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Old 01-29-2020, 10:18 AM   #23 (permalink)
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Join Date: Jan 2008
Location: SE USA - East Tennessee
Posts: 2,312

Josie - '87 Toyota Pickup
90 day: 40.02 mpg (US)

Felicia - '09 Toyota Prius Base
90 day: 50.99 mpg (US)
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Temps make a big difference. From about 55F and up, my Prius makes summertime MPGs, from 55F and down, winter MPGs - and "winter MPGs" get worse and worse, the colder it gets.

Again, if you go to the garage page and look at some of the vehicles that have been updated for several years, you'll see a pretty clear relationship between fuel economy and the time of year. Warmer is gooder.

As to fuel grade affecting fuel economy, I haven't observed that. Then again I only fill up at about three different places, and always get the cheap stuff so I don't have a lot of scope for comparison.

As to the truck, I think it would run on straight Pabst Blue Ribbon so whatever pisswater fuel I can pour into the tank, it'll deliver some kind of performance.

Lead or follow. Either is fine.
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