Cadillac 1975 Owner's Manual page 23

Also, if leaded fuels are used in vehicles de¬
signed for unleaded fuels, it may result in the
deactivation of the catalytic converter and
possibly other related problems. To obtain in¬
formation on the octane rating and availability
of non-leaded fuels available in the countries
in which you plan to travel, write to Customer
Services Department, Cadillac Motor Car Di¬
vision, Detroit, Michigan 48232 (or in Canada
write to General Motors of Canada Limited,
Customer Services Department, Oshawa, On¬
tario), giving:
• The Vehicle Identification Number (on
plate on instrument panel ahead of the
steering wheel and visible through the
windshield, or from registration slip or
title).
• The country or countries in which you
plan to travel.
It is recommended that you do not operate
your Cadillac in any country not having fuels
meeting the requirements of your Cadillac en¬
gine as these may cause engine damage for
which Cadillac Motor Car Division is not re¬
sponsible under the terms of the Cadillac New
Vehicle Warranty or Emission Control Systems
Warranty.
22