Fuel Economy, Hypermiling, EcoModding News and Forum - EcoModder.com - View Single Post

mpg_numbers_guy · 07-03-2019, 10:00 PM

Just filled up today for the first time in 20 weeks. Records all around.

As you may have seen on the left, my pizza delivery fuel economy is logged separately for work reasons. Most of my driving is deliveries, where I am extremely limited on the amount of hypermiling I can do - half coast to stops rather than full coast, no AC, time lights, highest gear, lean burn, but that's about it. Speed limit or 5 above is pretty normal. I also can't run a tank dry as I want at least 2 gallons of gas in the car whenever I go to work.

Today's fill up was 782.6 miles on exactly 8.8 gallons, same gas station, first click as always. On this tank I did 644.3 miles of deliveries averaging 85.56 MPG. Subtracting that from the whole tank means that my 138.3 miles of non-delivery driving averaged 108.9 MPG, which is pretty close to my trip-by-trip estimate (My FCD has never been more than 2% off; it varies between 1% low and 2% high).

The whole tank was 88.93 MPG, which I think is pretty great considering over 80% of the miles were with very limited hypermiling. This constitutes a "full tank" record since all my other tanks have been brought down by pizza delivery, even though all of my non-delivery driving this summer since getting back from college is currently averaging around 100 MPG.

These little trips are getting better too. My drive to the gas station from work was a new record, 125.0 MPG, and my drive home from the gas station was 126.6 MPG. Neither have any real elevation change between destinations. Of course little trips don't make a huge difference on their own, but they add up when most of my driving outside deliveries is just those short trips.

I need an excuse to do on a highway trip and see how well the Insight performs. There is a noticeable fuel economy improvement when the outside temperature is 85 degrees versus even 70, so I'd like to see 100 mpg for a highway trip, but we'll see. So far I don't have any excuse for a highway trip though, so I can only wait. And, of course, randomly taking a highway trip just for FE numbers is against the ecomodding bible because it's wasting gas for no purpose.

-

Waiting on a fan to arrive, then going to get the meanwell put in it's final position and resume the rear rebuild.

Going with a dual fan setup - replacing the stock fan and adding a 92mm fan. Specs indicate double the airflow at half the current; we'll see.

07-03-2019, 10:00 PM	#234 (permalink)
mpg_numbers_guy Master EcoModder Join Date: Feb 2018 Location: VA Posts: 1,372 Toby - '13 Toyota Prius C Team Toyota 90 day: 63.99 mpg (US) Daz - '15 Mazda 3 iTouring w/ Tech Package Team Mazda 90 day: 38.2 mpg (US) Thanks: 324 Thanked 483 Times in 368 Posts	Just filled up today for the first time in 20 weeks. Records all around. As you may have seen on the left, my pizza delivery fuel economy is logged separately for work reasons. Most of my driving is deliveries, where I am extremely limited on the amount of hypermiling I can do - half coast to stops rather than full coast, no AC, time lights, highest gear, lean burn, but that's about it. Speed limit or 5 above is pretty normal. I also can't run a tank dry as I want at least 2 gallons of gas in the car whenever I go to work. Today's fill up was 782.6 miles on exactly 8.8 gallons, same gas station, first click as always. On this tank I did 644.3 miles of deliveries averaging 85.56 MPG. Subtracting that from the whole tank means that my 138.3 miles of non-delivery driving averaged 108.9 MPG, which is pretty close to my trip-by-trip estimate (My FCD has never been more than 2% off; it varies between 1% low and 2% high). The whole tank was 88.93 MPG, which I think is pretty great considering over 80% of the miles were with very limited hypermiling. This constitutes a "full tank" record since all my other tanks have been brought down by pizza delivery, even though all of my non-delivery driving this summer since getting back from college is currently averaging around 100 MPG. These little trips are getting better too. My drive to the gas station from work was a new record, 125.0 MPG, and my drive home from the gas station was 126.6 MPG. Neither have any real elevation change between destinations. Of course little trips don't make a huge difference on their own, but they add up when most of my driving outside deliveries is just those short trips. I need an excuse to do on a highway trip and see how well the Insight performs. There is a noticeable fuel economy improvement when the outside temperature is 85 degrees versus even 70, so I'd like to see 100 mpg for a highway trip, but we'll see. So far I don't have any excuse for a highway trip though, so I can only wait. And, of course, randomly taking a highway trip just for FE numbers is against the ecomodding bible because it's wasting gas for no purpose. - Waiting on a fan to arrive, then going to get the meanwell put in it's final position and resume the rear rebuild. Going with a dual fan setup - replacing the stock fan and adding a 92mm fan. Specs indicate double the airflow at half the current; we'll see. __________________ 2013 Toyota Prius C 2 (my car) 2015 Mazda 3 iTouring Hatchback w/ Tech Package (wife's car)