What’s The Worst Fuel Economy You Could Live With? Autopian Asks

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Gas prices (and diesel prices) aren’t exactly great right now. There is a war on, or a few actually, and that’s doing little to help the situation. That leads me to today’s Autopian Asks—what’s the worst fuel economy you’re willing to put up with?

Of course, this applies strictly to cars that burn fossil fuels. We can argue about how many fathoms per joule you get out of your EV, but it’s just going to confuse things. We’re talkin’ liquids here, baby.

This question is one that is important car enthusiasts and normies alike. If you’re into cars, you’re probably willing to trade off some fuel economy for better performance, or for a vehicle that truly lights up your heart. If you’re a normie, you might see cars as appliances, and you just want the best efficiency possible. Alternatively, you might demand a certain level of luxury or cargo space at the cost of some extra fuel burn.

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Drove like a tank, drank like a tank, so we called it a tank! The joke is that we were opening the fuel flap so often that it fell off. 

I grew up during the turmoil of the second Gulf War, albeit in the safe confines of Australia. We saw our gas prices hit new highs, and I was stuck driving a 1992 Ford Falcon. It had no working odometer, so I couldn’t accurately measure its fuel economy. Regardless, that 4.0-liter six sure loved to suck down the dino juice, and I’d estimate it was pulling down around 15 L/100 km around town, or around 15 mpg in your American money.

That formative experience routinely sent me broke. Since then, I’ve owned a wide variety of cars, and I’ve settled on a figure I find comfortable. It’s 10 L/100 km, or about 23 mpg. My 1998 Mercedes E240, 1992 Daihatsu Feroza, and 1992 Mazda Miata all hit about this mark. They were all cool in their own ways, and they justified their fuel use in turn.

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That’s me smiling because my car was so good on fuel.
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The Mazda B3 wasn’t just efficient, it also ran forever with little more than basic maintenance.

I’ve had more efficient cars, of course. My BMW 320D routinely achieves 29 mpg or better. My 1989 Mazda 121 was a star at 36 mpg. That made them more attractive. By contrast, I felt strongly compelled to sell my Volvo 740 Turbo wagon when its fuel economy mysteriously slipped from 19 mpg to 15 mpg over a few months.

My question to you is thus—what’s the worst fuel economy you’re willing to put up with and why? Maybe it’s for performance, maybe it’s for seating, maybe you’re making a trade-off by running big chunky mud tires. Sound off and tell me how much pain you can take at the pump!

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168 thoughts on “What’s The Worst Fuel Economy You Could Live With? Autopian Asks

  1. I am currently enduring the life of driving a 2017 Cadillac Escalade 6.2L. While it’s a great truck, I am averaging 12.9 MPG so far…. so that is as low as I’ll ever go

  2. Whatever my LX460 gets is my limit. I’m not sure what it exactly is and prefer not to look into it to closely…because it’s terrible but I love the car.

  3. Whatever my LX460 gets is my limit. I’m not sure what it exactly is and prefer not to look into it to closely…because it’s terrible but I love the car.

  4. My 22-year-old car is getting about 25mpg now. I do not drive it very often, though. I’d rather be getting 40mpg, but that would require taking out all the fun/challenges of driving.

    This survey will depend heavily on people’s uses. I have a friend with a truck that he uses for hauling an RV six times a year, and that he also uses as a daily, which for the most part he could use an EV. He’d probably love to get better mileage (15?), but mathematically cannot, because it would mean owning or leasing another vehicle.

  5. My 22-year-old car is getting about 25mpg now. I do not drive it very often, though. I’d rather be getting 40mpg, but that would require taking out all the fun/challenges of driving.

    This survey will depend heavily on people’s uses. I have a friend with a truck that he uses for hauling an RV six times a year, and that he also uses as a daily, which for the most part he could use an EV. He’d probably love to get better mileage (15?), but mathematically cannot, because it would mean owning or leasing another vehicle.

  6. I make enough money that I could afford to own a vehicle with terrible fuel economy.

    But I choose not to own a vehicle that will cause me to waste a bunch of money on fuel.

    So it’s a question of what’s the worst fuel economy that I’m willing to put up with.

    And for me, my benchmark is ‘nothing that is worse than my manual 2008 Honda Fit’… and I have been averaging 5.9L/100km or about 39 mpg (US gallons) over the last 5.5 years/160,000km I’ve driven it.

    And thus, my next vehicle will be a plug-in of some sort… either a good plug in hybrid or a BEV.

    (and I do have an outlet next to where I park to charge it overnight).

    Oh and for those who say ‘get another Fit’, the problem with that is finding one for a reasonable price that isn’t beat to shit. All of the ones in good condition without too much mileage in my area cost almost as much as a Prius Prime and the same as a Ford C-Max Energi. And that’s due to a lack of supply due to Honda not having sold any new ones here since the 2020 model year.

  7. I make enough money that I could afford to own a vehicle with terrible fuel economy.

    But I choose not to own a vehicle that will cause me to waste a bunch of money on fuel.

    So it’s a question of what’s the worst fuel economy that I’m willing to put up with.

    And for me, my benchmark is ‘nothing that is worse than my manual 2008 Honda Fit’… and I have been averaging 5.9L/100km or about 39 mpg (US gallons) over the last 5.5 years/160,000km I’ve driven it.

    And thus, my next vehicle will be a plug-in of some sort… either a good plug in hybrid or a BEV.

    (and I do have an outlet next to where I park to charge it overnight).

    Oh and for those who say ‘get another Fit’, the problem with that is finding one for a reasonable price that isn’t beat to shit. All of the ones in good condition without too much mileage in my area cost almost as much as a Prius Prime and the same as a Ford C-Max Energi. And that’s due to a lack of supply due to Honda not having sold any new ones here since the 2020 model year.

  8. Probably 6 or 8 mpg. I’m willing to put up with anything if the vehicle performs the purpose for which it was made.

    Big van moves people.

    Big truck moves stuff.

    Smart car moves me and my lunch to work.

    Etc.

  9. Probably 6 or 8 mpg. I’m willing to put up with anything if the vehicle performs the purpose for which it was made.

    Big van moves people.

    Big truck moves stuff.

    Smart car moves me and my lunch to work.

    Etc.

  10. My last few vehicles and current one get about 14-17mpg (depends on season) for my very hilly commute. That’s about as low as I want to go. But it’s not worth the expense to buy a more fuel efficient car (including a PHEV/EV) at this time just yet. I drive maybe 5-7K miles per year ony daily vehicle, so it would take a very long time to pay off the difference just in fuel costs.

  11. My last few vehicles and current one get about 14-17mpg (depends on season) for my very hilly commute. That’s about as low as I want to go. But it’s not worth the expense to buy a more fuel efficient car (including a PHEV/EV) at this time just yet. I drive maybe 5-7K miles per year ony daily vehicle, so it would take a very long time to pay off the difference just in fuel costs.

  12. Well, going by my piss poor calculations (I’ve done both miles driven/tank size) and miles driven/fuel used), I currently average about 12mpg in the city (it’s slowly going up because I’ve been paying attention to my RPM’s), and I think the best highway I’ve seen was like 24?
    So, really, outside of sports cars and big displacement motors, I could live with just about anything.

  13. Well, going by my piss poor calculations (I’ve done both miles driven/tank size) and miles driven/fuel used), I currently average about 12mpg in the city (it’s slowly going up because I’ve been paying attention to my RPM’s), and I think the best highway I’ve seen was like 24?
    So, really, outside of sports cars and big displacement motors, I could live with just about anything.

  14. It really depends on a lot of factors. I deal with my 2002 Silverado’s thirsty V8 for doing river stuff in the summer, but I wouldn’t deal with it for a daily.
    Honestly, if I had to, I could handle just about anything, but I’d probably drive less if I had something less fuel-efficient.

    I’ve been looking at something that would be larger and/or peppier than my Niro and I’ve sort of set 30 as a magic number. Luckily, the things I’m looking at almost invariably beat that (maybe I chose a number I thought would be easy). But stepping down from ~50 means I’m looking for something that seems better than the Niro in every way.

    My parents, who drive 6 hours each way to see my sister and her kids about once a month, have a Tundra and a 4Runner. They had a Camry before the 4Runner, and I couldn’t believe they’d take that efficiency hit. I’m convinced they have no minimum efficiency requirement.

  15. It really depends on a lot of factors. I deal with my 2002 Silverado’s thirsty V8 for doing river stuff in the summer, but I wouldn’t deal with it for a daily.
    Honestly, if I had to, I could handle just about anything, but I’d probably drive less if I had something less fuel-efficient.

    I’ve been looking at something that would be larger and/or peppier than my Niro and I’ve sort of set 30 as a magic number. Luckily, the things I’m looking at almost invariably beat that (maybe I chose a number I thought would be easy). But stepping down from ~50 means I’m looking for something that seems better than the Niro in every way.

    My parents, who drive 6 hours each way to see my sister and her kids about once a month, have a Tundra and a 4Runner. They had a Camry before the 4Runner, and I couldn’t believe they’d take that efficiency hit. I’m convinced they have no minimum efficiency requirement.

  16. My 2008 Infiniti G35 6MT got absolutely abysmal mileage. Over the 8 years I owned it, it averaged 17-18 mpg in mixed driving. It was tolerable because gas was cheaper and I didn’t drive all that much, but there’s no way I’d buy a car with mileage in the teens again.

  17. My 2008 Infiniti G35 6MT got absolutely abysmal mileage. Over the 8 years I owned it, it averaged 17-18 mpg in mixed driving. It was tolerable because gas was cheaper and I didn’t drive all that much, but there’s no way I’d buy a car with mileage in the teens again.

  18. I mean…I’m pretty tolerant of crappy fuel economy. My daily, a ‘96 K1500, gets about 13mpg. My tow pig ‘99 K2500 gets 10mpg. Not good, or anywhere close to it. But they’re cheap to own and simple to fix, so I can accept the fuel consumption.

    1. You drive two gmt400s?? My ’95 is reserved for truckly duties, and thats it. Same fuel economy as your 99, I’m assuming you also have a 454.

      1. Yep, I love them! They’re great trucks. I’m a farmer, so truck stuff and daily driver are synonymous. My 2500 actually only has a 350, but it was optioned with 4.10s. Great thing is, it gets 10mpg whether unloaded or pulling a 12000lb hay wagon.

  19. I mean…I’m pretty tolerant of crappy fuel economy. My daily, a ‘96 K1500, gets about 13mpg. My tow pig ‘99 K2500 gets 10mpg. Not good, or anywhere close to it. But they’re cheap to own and simple to fix, so I can accept the fuel consumption.

    1. You drive two gmt400s?? My ’95 is reserved for truckly duties, and thats it. Same fuel economy as your 99, I’m assuming you also have a 454.

      1. Yep, I love them! They’re great trucks. I’m a farmer, so truck stuff and daily driver are synonymous. My 2500 actually only has a 350, but it was optioned with 4.10s. Great thing is, it gets 10mpg whether unloaded or pulling a 12000lb hay wagon.

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