Chevrolet 1986 Corvair Owner's Manual page 42

every 6000 miles. This interval applies to the initial
change as well as subsequent oil changes. The oil
change interval for your Corvair engine is based on the
use of oils that meet the requirements indicated in the
section on "Engine Oil Recommendations". Oil change
intervals longer than 4 months or 6,000 miles will result
in serious reductions in engine life and may effect Chev-
rolet's obligation under the provisions of the New Vehicle
Warranty.
Certain atmospheric and / or driving conditions includ-
ing prolonged operations at sub-zero temperatures or
under extremely dusty conditions, frequent trailer haul-
ing, and extensive idling necessitate more frequent oil
and filter changes.
*
Operation in dust storms may require
an immediate change of both oil and filter. See your
Chevrolet dealer for advice on frequency of oil and
filter changes because of unusual driving conditions.
A high quality MS oil meeting General Motors
Standard GM 6041-M was installed in your engine at
the factory. It is not necessary to change this factory-
installed oil prior to the recommended normal change
period. However, the oil level should be checked more
frequently during the break-in period since somewhat
higher oil consumption is normal until the piston rings
become seated.
*In many such situations, oil change intervals should not exceed 2
months, or 3000 miles, whichever occurs first, and similarly, filter
changes should not exceed 4 months or 6000 miles, whichever comes
first.
39
OIL FILTER
Replace filter of first oil change and at every second
oil change thereafter. This recommendation is based on
the use of engine oil which meets the requirements indi-
cated in the section on "Engine Oil Recommendations,"
and the use of the applicable
AC.
or equivalent quality
replacement oil filter.
TRANSMISSION-3 AND 4-SPEED
The manual transmission and the rear axle have ' a
common oil sump. Provisions for checking and main-
taining lubricant level are provided on each unit.
Follow recommendations given under "Rear Axle"
on page 41 for inspection intervals and type of trans-
mission lubricant.