Friday June 14, 1974,

THE MICHIGAN DAILY

Page Nnes

Gas-water mix fuels mal trucks

NORMAN, Okla. (P) - Some
Norman postmenc are delivering
he mail with water in t h e i r
[rucks' gasoline. It hasn't deter-
red them from their appointed
rounds either.
"We haven't had any trouble
t all," said- Blair Wildermuth,
rector of the Postal Services
maintenance technical support
enter at the University of Ok-
shoma. "We've been operating
ome of our vehicles since last
November on regular mail rout-
es, using the gas and water mix-
are. There have been no me-
hanical problems whatsoever."
BUT THE average, motorist
setter take heed before he de-
-ides to dump a pitcher of water
a his gas tank to beat the
nigh price of gasoline. It takes
;came sophisticated equipment to
make the mixture.
The water-gasoline mixture is
.A emulsion produced by a spec-
a machine. It's something like'
Around A
Duplicate bridge will be play-
ed in the Union Assembbl (oon
onight at 7:30 p.m. Gatos are
open to all.
A dance concert will be pre-
sented in conjunction wit' the
18th Annual National Convmen
ti(0 of the American D -r. c e
(mild tonight at the Power (Cent-
cr at 8:30 p.m.

distributing the cream 'all
through the milk in homogenized
milk.
If the water and gasoline are
just mixed together, the light-
er gasoline separates and rais-
es to the top. But properly emul-
sified, the result is a cleaner-
burning product and one which
provides better mileage p e r
gallon, proponents say.
"WE'RE GOING to try to
write up a final report by the
end of July," Wildermuth said.
"We've been running tests daily
to see how the mixture works.
"We have tried some experi-
ments up to 50 per cent water,,
but we've concentrated our test-
ing to 13 and 25 per cent. The
25 per cent water mixture seems
to be the optimum."
The emulsified fuel was de-
veloped by Walter Ewbank, Ok-
lahoma University professor of
aerospace, mechanical and nuc-
lear engineering.
Daily Official Bulletin
Friday, June 14
Day calendar
WUoM: ancient studies scholar
and author Cora Sowa speaks on
"Ancient Myths in Modern Movies,"
91. MHz, 10:15 a.m.
Sea Grant Seminar: Dr. James R.
Kramer speaks on "Precipitation
Chemistry in the Great Lakes Bas-
in," Rm. M1122, SPH II, 11:00 a.m.
Hospital Commission for Women:
W10410 Hospital, noon.
UM Dancers: concert presented in
conjunction with 18th Annual
Vatl Convention o the American
Dance Guild, Power, 8:30 p.m.

ALTHOUGH the current fuel
shortage has heightened interest
in his work, increased gasIl ne
mileage wasn't his only goal
when he started the exnerimeis
at UCLA in 1965. He ,]so was
looking for a way to cut town.
on the tremendous amount of
pollutants automobiles emit in
urban areas.
Eubank figures that with a
13 per cent water mixture,
there should be nearly a 13 per
cent saving in fuel car. The
emulsifying machinery is inex-
pensive, he said, and "water is
nice and cheap."
But mainly, the ioixtre pro-
duces improved octane p c r -
formance, substantial reductions
in carbon monoxide and nitro-
gen oxide emissions and elimi-
nation of lead emissions, he said.
SINCE these emissions are re-
duced or eliminated, the em's-
sion control equipment not re-
quired can be disconnected, pro-
viding even greater fuel econ-
omy, he said.
"The water cools the zombs-
tion process, thereby reducing

the production of pollutants ash
as oxides of nitrogen," Ev!).nk
said.
"The cooling also illows a
more complete burning af the
fuel, which increases etigina ef-
ficiency and reduces the atuornt
of unburned hydro-Arbons,
among other pollutants."
All a mechanic has 'o do to
adapt an auto carburetor to use
the 13 per cent mixturo is to
adjust the idle jet to let more
fluid through and disconnen ,all
emission controls, a matter of
a few minutes' work, Ewank
said.
NEW CARBURETORS or ex-
'tensive alterations on prosent
ones are necessary far higher
mixtures and that is way he is
partial to the 13 per con mix-
ture, -he said.
Ewbank has formed VAREP3
Associates Inc. with Fr'nsk An
drews, a Fullerton, Calif, con-
culting engineer, and others to
license oil companies t use the
process. ,
Andrews contacted Ewisank in
1970 and they agreed to ex-
change information and any pro-

fits since they had bet- wok-
ing along similar lines.
EWBANK SAID Andrecs cur-
rently is running a fleet of t-st
vehicles sith the miNors in
California. lie said Andrexs is
trying to impress the S st 'crn
California Air Resources Board,
which sets clean air stanueards
for Southern California, wi', the
water-gasoline mixture.
Ewbank said the ons way the
emulsified fuel, which 'e terms
"economically feasible and eco-
nomically desirable," rit. reach
the market is for the ma or oil
companies to license the pro
cess.
The fuel used in the pvlti
vehicles here is mixed in siall
batches in a laboratory, but Ew-
bank said: "I'm not abosit to let
the average person try 'a mie it
in his garage. The danger of ex-
plosion any time you're wx' ing
with gasoline is just too great."
Ewbank siys he has seen is-
ing the mixture in nis statino
wagon since 1968. Although it
has 99,000 miles on it, the wa-
gon has never had a majior over-
haul, he says.

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