Cadillac 1975 Owner's Manual page 22

Engine Overheating Warning
Lights—Towing a trailer under exceptionally
severe operating conditions may cause the red
"Stop Engine Temperature" or amber "Cool¬
ant Temperature" warning lights to come on.
There are certain procedures to follow when
an indicator light comes on:
• If the "STOP ENGINE TEMPERATURE"
light and an audible warning buzzer
come on because of a mechanical failure
in the cooling system, you should not
drive the car until the problem is cor¬
rected.
• If the "COOLANT TEMPERATURE" light
comes on during extreme driving condi¬
tions, you should pull over to the side of
the road, turn off the air conditioner (if
used) and run the engine slightly faster
than idle speed with the transmission in
neutral.
• If the "COOLANT TEMPERATURE" light
does go off, then proceed to drive but
change driving conditions so as not to tax
cooling system so severely. If the
"COOLANT TEMPERATURE" light does
not go off within a short period of time
(1-2 minutes), then turn the engine off
and look for mechanical problems.
NOTE: If there is evidence of steam, do not
open the hood until the steam disappears.
Open the hood to cool the engi ne down fas¬
ter. Determine whether there is any mechani¬
cal problem such as a loose hose, loose or mis¬
sing fan belt, coolant loss, or radiator air flow
restriction.
After running under extreme driving condi¬
tions do not immediately turn the engine off
unless the "STOP ENGINE TEMPERATURE"
light is on. If the light is not on, put the trans¬
mission in neutral and run the engine slightly
faster than idle speed for approximately one
minute. This will reduce any tendency for the
cooling system to "afterboil" which results in
a loss of cooling system fluid.
Engine Cooling—Refer to "ENGINE COOL¬
ING" in Section 5 of this manual for cooling
system recommendations and maintenance.
Parking—Parking of vehicle with trailer on
a grade is not recommended. However,
should this be necessary, the following sequ¬
ence should be used:
1. Apply service brakes.
2. Have helper place wheel chocks under
trailer wheels.
3. When chocks are in place, release ser¬
vice brakes until chocks absorb load.
4. Place transmission in PARK position.
5. Apply parking brakes.
When Starting
1. Apply brakes and start engine in
"PARK."
2. Shift into gear and drive until chocks are
free.
3. Apply service brakes and have helper
remove chocks.
Operation in Foreign
Countries
Your Cadillac is designed to operate on un¬
leaded fuel of approximately 91 research oc¬
tane number.
If you plan to operate your Cadillac outside
the continental limits of the United States and
Canada, there is a possibility that the fuels
available in some countries are so low in oc¬
tane rating that excessive knocking and seri- —
ous engine damage may result from their use. l£L