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Old 05-05-2019, 10:36 PM   #173 (permalink)
mpg_numbers_guy
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Join Date: Feb 2018
Location: VA
Posts: 1,363

Toby - '13 Toyota Prius C
90 day: 64.01 mpg (US)

Daz - '15 Mazda 3 iTouring w/ Tech Package
90 day: 38.2 mpg (US)
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I love summer weather! Okay, well not summer weather yet up north, but definitely warm enough to get good mpgs.

Return trip from college, new tank record 85.7 MPG over 705.0 miles:
- Day 1: 80.8 MPG through the mountains and hills in the Virginias and southern Ohio
- Day 2: 92.5 MPG on mostly flat highway through Ohio, Indiana, and Michigan (trip record!!)

I hadn't driven the Insight since taking it back down to college after spring break, so this warm weather was a plus.

Mom followed in the Prius and got 57.8 MPG the first day and 62.5 MPG the second day. She's officially better than me at hypermiling the Prius. This busts my theory that my Civic with ecomods was more fuel efficient than a Prius. With ecomods and hypermiling I could get in the 50s on the highway, and did reach 60 MPG once with a tailwind, but the Prius completely smoked that today by a good 5%, at least.

Had problems with my 12V battery staying charged after disabling the IMA, so I followed the advice of a few Insight Central experts and cut the WHITE/GREEN wire on the DC-DC connector to prevent it from going into low power mode and only charging the 12V to 12.5-12.9V. Now the 12V stays happily charged from 13.9-14.3 volts.

Now that I'm back home, summer plans! Have a decently sized list of mods I'm hoping to get done this summer, including completely removing the IMA, upgrading speakers, and recarpeting the floor post-IMA delete. We will see how much I get done!
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2013 Toyota Prius C 2 (my car)


2015 Mazda 3 iTouring Hatchback w/ Tech Package (wife's car)
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