The Goderich Signal-Star, 1978-11-02, Page 57New model cars foundconsiderably cleaner
They emit 70% less pollutants
in United States and Canada,
Champion's tests _show
The new -model automo-
biles are running consider-
ably cleaner than their
older counterparts, accord-
ing to results of 'the first
phase of a Champion
Spark Plug Company's
survey bf cars in the
United States and Canada.
David L. Walker, direc-
tor of . Champion's Auto-
motive Technical Services
Department, said a pre-
liminary comparison of
1,667.. -vehicles - surveyed
during the company's Fuel
Economy v. and Emissions
Test indicated the new -
model cars are emitting
about 70 per cent fewer
pollutants than pre -1968
automobiles.
Emissions lowered
Emission levels of -1970-
74 cars are also lower,
averaging 30 to nearly 50
per cent below those of
cars produced prior to
1968.
Mr. Walker said, "The
1.25 per cent carbon mon-
oxide (CO) and 162ppm
hydrocarbon (HC) aver-
ages of the 1975s we tested
are indicative of theprog-
ress that has been made
in emission control."
He also pointed out that
the test diagnosed one car
in 30 as being a "gross
emitter" — exceeding 10
per cent CO and 2,000 ppm
HC, or higher than test
instruments can measure.
"While these cars repre-
sented only a small per-
centage of our "survey,
each 'gross polluter' emit-
ted more HC than 13 av-
erage 1975s," Mr. Walker
explained, adding "the in-
pidence of gross polluting
among older cars Is con-
siderably higher, indicat-
ing that inadequate main-
tenance and vehicle age
are contributing tfactors
to excessive emissions."
Tune-ups instrumental
Champion's tests are
showing a marked de-
crease in emissions follow-
ing tune-up. Reductions
averaged 30 per cent less
CO at idle after tune-up
and an average 70 per cent
decrease -in -HC -under sinr -•
ulated 55 mph road con-
ditions.
Tune-up was also instru-
mental in increasing fuel
economy. On the average,
the 'nearly 75 untuned cars
tested realized nearly a
51/2 per cent fuel savings
after being tuned.
A wide range of other
information is being an-
alyzed from test results.
"We found emission con-
trol system components
either inoperative or dis-
connected in approximate-
ly 10 per cent of the U.S.
cars we tested," Mr. Walk-
er said. "This indicates a
definite need for more
conscientious mainte-
Tire Tip.
ONE SIDE OF TREAD
WORN EXCESSIVELY
SIDE OR CAMBER WEAR
When one side of a lire tread
shows excessive wear ... be-
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OVER
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215 Huron St., Clinton 482-9363
Page 15
CHAMPION SPARK PLUG Company's Mobile Proving Ground (M.P.G.) is continuing
its 30 city, international test program to determine the effects of tune-up on gasoline
mileage and emissions. In early findings, its tests have shown that late -model ears arc
tip to,13 times les...pelluting than, pre -1968„ dehiele rand are -stay ingwellWithingovemmen[
standards for keeping the air clean.
nance on the part of the
car owner."
Three -dear program
Champion's survey is a
three-year program to de-
termine how engine con-
dition relates to fuel econ-
omy and emissions. Pre-
liminary test results were
based on the first eight
cities surveyed. The pro-
gram will continue through
1977 with tests conducted
Da 22 other North Ameri-
can cities.
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