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Isaac Zachary's Recent Activity

  1. Isaac Zachary replied to the thread Gen 6 Prius engine will be a “game changer,” achieve a 53% thermal efficiency.

    Well, let me put it this way. I drive a 14mpg car because it was free. I drive it less than 5 miles a day. So less than two gallons, or...

    Jul 2, 2024 at 9:53 PM

  2. Isaac Zachary liked Gokhan's post in the thread Gen 6 Prius engine will be a “game changer,” achieve a 53% thermal efficiency.

    Soon?? 75 mpg is what I get regularly in my blue 2021 Prius Prime Limited, and I am unhappy with anything less—even 74 mpg. ;)

    Jul 2, 2024 at 9:45 PM

  3. Isaac Zachary liked vvillovv's post in the thread Gen 6 Prius engine will be a “game changer,” achieve a 53% thermal efficiency.

    Thats gotta hurt, especially if you've got a 20 gal tank or larger. Not fer nothing, but - is the early 80's I was hurtin pretty bad in...

    Jul 2, 2024 at 6:03 PM

  4. Isaac Zachary replied to the thread Gen 6 Prius engine will be a “game changer,” achieve a 53% thermal efficiency.

    Well fine, just be logical. :D And keep it up! (y) I hope that 75mpg does become a reality soon. That would be awesome. I've been...

    Jul 2, 2024 at 5:05 PM

  5. Isaac Zachary liked Trollbait's post in the thread Gen 6 Prius engine will be a “game changer,” achieve a 53% thermal efficiency.

    Ran into the same. I recalled the adjustment might have started a year or so after the start of the requirement, but left it off the...

    Jul 2, 2024 at 5:03 PM

  6. Isaac Zachary liked Gokhan's post in the thread Gen 6 Prius engine will be a “game changer,” achieve a 53% thermal efficiency.

    Yes, but from my experience, both the updated old-methodology numbers and the new-methodology numbers are right on the money with the...

    Jul 2, 2024 at 8:02 AM

  7. Isaac Zachary replied to the thread Gen 6 Prius engine will be a “game changer,” achieve a 53% thermal efficiency.

    Now that's what I call context! Still: Efficiency under what circumstances (average, maximum, minimum, etc.)? What is the energy being...

    Jul 2, 2024 at 12:30 AM

  8. Isaac Zachary replied to the thread Gen 6 Prius engine will be a “game changer,” achieve a 53% thermal efficiency.

    Without context it does. The fuel efficiency in my 1985 VW Golf diesel is 100% efficient. I'm serious, it is. Some 25% might get to the...

    Jul 1, 2024 at 11:38 PM

  9. Isaac Zachary replied to the thread Gen 6 Prius engine will be a “game changer,” achieve a 53% thermal efficiency.

    Again, the point never was that the Metro was the greatest or worst car in history. All I wanted to say is that posting an efficiency...

    Jul 1, 2024 at 7:53 PM

  10. Isaac Zachary liked Gokhan's post in the thread Gen 6 Prius engine will be a “game changer,” achieve a 53% thermal efficiency.

    No, but all the EPA mpg numbers obtained by the previous EPA test methodology have been adjusted for the new methodology. So, if you see...

    Jul 1, 2024 at 6:33 PM

  11. Isaac Zachary liked Trollbait's post in the thread Gen 6 Prius engine will be a “game changer,” achieve a 53% thermal efficiency.

    The EPA city test cycle is nothing like what today's drivers consider highway driving. The max speed is 60mph, but the average is...

    Jul 1, 2024 at 6:32 PM

  12. Isaac Zachary liked hill's post in the thread Gen 6 Prius engine will be a “game changer,” achieve a 53% thermal efficiency.

    Back during the time frame of Geo's - the EPA test was much much easier to get high ratings on. That's why the Gen 2 Prius could...

    Jul 1, 2024 at 6:32 PM

  13. Isaac Zachary replied to the thread Gen 6 Prius engine will be a “game changer,” achieve a 53% thermal efficiency.

    The overall drag on the Prius is still less, despite being bigger. Weight isn't as much of a factor as one would think, especially for...

    Jun 30, 2024 at 11:50 PM

  14. Isaac Zachary replied to the thread Next Gen Toyota Harrier (Venza).

    Then they'll go back to big round ones, then square, then triangle, then some other silly shape. Why? Because all cars are becoming the...

    Jun 30, 2024 at 10:36 PM

  15. Isaac Zachary replied to the thread Gen 6 Prius engine will be a “game changer,” achieve a 53% thermal efficiency.

    Yes, yes and yes. But that wasn't the point. A Geo Metro has around CdA of 6.24 (the 2-door Xfi may be different) whereas the 2nd gen...

    Jun 30, 2024 at 10:23 PM
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