The "wisdom" I've learned, is that ethanol has 90% of the stored energy that gasoline has. That is, a gallon of pure ethanol contains 10% less energy than a gallon of gasoline.
Since most of our ethanol is blended, 10%eth/90%gas, then a gallon of fuel at the pump has 1% less efficiency.
Now, I've always kept track of my fuel mileage, since about 1976. Back then, I kept a notebook in the car - now I use fuelly.com to record all my purchases. Recently, I bought another vehicle - a 2002 Chevy Trailblazer. I started out putting ethanol free into it, because the previous owner told me that it gets better fuel mileage with ethanol free. I guess I put about six tanks of gas into it, before making purchases at random stations, whenever I needed fuel. (It is a minor inconvenience timing my fillup when I'll be close to the ethanol free stuff.)
Anyway, this vehicle is charted on fuelly.com as ranging from 10 to 33 mpg, with the bulk of them between 16 and 18 mpg. I was happy as could be to find that my ride was routinely getting about 21 mpg, and as high as 22 mpg. But then - ethanol. After a series of about 6 ethanol fillups, my mileage had dropped off to about 17 mpg. Hmmmmm . . . that's a much greater decrease than the advertised 1%!
A guy at work told me not to worry about it - the gas companies had switched to winter blend gasoline, and fuel mileage always dropped with that. I couldn't argue with him - yeah, it IS time for winter blend.
All the same, I went out of my way to fill with ethanol free. And, BANG!! I'm right back up to ~21 mpg again.
Something ain't right here. I'm sure there are some minor inaccuracies in my fillups. One time, I may squeeze the last drop into the tank possible, and maybe the next time a get a cup and a half less in the tank. That is almost certainly what happened with the one tank that shows 21.98 mpg - I just didn't get it filled exactly like always.
I'm wondering how much further my fuel mileage might have fallen, if I didn't switch BACK to ethanol free? And, where do all those lost miles per gallon go?
http://www.fuelly.com/car/chevrolet/trailblazer/2002/runaway1956/645719
Garrison Keillor fired by MPR: 'I put my hand on a woman's bare back,' he says (comments)
Garrison Keillor off the air after misconduct allegations (archive)
The Latest: Keillor says his firing is 'bewildering'
Garrison Keillor Jokes About Improper Behavior Allegations: 'All My Heroes Got Fired'
STATEMENT FROM MINNESOTA PUBLIC RADIO REGARDING GARRISON KEILLOR AND A PRAIRIE HOME COMPANION
State of sexual McCarthyism? Or was there a little more than a pat on the back?
Here's what he's known for: A Prairie Home Companion
The Meaning Of Meghan: 'Black' And 'Royal' No Longer An Oxymoron
Britain’s black queen: Will Meghan Markle really be the first mixed-race royal?
Oh yeah she was on a couple of episodes of Fringe.
DISGUSTING PERVERT Charlie Rose fired from CBS & PBS, PERVERT Matt Lauer fired from NBC. Now cancel Fake News Phil Griffin. And fire FAILING Joe Scarborough based on the “unsolved mystery” that took place in Florida years ago. Investigate! And we should boycott Fake News CNN. Dealing with them is a total waste of time!
Luis Gutiérrez resigned, going to Puerto Rico, good riddance! He won't be clogging and seriously downgrading Fifth Avenue outside Trump Tower any more. Why hasn't PERVERT John Conyers resigned? Resign or get impeached, John! #ImpeachHim #MeToo
Part 3, final part of the series?
Friend’s reaction to high school boy’s penchant for crossdressing is both unexpected and cute
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So, i went online and designed myself a nerd shirt (last year, my daughter and son-in-law got me a shirt with the xkcd 'sudo sandwich' design on it).
This year, i got a black shirt
Front: Ich bin ein Linux Nerd!
Back: Powered by Arch linux.
Designed it myself, with off-set print. Looking forward to wearing it for our next Catan game after Christmas!
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