HomeMy WebLinkAboutThe Citizen, 1986-11-05, Page 17PAGE 18. THE CITIZEN, WEDNESDAY, NOVEMBER 5, 1986.6
Cleansing gas helps cars
i” gasoline.
• The mist is the key. The
injector’s circular opening is as
thin as a human hair. Probably the
by-products of combustion, tiny
deposits can restrict flow, produc
ing ragged streams instead of a
fine mist. You could get poor
starting, rough running and uncer
tain acceleration.
At a Society of Automotive
Engineers forum on “Port Fuel
Injector Fouling problems’’ Mobil
Research and Development Cor
poration reported formulating a
gasline containing a carefully
engineered “package” of chemi
cal detergents. Two tankfuls of the
new gasoline substantially cleaned
up injector deposits and boosted
car performance, reported re
searcher A. M. Horowitz.
Further details on research
methods and findings are reported
by Horowitz and fellow research
ers J. C. Trewella and G.P.
Abramo in a new paper prepared
for SAE’s 1986fuels and lubricants
meeting. A typical finding was that
an injector with flow restricted
about 25 per cent was cleaned to
only 3 per cent restricted by two
tankfuls of this detergent gasoline.
I
Gasoline Mist sprayed [left photo above] by clean injector [below]
boosts auto power, driveability and fuel economy. Micro-photo [centre
above], enlarged about 30 times, contrasts clean “pintle” with one
[right] encrusted by deposits. Tiny nail-line pintle, about 0.03 inch in
diamter, acts as nozzle valve in centre of port fuel iryector.
You’re carrying vast energy in
your gasoline tank - the power per
cupful of about 23 sticks of
dynamite. Yet liquid gasoline
doesn’t burn very easily. The
vapors do.
Technology slices through this
paradox to provide maybe 15 to 25
controlled explosions per second in
each cylinder at 55 miles per
hour. But petroleum science does
Learn more about
cold weather starting
much more to produce today’s
high-tech automotive fuel.
For one thing, in choosing
gasoline, a thoughtful driver looks
at detergency - a gasoline’s ability
to fight power-robbing deposits in
your engine.
That’s particularly true as car
makers - to improve power,
driveability and fuel economy -
increasingly shift to fuel injectors
instead of carburetors.
About the size of your thumb,
one fuel injector per cylinder
sprays a computer-measured mist
of gasoline into the cylinder’s
intake port. There it mixes with air -
about 15 parts of air to one of
Keeping your automobile in
good shape makes good motoring
sense. It can also help insure that
you won’t have to pull out your
battery booster cables this winter.
Here are some basic mainten
ance tips, developed by The Gates
RubberCompany, thatwillhelp
you make sure your car starts
promptly.
1) Keep the gas tank full. This
prevents condensation of moisture
in the tank, which leads to fuel line
freeze-up.
2) Use the correct grade of winter
motor oil for your area of the
country. Most vehicle manufac
turers recommend a 10W-30 multi
viscosity oil.
3) Consider a minor tuneup,
including checks of the charging
and starting systems, spark plugs
and ignition wires. Wet or cold
winter weather increases deficien
cies in ignition components, and
worn spark plugs easily require
twice the electricity as new ones.
4) Have the battery checked for
electrolyte level, even if it’s a
“maintenance-free” type. Some
of these batteries must be checked
with a voltmeter. A battery at 0°F
produces less than 50 percent of
the power it has at 80°F, and
requires twice as much power to
crank the engine.
5) Check the condition, tightness
and cleanliness of the battery
posts. The electrical resistance
that develops when a battery cable
terminal is loose or badly corroded
can easily cause a no-start pro
blem.
6) Rust, seeping anti-freeze and
just plain old crud in the cooling
system can cause your engine to
crank sluggishly or not at all. The
system should be flushed out and
new coolant added every other
year.
7) Auxiliary heaters such as oil
heaters, coolant heaters and batt
ery heaters are used in many
northern states, and can often be
useful elsewhere. Engine block
heaters will help starting in
moderately cold climates.
8) Check all V-belts, says Gates,
especially the alternator drive. The
alternator should carry most of the
electrical load, thereby reserving
battery power for starting the
engine and operating emergency
accessories.
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AM/FM radio, fibre glass
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1985 Nissan Longbox 4x4
1984 Chev Celebrity, 4-dr.,
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1983 Oldsmobile 88 Royale,
loaded. Like new.
1985 Ford F150 Pickup, 6-cyl.,
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1982 Mazda 626 Luxury 4-dr., 5
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Protection
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