Cadillac 1967 VVI Data Book page 176

Owner Protection Plan Booklet
It is important that the Owner Protection Plan booklet be kept
in the glove compartment of your car at all times as it must be
presented to your dealer when warranty service is required.
The Protect-O-Plate on the inside back cover of your Owner
Protection Plan booklet contains important vehicle data per-
taining to your Cadillac. Your dealer may insert your name
and address and the delivery date of your new car to ptovide
complete identification. The identification information on the
Protect-O-Plate will allow him to proceed with your service
requirements with the least amount of inconvenience to you.
Owner responsibility
Your new Cadillac, like all fine machinery, requires regular
care to maintain its peak performance and preserve its show-
room appearance. Periodic maintenance assures you of many
miles of carefree driving, and protects your investment. A
recommended maintenance schedule is included in the Owner
Protection Plan booklet.
Cadillac service
Authorized Cadillac Dealers are well qualified to assist you in
the maintenance of your car because their service personnel
have the advantages of:
1. Specialized Cadillac training at General Motors Training
Centers.
2. Special tools and equipment designed for Cadillac
products.
3. Genuine parts that are engineered for your Cadillac.
4. Factory product information and factory-dealer co-
operation that contributes to efficient service and the
latest in mechanical procedures.
For the best in Cadillac Guardian Maintenance service, take
your Cadillac to an Authorized Cadillac Dealer.
Fuel requirements
Your Cadillac is designed to operate efficiently on "Premium"
grade fuels commonly sold in the United States and Canada.
Use of a fuel that is too low in anti-knock quality will result in
"spark knock." Since the anti-knock quality of all premium
grade gasolines is not the same, and factors such as altitude,
terrain and air temperature affect operating efficiency, knock-
ing may result even though you are using the grade of fuel
recommended for your engine. If persistent knocking is en-
countered, it may be necessary to change to a higher grade of
gasoline and, if knocking continues, consult your Authorized
Cadillac Dealer.
In any case, continuous or excessive knocking may result in
engine damage and constitutes misuse of the engine for which
the Cadillac Motor Car Division is not responsible under terms
of the Manufacturer's New Vehicle Warranty.
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