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Old 01-12-2019, 05:39 PM   #140 (permalink)
mpg_numbers_guy
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Join Date: Feb 2018
Location: VA
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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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A couple updates!

Arrived back at college today after driving all 711 miles on the Insight. It's official: I don't need cruise control. It's also official...I don't need, or want, the hybrid battery!

The hybrid battery is currently disabled, and when I return for spring break, I will permanently bypass it and sell the battery. The battery stays at 80%+ charge on normal driving, but every mountain drains the battery by 50%. It also seems to have a desire to background charge (no bars showing however) until the battery is at least 95%, which was KILLING MY MILEAGE. Like, at one point on the interstate, 70 MPG steady slowed down from 55 MPH to 40 MPH with the IMA, when 55 MPH was generally 85-95 MPG w/ IMA disabled.

Dreamsight averaged 82.9 MPG on the highway, and 73.7 MPG through the mountain passes. Being able to coast down the mountains without having to regen equally made up for downshifting more on the mountain passes. Also had some fun driving through some back roads to get to the university - got almost 90 MPG for that 20 mile up-and-down-twist-and-turn road, and it was fun due to how light the Insight was, and I didn't have to worry about some stupid battery!

Plus, the extra storage space....all my luggage fit fine with the battery but I wouldn't mind the extra storage space.

The entire trip was 78.2 MPG over 710.8 miles. Made it on one tank! Temps varied between 25 F and 45 F, with light snow for a bit of the trip,,but roads were good.



Also, I will not be recording fuel economy for my car unless I happen to take a longer trip. Most of my trips are quite short, i.e. 4 miles or less, and I can't really hypermile around campus. My MPG is, of course, bad. To put it into perspective, since arriving at college I have traveled 0.9 miles and averaged 31.6 MPG.

EDIT: Also! After only ~2.5k miles I brought the lifetime average up from 62.5 MPG to 62.7 MPG!! Car has 257,100 or 257,200 miles on it now.
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2013 Toyota Prius C 2 (my car)


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

Last edited by mpg_numbers_guy; 01-12-2019 at 05:46 PM..
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