There seems to be only one pump in Madison, WI that sells
gasoline without ethanol. But even that comes at a price -
regular gas without ethanol costs 10% more.
I was curious how much less efficient the traditional 10/90
ethanol/gasoline mix is. Went four tanks on pure gas in
my 2010 Sonata. The result: 2.6% better MPH in comparison
to the "contains up to 10% ethanol". So, alas, not really worth it
considering that it costs 10% more. Oh well, seems like there
is no way around paying the indirect corn ethanol tax, even
if it's only 2.5%.
That is about right. Given that ethanol has about 2/3 the energy
content of gasoline, having 10% ethanol should cause about a 3.3% loss
in mileage which is close to what you had within experimental error.
A lot depends on how well the car can adapt to the ethanol. Some cars
are better equipped to handle it than are others.
On Sun, 01 Apr 2012 11:47:56 -0400, Brian Matthews
I remember a couple of cars with a big V-8 and you could feel the
power drop when the AC was turned on. Today, I can't even tell if the
compressor is engaged.
I rarely open the windows these days, preferring the quiet of no wind
noise and the comfort of climate control. About four days a year I
wish I had a convertible. Last time I drove one was a few years ago,
it was a rental. I drove down Las Vegas Blvd with the top down and the
AC full blast in the 100 degree afternoon.
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