Buick LeSabre 1965 Service Manual page 12

MAINTENANCE
1-1
GROUP 1
MAINTENANCE
SECTIONS IN GROUP 1
Section Subject
1-A Lubricare Instructions
Page
1-1
I
SECTION 1-A
LUBRICARE INSTRUCTIONS
CONTENTS OF SECTION 1-A
Paragraph Subject Page Paragraph Subject Page
1-1 Engine Oil Recommendations . . . . 1-1 1-7 Maintenance - Seasonal 1-9
1-2 Maintenance - Periodic 1-4 1-8 Maintenance - As Required 1-9
1-3 Maintenance - Every 6,000 Miles . . 1-4 1-9 Rear Axle Recommendations . . . . 1-10
1-4 Maintenance - Every 12,000 Miles . 1-7 1-10 Vehicle Operation Under Dusty
1-5 Maintenance - Every 18,000 Miles . 1-8 Conditions 1-11
1-6 Maintenance - Every 24,000 Miles . 1-8
1-1 ENGINE OIL
RECOMMENDATIONS
a. Engine Oil
Engine crankcase oils have a def-
inite effect on ease of starting,
oil economy, combustion chamber
deposits and engine wear. It is
recommended that you use an oil
which, according to the label on
the can, is: (1) intended for serv-
ice MS and (2) passes car makers'
tests or meets General Motors
Standard GM 4745-M. Oils con-
forming to these types contain
detergent additives.
b. Grade or Viscosity
The grade or viscosity (SAE num-
ber) of engine oil should be se-
lected for the lowest anticipated
temperature at which cold engine
starting will be required as rec-
ommended in the temperature-
viscosity chart above.
Oil level should be checked more
frequently during the break-in
period since somewhat higher oil
c. Engine Oil Change and Viscosity Recommendations
Anticipated Lowest
Temperatures
Above Freezing (+32°F.)
Below Freezing (+32°F.)
(to 0°F.)
Below 0°F.
Use S.A.E.
Viscosity Number
S.A.E. 10W-30
S.A.E. 20W
S.A.E. 10W
S.A.E. 10W-30
S.A.E. 5W-20
S.A.E. 5W
Change Your Oil
at Least
Every 60 days*
Every 60 days*
Every 60 days*
•Never exceed 6000 miles between oil changes. During extreme driv-
ing conditions which produce oil contamination by dust, water, or
other foreign material, the oil should be changed more frequently
than every 60 days. Your authorized Buick dealer is well qualified
to advise you.
consumption is normal until pis-
ton rings become seated.
The oil level should be maintained
between the "operating range"
marks on the gauge rod; each
space between marks represents
one quart. Do not fill above the
upper mark.
d. Oil Color
The color of "Service MS" type
oil does not indicate its condition
since it normally becomes dark
(black or gray) after only a few
hundred miles of driving. This is
because the detergent content en-
velopes and holds in suspension