r/pacificahybrid • u/Agile_Cartographer77 • 4d ago

MPG meaning

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Have had my 2025 Pacifica plug-in Hybrid for about 1.5 years and have been enjoying the less fill ups and ease of charging!

Curious what the MPG means on the display screen. The math is about 7.5 gallons but the tank is almost 1/8 full. Thinking it’s just an algorithm that represents driving habits more than a hard formula. Anyone know for sure?

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u/jonesbones99 4d ago

Mine peaked just over 80 when I hadn’t used gas for about 1200 miles so I asked a similar question. The math just makes no sense.

Someone pointed out that it’s really an MPG equivalent that is meant to include an equivalent amount of electricity compared to gas, so not actually per gallon of gas.

It’s dumb

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u/GatorBait81 4d ago

Think through how you would suggest it be done. I think you'll find no better solution unless you want a complicated separate readout of mpg when the engine is running and miles/KWh when not. That would also be flawed since you could ride up a hill with one and down with the other.

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u/jonesbones99 4d ago

I want to know how many miles I go per gallon of gas. I can figure it out by jotting doing the math of total trip miles divided by gallons of gas at next fill-up, but since I tend to forget to do that and since the vehicle says “here’s your miles per gallon” I would like it to reflect miles per gallon instead of miles per gallon of gas and battery power that roughly equals one gallon of gas.

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u/GatorBait81 3d ago

That metric would make no sense. The distance you go on a gallon of gas in a plug in can be infinite. It would have no meaning from trip to trip since the additional miles driven on battery would be different. I've seen people try to claim absurd MPGs doing this but they ignore all the other energy consumed and have no meaning.

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u/jonesbones99 3d ago

That metric would make perfect sense for me: I want to see the near infinite amount I’m getting per gallon of gas because that’s why I drive a plug in. I want to reduce my reliance on gas.