MPG boost

Discussion in 'Newbie Forum' started by Noobprius, Jan 16, 2017.

  1. bisco

    bisco cookie crumbler

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    what typical speed on the highway?

    i must say, the tyres might be an issue. try pumping them up to 42f/40r just for fun.
     
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  2. Noobprius

    Noobprius Junior Member

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    Anywhere from 55-75mph, depending on if I am on the interstate

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  3. Noobprius

    Noobprius Junior Member

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    Update: this was my MFD display after reseting it. No other changes have been done to my car. 1484672754540.jpg
     
  4. xpcman

    xpcman Senior Member

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    If you had a oil change and they overfilled it (like adding 5 quarts) it can cause low MPG.
     
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  5. DonDNH

    DonDNH Senior Member

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    In your first picture of the 5-minute interval mileage display, it shows 10 minutes with just over 50MPG. The car is capable of better mileage. I suspect the your driving style, short trips, winter weather and less than optimal tires are the primary causes of your getting worse mileage.
     
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  6. Noobprius

    Noobprius Junior Member

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    @DonDNH- that was not my car in the first picture, but I would have to agree with you. I tend to be a bit heavy on the throttle (thanks to my old V8 monster of a motor that was in my truck)

    @xpcman- I have no idea how much they exactly added, but the mechanic has a prius of his own with anywhere from 300k-350k miles on it, so I'm guessing he put in the right amount...idk with the oil additive that they put in though...

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  7. Mendel Leisk

    Mendel Leisk Sand Pounder

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    I think overfill is more prevalent when the spec'd. amount is just a bit more than some round quart or liter value. Our Prius is 4.2 liter (with filter change). Previous Civic Hybrid was 3.2 liter. With the latter I was still thinking to "do the right thing" during warranty, dutifully took the car to dealership for oil changes. And they regularly slammed in 4 liters.

    I've done all the oil changes on our Prius myself, but went on a tour of the service department once (new owner's night) and noted they use graduated pitchers for oil changes, pre-filled carefully to spec'd. amounts with (bulk) Toyota oil. That I think is progress: accurate fill, and stops the avalanche of empty motor oil bottles.
     
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  8. bisco

    bisco cookie crumbler

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    there's a huge difference between mpg's at 55 and 75. i'm starting to think there's nothing more wrong with your car than age and tyres.
     
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  9. Noobprius

    Noobprius Junior Member

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    Well, the motor is shot, but probably. Hopefully will get new tires in a couple months. Thank you all for the help!

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