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Message
Hybrids Less Efficient Than Gas Models
Posted on 2/3/26 at 5:53 pm
Posted on 2/3/26 at 5:53 pm
Most people are not plugging them in...
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Why Plug-In Hybrids Fall Short In Practice
Plug-in hybrids are built to handle short trips on electricity before switching to gasoline once the battery runs out. When drivers regularly charge them, that setup is meant to cut fuel use.
"What we also know today with plug-in hybrids is that most people don't plug them in," Barra said at the Detroit conference, adding that plug-in hybrids are not always being used as intended.
Real-world data in 2025 show that plug-in hybrids often deliver weaker fuel efficiency once their electric range is depleted, according to European clean-transport advocacy group Transport & Environment.
The organization's analysis of emissions data found that plug-in hybrids emit just about 19% less carbon dioxide than petrol and diesel cars in everyday use — far less than advertised — and that real-world carbon output is much higher than official lab test figures suggest.
---
Why Plug-In Hybrids Fall Short In Practice
Plug-in hybrids are built to handle short trips on electricity before switching to gasoline once the battery runs out. When drivers regularly charge them, that setup is meant to cut fuel use.
"What we also know today with plug-in hybrids is that most people don't plug them in," Barra said at the Detroit conference, adding that plug-in hybrids are not always being used as intended.
Real-world data in 2025 show that plug-in hybrids often deliver weaker fuel efficiency once their electric range is depleted, according to European clean-transport advocacy group Transport & Environment.
The organization's analysis of emissions data found that plug-in hybrids emit just about 19% less carbon dioxide than petrol and diesel cars in everyday use — far less than advertised — and that real-world carbon output is much higher than official lab test figures suggest.
Posted on 2/3/26 at 6:18 pm to ItzMe1972
Don't Prius' self recharge?? Other hybrids not doing that anymore?
Posted on 2/3/26 at 6:20 pm to HagaDaga
Prius butt plug into each other.
Posted on 2/3/26 at 6:22 pm to HagaDaga
Don't Prius' self recharge?? Other hybrids not doing that anymore?
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I'm sure they do, but drops efficiency below gas powered as I read it.
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I'm sure they do, but drops efficiency below gas powered as I read it.
Posted on 2/3/26 at 6:27 pm to ItzMe1972
My Lexus hybrid self charges with no need to plug in, but it switches from electric to gas often depending on speed and acceleration.
Posted on 2/3/26 at 6:28 pm to ItzMe1972
Had a vehicle provided by the company that I worked for and it was a hybrid. No plug in but used deceleration generator to recharge the battery. It would use battery until it needed the ICE. It got about 2 miles per gallon better than the strait ICE version. It worked ok and had it for three years(company policy to replace them after 3 years). It brought less than half the value of the strait ICE version. Battery replacement was so high that no one wanted it.
Posted on 2/3/26 at 6:40 pm to HagaDaga
quote:
Don't Prius' self recharge?? Other hybrids not doing that anymore?
Yes, traditional hybrids work as you stated. That's how they get 50 mpg.
Plug in hybrids are the ones failing.
Posted on 2/3/26 at 6:54 pm to Bestbank Tiger
Last time I looked the Plug In Hybrid Prius was about $5000 more than regular hybrid. Can’t see how it was worth that much extra.
Posted on 2/3/26 at 7:03 pm to ItzMe1972
quote:
Most people are not plugging them in...
Every hybrid I looked at compared to the gas-only models basically had the same city MPG as the highway MPG of the non-hybrid, but 1 - 2 less highway MPG. Plug-in hybrid is probably good if you only have really short trips regularly, know some areas where the neighborhood is built with grocery store, restaurants, etc. Having to go through the extra step to plug in a charging cable would be a pain, same with having to remove that cable too. I keep my truck plugged in on a battery tender but it goes weeks without being driven, I'm sure there are those keeping their vehicles on block heaters and similar, just extra steps that sometimes get annoying IMO.
This post was edited on 2/3/26 at 7:05 pm
Posted on 2/3/26 at 7:21 pm to HagaDaga
They recharge on breaking, but they use the power generated by gas (or in a pure electric case, only the electric) to do so.
No energy transfer is perfect, the energy transferred to recharge is less than that burned by the gasoline (60-70% in ideal situations).
It works because gasoline has so much energy.
For direct charge from the gas engine, it is never more efficient to burn gas just to charge the battery than it is to use that gas to drive the wheels directly.
No energy transfer is perfect, the energy transferred to recharge is less than that burned by the gasoline (60-70% in ideal situations).
It works because gasoline has so much energy.
For direct charge from the gas engine, it is never more efficient to burn gas just to charge the battery than it is to use that gas to drive the wheels directly.
quote:
Reports from drivers using "Charge Mode" in plug-in hybrids often show a 20% to 30% drop in fuel economy while the system is actively forcing a recharge.
This post was edited on 2/3/26 at 7:26 pm
Posted on 2/3/26 at 7:24 pm to Clames
I'm thinking the plug-in ones might be good for seniors that don't drive much out of their neighborhood.
We are on our 3rd hybrid: 2 Priuses and one Hyundai Tucson.
My husband loved the Priuses for his long commute. He'd make it a game to see how long he could go without charging it. He got great gas mileage.
When he retired, he wanted an off-road vehicle and opted for a Subaru.
After we moved to Arkansas, I wanted to get rid of my Lexus Sedan and get an AWD SUV. There are just too many dirt roads in NW Arkansas. I went with the Hybrid version of the Tucson because it had more power than the gas and it is much quieter than the gas models. It gets a little better gas mileage than the gas, but not enough to make up the difference in price. However the power and quiet difference really made it worth it to me.
We are on our 3rd hybrid: 2 Priuses and one Hyundai Tucson.
My husband loved the Priuses for his long commute. He'd make it a game to see how long he could go without charging it. He got great gas mileage.
When he retired, he wanted an off-road vehicle and opted for a Subaru.
After we moved to Arkansas, I wanted to get rid of my Lexus Sedan and get an AWD SUV. There are just too many dirt roads in NW Arkansas. I went with the Hybrid version of the Tucson because it had more power than the gas and it is much quieter than the gas models. It gets a little better gas mileage than the gas, but not enough to make up the difference in price. However the power and quiet difference really made it worth it to me.
Posted on 2/3/26 at 7:39 pm to ItzMe1972
Some people here don't know the difference between a plug in hybrid and a regular hybrid. They both have batteries that recharge on deceleration and braking, but the plug in versions have a larger output battery that can provide an all electric range.
They both have their place and are good options depending on your drive. My wife has a plug in hybrid 3row SUV and hasn't filled the tank in almost a month, but she plugs it in every night. One of my cars is a regular hybrid full sized sedan that I bought new 12 years ago. It has 250k miles and still gets 43 mpg.
The non hybrid version of the car got 26 mpg mixed, so a quick estimate is that I have saved about $11,000 in fuel costs. The key was that the car was only $1500 more than the non hybrid version when I bought it.
They both have their place and are good options depending on your drive. My wife has a plug in hybrid 3row SUV and hasn't filled the tank in almost a month, but she plugs it in every night. One of my cars is a regular hybrid full sized sedan that I bought new 12 years ago. It has 250k miles and still gets 43 mpg.
The non hybrid version of the car got 26 mpg mixed, so a quick estimate is that I have saved about $11,000 in fuel costs. The key was that the car was only $1500 more than the non hybrid version when I bought it.
Posted on 2/3/26 at 7:50 pm to ItzMe1972
Posted on 2/3/26 at 7:56 pm to ItzMe1972
Aren't there garage floor mats you can park on that will inductivly charge car batteries wirelessly?
No plugging in necessary.
No plugging in necessary.
Posted on 2/3/26 at 8:04 pm to HagaDaga
I think they are talking about plug in hybrids.
Posted on 2/3/26 at 8:09 pm to ItzMe1972
quote:
Don't Prius' self recharge?? Other hybrids not doing that anymore?
--
I'm sure they do, but drops efficiency below gas powered as I read it.
Wait. Let’s get this straight. There are three ways to charge a hybrid. One is that when you brake it uses the electric motor as a generator to charge the battery. The generator torque slows the car relieving the duty on the brakes and capturing efficiency very elegantly. However, this doesn’t amount to a whole lot of charging except when you’re in stop and go traffic.
The second type is that the engine can turn the generator and charge the battery. I doubt this means is being used because it would be terribly inefficient and expensive. The third type is to plug the car into an outlet. And only some hybrids have that capability. These are the hybrids they are talking about here. In these hybrids you can charge your car with your home electricity and get maybe 25 miles of driving before you start using your fuel. But you have to do this every night to get the benefit. If you don’t you still get some benefit from the braking effect, but you lose a lot of that efficiency by having to lug around all of the weight of the electric motor and appurtenances.
If you have that kind of hybrid, you are not charging it overnight, and you drive a lot of highway miles, then that is less efficient than a similar ICE vehicle.
This post was edited on 2/3/26 at 8:10 pm
Posted on 2/3/26 at 8:13 pm to ItzMe1972
I had a Lincoln Aviator hybrid. Installed a 220v outlet in my garage and plugged it in every night. First 50 miles, I could drive on battery alone. Normal commute to work every day, I used zero gas. Wish I still had it, but Carvana offered me more than I paid for it, even after driving it for a year. Looking at the new Nautilus now.
Posted on 2/3/26 at 8:25 pm to Warboo
[img]Had a vehicle provided by the company that I worked for and it was a hybrid. No plug in but used deceleration generator to recharge the battery. It would use battery until it needed the ICE. It got about 2 miles per gallon better than the strait ICE version. It worked ok and had it for three years(company policy to replace them after 3 years). It brought less than half the value of the strait ICE version. Battery replacement was so high that no one wanted it.[/img]
Friends had 2 Hybrids. Both ended up with battery problems and their value was zero.
Friends had 2 Hybrids. Both ended up with battery problems and their value was zero.
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