58 MPG by 2032

[deezler]

Data is an inconvenient thing. You can easily see that the actual CAFE performance averages are all up 30% - 50% over the last 20 years. This is data, this is fact.

View attachment 823195

https://www.nhtsa.gov/staticfiles/rulemaking/pdf/cafe/Performance-summary-report-12152014-v2.pdf

Lol, so smug. You obviously don't realize how complex the CAFE calculations are. Its a system to be gamed by the manufacturers. Edit: sorry, I don't need to be this rude. Having a monday here at work, haha.

Here is the real world performance of mpg in the USA. Yes, it is ticking back up more recently with improved transmissions, reduced rolling losses, better aerodynamics, and increasing hybridization. But the truth is that the combustion efficiency inside the internal combustion engine is not improving much at all.

 

[ultrarunner]

The plant manager was named Don Dees, and he was 100% American.

When mom ordered her one and only new car it was a Toyota Corolla… 2001 model S with factory sunroof.

I wrote a letter to the president of Toyota in Japan asking to see her car being made and received a response with build date inviting mom and me to come to the factory as it was being made.

A person identified as plant manager invited us to the company cafeteria and sat down with us for a few minutes saying he was from Japan and he gave mom a Toyota hat signed by himself and others…

We later received a copy of the company newsletter with a very nice write up of our visit…

Maybe he was the Toyota side of the joint venture?

Super car and many a time over 40 mpg.

The undercarriage is signed by many of the line workers with a sharpie... a true signature edition.

I couldn't believe the red carpet treatment and we witnessed the first start at the end of the line...

 

[WinterDeere]

Lol, so smug. You obviously don't realize how complex the CAFE calculations are. Its a system to be gamed by the manufacturers. Edit: sorry, I don't need to be this rude. Having a monday here at work, haha.

Here is the real world performance of mpg in the USA. Yes, it is ticking back up more recently with improved transmissions, reduced rolling losses, better aerodynamics, and increasing hybridization. But the truth is that the combustion efficiency inside the internal combustion engine is not improving much at all.

View attachment 823203

Yeah, sorry that sounded smug. But what's your source for this data? Mine came from NHTSA (link provided). Clearly they're using a different basis for calculating average MPG, assuming both are honest graphs.

 

[Torvy]

Yeah, sorry that sounded smug. But what's your source for this data? Mine came from NHTSA (link provided). Clearly they're using a different basis for calculating average MPG, assuming both are honest graphs.

Here's part of the problem...excerpted from the report that goes with your graph.

This is just effectively an average of the mpg of those broad classes as reported by the mfg. The numbers will get better if the market (no necessarily sell) smaller, more fuel efficient vehicles. Want to sell more Tundras? Put some additional Prius models in the fleet.

The other data is actual engine performance.

So, they way I am seeing the data, yours is easy to manipulate just by selling more 4 cylinder or hybrid cars. Deezler is looking at the engines themselves and comparing if a given 4 cylinder get better mpg today than it did X years ago.

 

[Grumpycat]

I said "20 years", not 60.

I said 1966 and you changed to fit your narrative.

But I should have more artfully articulated that actually, a major reason that overall american vehicle mpg is flat for decades now is because the vehicles themselves have gotten bigger and heavier, accounting for our consumer demand and safety requirements.

So you admit vehicles are getting more efficient in spite of emissions regulations. Not a question.

My 2018 4x4 F-150 is much bigger, faster, capable, and nicer than the 2001 Sonoma I had. MPG is better in the F-150. No doubt the F-150 meets more stringent emissions standards.

Edit: So not only is my F-150 more economical, it is much more efficient doing more work with less fuel.

 

[Grumpycat]

Lol, so smug. You obviously don't realize how complex the CAFE calculations are. Its a system to be gamed by the manufacturers. Edit: sorry, I don't need to be this rude. Having a monday here at work, haha.

Here is the real world performance of mpg in the USA. Yes, it is ticking back up more recently with improved transmissions, reduced rolling losses, better aerodynamics, and increasing hybridization. But the truth is that the combustion efficiency inside the internal combustion engine is not improving much at all.

View attachment 823203

Come back when you learn the difference between "fuel economy" and "fuel efficiency".

 

[Williy]

1have learned that the ones with the VW bug drove them
until they quit running. Also you list 1966 VW and 2016
Suburu. I had a 1966 Dodge 273 cu in auto and running wide
open going from Great lakes ILL to Fond du Lac WI of
course I had to slow down going threw the boder but I was
getting 19 mpg. 126 miles took me hour and 25 minutes
VW had a diesel test vehicle that was getting 24 mpg at
220 mpg they also have it looked like a small enclosed
motor cycle and it they said got 160 miles on one gallon
of diesel it was one cyclender
I tried to find this on the internet but all I get is the VW diesel
scandal

willy.

 

[deezler]

Come back when you learn the difference between "fuel economy" and "fuel efficiency".

Oh please, do enlighten us.

I measure indicated mean effective pressure (IMEP) and brake thermal efficiency (BTE) to evaluate the performance of our powertrain components in a wide variety of internal combustion engines, maybe you want to learn about that?

Of course fuel economy means MPG. But "efficiency" is a looser term that depends on your specific context.

I already explained why overall vehicle mpg is increasing above, but I'll copy and paste it again for you: "improved transmissions, reduced rolling losses, better aerodynamics, and increasing hybridization".

My point was that tightening emissions regulations continue to prevent us from achieving better combustion efficiency in-cylinder. Not sure what is confusing to you about that, but let's be done with this.

 

[Gator6x4]

Still odd the Utility sends out thank you messages when consumption drops and pushes rebates for a multitude of energy saving appliances and measures.


If my business is selling electricity why would I spend money and provide incentives to customers for buying less of what I have to offer?

So that as their customer base residential and commerical increases they can continue providing a high level of service without having to increase generating capacity?

 

[WinterDeere]

If my business is selling electricity why would I spend money and provide incentives to customers for buying less of what I have to offer?

Since a few people have asked the same, it's worth clearing this up. Electric utilities receive state and federal money in rebates, and are both incentivized and required to support this advertising, promoting energy usage reduction, or at least reducing its growth. As you know, their rate changes must be approved by state and/or federal government, and requirements for them to host these campaigns can be attached to the approval of such rate hikes.