2016 Prius Gas Mileage Difference, Japan vs US

[HTSS_TR]

The new 2015 Toyota Prius supposed to have EPA combined ratings of 55 mpg, but the same car is rated 94 mpg in Japan. I think the EPA city is probably around 60 mpg and highway is about 50 mpg.

This is a huge difference between the two ratings. 10-20% difference is understandable, but 70%(94/55) is hard to believe.

http://www.greencarreports.com/news/1100...system-released

 

[Shannow]

Different test regimes ???

 

[OneEyeJack]

Is a Japanese gallon different in volume?

 

[turtlevette]

If the emperor says its 94mpg, its 94mpg.

 

[HTSS_TR]

Different test procedures may yield different gas mileage up to 10-20%, may be 30%. But 70% is so much, unless Japanese do the hypermile test at low speed and EPA do normal test at higher speed.

 

[HTSS_TR]

Originally Posted By: OneEyeJack
Is a Japanese gallon different in volume?

The actual report is metric, 40 km/liter which is 94 MPG.

 

[JamesBond]

Japan uses the metric mile which is considerably shorter than the U.S. mile.

 

[Brybo86]

Haha, Thanks for the bedtime laugh

 

[Timo325]

^^^ THIS

 

[CELICA_XX]

The Prius is good, but you're never going to achieve 94 US mpg in normal everyday driving.

Unless your commute is downhill both ways !!

I'm happy if I get 50 mpg with normal driving

 

[splinter]

Perhaps Toyota delegated domestic market ECU programming to VW engineers?

 

[DoubleWasp]

It's wrong. Case closed.

 

[bigjl]

I just read the linked article and it doesn't actually give the US ratings for the 2016 Prius.

It merely says they are promised to be over 55mpg.

The current Prius is rated at just over 70mpg in official EU tests. And going by reports of those people using them for Private Hire work in London most drivers are hitting 60mpg with a few hitting 65mpg.

Which is much closer to the official figures than most Diesels.

My Jag would regularly average 32mpg but I think the official figure was 37mpg off the top of my head for that usage.

The 116D had official figures not far off 70mpg and that never really managed to crack 50mpg.

 

[NateDN10]

Are they the same exact car? I know that some manufacturers offer smaller engines in other countries, for example.

 

[KrisZ]

Also, at leas for the Euro fuel economy tests, manufacturers are oftentimes permitted to remove exterior mirrors, tape up all the gaps between different panels and alter other aerodynamically important aspects that are different in the final production model.

In other words, a government controlled test can literally be anything they want it to be.

 

[expat]

Perhaps the weight of the occupants comes into play

 

[hattaresguy]

What is the difference between the two tests? Off hand it seems that Japan's testing is wildly optimistic compared to ours.

Maybe they are doing what the Italians are doing with their exotics and MPG's...lie.



Hey Tony what does your Pagani get for MPG? "ehh around 30"; eh we print window sticker for 30! That's a nice car.