nine-gallon tank gives about 500-mile range. Your Mileage May Vary *grin*.