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How much of a hit can I expect to get from ultra high performance summer tires?

Discussion in 'Gen 2 Prius Fuel Economy' started by sabbosab3354, Jul 10, 2011.

  1. Hal W

    Hal W New Member

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    That is the idea of the coolant being stored in the thermos, is it not? Hal
     
  2. F8L

    F8L Protecting Habitat & AG Lands

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    It is but I have read that the car still goes through its warming stages regardless. I could be wrong on this though.
     
  3. aginzu

    aginzu New Member

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  4. cwerdna

    cwerdna Senior Member

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    Yeah. It still seems to, although maybe not for the full 56 seconds after ICE ignition. I think the engine already being warm and the thermos helps.

    Today, IIRC, FWT was above 180 F, I had to stop and power down. I came back out a few minutes later to power back up and go. FWT was still up there but I saw it going thru stage 1a (negative IGN values).
     
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  5. Hal W

    Hal W New Member

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    Oh, that is interesting! So I guess there is a bit of a hit.
     
  6. F8L

    F8L Protecting Habitat & AG Lands

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    It's probably a minor hit but do it enough times and it could add up to a big hit. It's worth checking out. :)
     
  7. sabbosab3354

    sabbosab3354 Junior Member

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    Well, it looks like I'm not getting much of a hit from the tires as I thought. When I started making my commute, and altering my driving style to better take advantage if the drivetrain, MPG jumped into the 50's.

    Thanks for all of the help :)
     

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  8. F8L

    F8L Protecting Habitat & AG Lands

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    Now imagine what you would have got with LRR tires of the appropriate size. :)
     
  9. F8L

    F8L Protecting Habitat & AG Lands

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    Here is what 101Tires.com shows for the size difference.
     

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