Jerry's Evolving Thoughts on "new-to-me" Prime Premium

Discussion in 'Prime Main Forum (2017-2022)' started by jerrymildred, Mar 12, 2019.

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  1. Sarge

    Sarge Senior Member

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    Booo... you ruined it, we were supposed to take guesses on how to pronounce “the soo”. ;)

    Anyway, I am currently in my longest streak of not putting gas in my PiP. I last fueled up March 3rd, and I have 3 pips of gas remaining. I guess it helps I was out of the country down in Jerry’s neighbourhood for March break week with the family (long road trip in a rental ‘19 Sienna - nice ride!), and have been working a lot from home this month. (y) I normally drive a lot and fill up about every 5-6 days (only 12% EV in my PiP :(), so this is exciting me for me. :D But I digress...
     
    #101 Sarge, Mar 25, 2019
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  2. kevin.c

    kevin.c Member

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    Wow, any ideas on why the prime is so much more efficient? I thought it was slightly heavier than the plug in Prius.
     
    #102 kevin.c, Mar 26, 2019
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  3. jerrymildred

    jerrymildred Senior Member

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    It's just a more efficient design. Somehow, it works out to the Prime getting 133 MPGe vs the PiP "only getting 95.
    Looks here for a quick look

    Or here for a deep dive.
     
    #103 jerrymildred, Mar 26, 2019
    Last edited: Mar 26, 2019
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  4. Mendel Leisk

    Mendel Leisk MMX GEN III

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    Bigger battery, different programing.
     
    #104 Mendel Leisk, Mar 26, 2019
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  5. Prodigyplace

    Prodigyplace 2025 Camry XLE FWD

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    When in HV mode, a more efficient engine too :D
     
    #105 Prodigyplace, Mar 26, 2019
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  6. Mendel Leisk

    Mendel Leisk MMX GEN III

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    Different engine than a regular 4th gen?
     
    #106 Mendel Leisk, Mar 26, 2019
  7. jerrymildred

    jerrymildred Senior Member

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    The eCVT is slightly different between Prius and Prime. Not sure about the engine. In the Prime, there's a one-way clutch that lets MG1 help power the car in concert with MG2 when in EV. It adds 30 HP to EV mode. I can really feel it compared to the PiP. I didn't try driving in EV when I test drove the 2016 Prius. Anyway, I find that the engine likes to shut off a lot at steady speeds at least up to 60 mph and it stays off for a long time. I didn't notice that in the Prius I drove. Maybe some of you Gen 4 owners can chime in on that.

    In two weeks of ownership, I've only driven about 50 miles in HV mode, so I don't have much of a feel for that yet. I need to get some longer trips in. :D I"ll probably end up deliberately driving in HV mode some in the next few weeks to make enough room to add more than a couple gallons when I top off the tank for our trip to AZ. I like to start trips like that with a full tank so I know what miles are commuting and what are traveling. But it's so stinkin' fun to drive in EV, much of which is free, that it's going to be like making myself swallow a live frog to put it in HV on purpose. :ROFLMAO: Once I get more HV miles under my belt, I can try to describe it better. But with so little experience driving the regular Prius Gen 4, it's hard to make that comparison. I can, compare it to the PiP, though once I get more experience.
     
    #107 jerrymildred, Mar 26, 2019
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  8. Prodigyplace

    Prodigyplace 2025 Camry XLE FWD

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    4th Gen engine different than 3rd Gen PiP
     
    #108 Prodigyplace, Mar 26, 2019
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  9. Prodigyplace

    Prodigyplace 2025 Camry XLE FWD

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    Same as 4th Gen Engine is the same too, but more efficient than the 3rd Gen PiP
     
    #109 Prodigyplace, Mar 26, 2019
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  10. Mendel Leisk

    Mendel Leisk MMX GEN III

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    Ah, didn't read closely, sorry.
     
    #110 Mendel Leisk, Mar 26, 2019
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  11. pineprius

    pineprius 15th Hole #4

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    Nice work Jerry. I too had a PIP with a full size wheel and spare which I swapped into my Prime. Without D rings in the Prime, and not needing much trunk space, I just used the PIP strap to the RR seat latch and snugged it up. Yes, all options have sacrifices, but it works for me at no cost. Usually the tire is neatly upside down, with cover, but reversed for this very technical photo.
     

    Attached Files:

    #111 pineprius, Mar 26, 2019
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  12. jerrymildred

    jerrymildred Senior Member

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    Pretty clever!! I didn't think of that. How is the strap holding up? I assume you're not lowering and raising the seat back every day, but I'd think there is still a possibility of some chafing going on. Interestingly, this one came with a strap just like the one in the PiP.

    Apparently it's much more efficient than the PiP engine. Today, I did a dedicated HV drive back home from a meeting. I reset the trip meter when I started. This route is possibly the worst possible combination of high speed start and stop there is. This is with the A/C on Eco and driver priority set to 77F.
    IMG_0190.jpg

    I finally drove enough HV miles to be able to see a little gap between the full line and the yellow bar. Trip B is the miles on this tank.
    IMG_0191.jpg
     
    #112 jerrymildred, Mar 26, 2019
    Last edited: Mar 26, 2019
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  13. pineprius

    pineprius 15th Hole #4

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    Strap is like new, no not moving the seatback much. No chafing because the latch in the seatback is further "up" on the catch than the taut strap. Mine didn't come with the strap and so I kept the PIP strap which I like. However if I ever need to strap down some 4 ton thing, I'm going to order your custom D ring, it looked pretty beefy.
     
    #113 pineprius, Mar 27, 2019
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  14. jerrymildred

    jerrymildred Senior Member

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    I tend to over-engineer. Being a self-taught welder, I prefer to err on the side of safety. :)

    I should make one for the other side in case I need two.
     
    #114 jerrymildred, Mar 27, 2019
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  15. bruceha_2000

    bruceha_2000 Senior Member

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    Why? Just put in the 1 gallon you need on the way out of town. No sense in burning gas just so you can put in 3 gallons instead of 1.

    77°?? Oh yeah, Florida, you are bringing the temp in the car DOWN!

    I have a curiosity. Just over 1K miles on the car in a month. ODO and Trip B are the same but the MPG is not. MPG on ODO is about 3 MPG higher than that on Trip B. How could this be? Trip A is current tank. I usually use Trip B for miles since last oil change.
     
    #115 bruceha_2000, Mar 27, 2019
  16. jerrymildred

    jerrymildred Senior Member

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    Because I want to. And because, until I did that last HV run, it would have been under 1 gallon and would stay that way for another month or two unless I deliberately invoke the ICE.
    And because I'm trying to get some commuting benchmarks for HV mode just so I know how efficient this engine is when used under my conditions.

    That sure seems weird. I don't know why the MPG wouldn't be the same if the miles are the same. Mine both say 199.9 MPG because, for some reason, they put that limit on it. If it can read 199.9, why can't it read 999.9? It's not like they ran out of digits.
     
    #116 jerrymildred, Mar 27, 2019
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  17. Prodigyplace

    Prodigyplace 2025 Camry XLE FWD

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    I believe your smartphone app can show more.

    [​IMG]


    Check out this thread.
    We like sheep... on the ECO Dashboard | PriusChat
     
    #117 Prodigyplace, Mar 27, 2019
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  18. jerrymildred

    jerrymildred Senior Member

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    #118 jerrymildred, Mar 27, 2019
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  19. Tideland Prius

    Tideland Prius Moderator of the North
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    Just switch to metric, read the L/100km and convert back to mpg.

    1L/100km ~ 235 mpg
    2L/100km ~117 mpg
    3L/100km ~ 78 mpg
    4L/100km ~ 59 mpg
     
    #119 Tideland Prius, Mar 27, 2019
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  20. jerrymildred

    jerrymildred Senior Member

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    I'll try to remember to do that this weekend. Friday will be my three-week mark.
     
    #120 jerrymildred, Mar 27, 2019
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