Maintenance And Lubrication - Chevrolet 1986 Corvair Owner's Manual

MAINTENANCE AND LUBRICATION
FUEL REQUIREMENTS
Your Corvair is designed to operate efficiently on
"Regular" or "Premium" grade fuels, commonly sold in
the United States and Canada, depending on the engine
installed in your car. The table below indicates the fuel
grade requirements for various Corvair engines.
ENGINE
95 H.P. TURBO-AIR
110 H.P. TURBO-AIR
140 H.P. TURBO-AIR
FUEL GRADE
Regular
Premium
Premium
Use of a fuel which is too low in anti-knock quality
will result in "spark knock." Since the anti-knock quality
of all regular grade or of all premium grade gasolines
is not the same and factors such as altitude, terrain and
air temperature affect operating efficiency, knocking may
result even though you are using the grade of fuel rec-
ommended 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 Chevrolet Dealer.
In any case, continuous or excessive knocking may
result in engine damage and constitutes misuse of the en-
gine for which the Chevrolet Motor Division is not re-
sponsible under terms of the Manufacturer's New Vehicle
Warranty.
32
Operation in a Foreign Country
If you plan to operate your Corvair outside the con-
tinental limits of the United States or Canada, there is
a possibility that the best fuels available are so low in
anti-knock quality that excessive knocking and serious
engine damage may result from their use. To minimize
this possibility, write to Chevrolet Motor Division, Gen-
eral Motors Corporation, Owner Relations Department,
Detroit, Michigan 48202, giving: (1) The compression
ratio of your engine (see page 44 or obtain from your
dealer); (2) The vehicle identification number (see page
44); (3) The country or countries in which you plan to
travel.
You will be furnished details of adjustments or
modifications which should be made to your engine by
your Chevrolet Dealer prior to your departure.
Failure to make the necessary changes in your car and
subsequent operation under conditions of continuous or
excessive knocking is considered misuse of the engine for
which the Chevrolet Motor Division is not responsible un-
der terms of the Manufacturer's New Vehicle Warranty.
After arriving in a foreign country, contact the near-
est authorized General Motors Dealer for brand names
of the best fuels available and advice as to where they
may be purchased.