+32° F. (0° C.) S.A.E. 30
+10° F. (-12.2° C.) S.A.E. 20
-10° F. (-23.3° C.) S.A.E. 10W[2]
Below -10° F. (-23.3° C.) S.A.E. 5W[3]
[2]Oil in cans marked 10W or S.A.E. 10-10W is satisfactory for use where
S.A.E. 10W is recommended.
[3]The engine should not be operated at sustained high speeds when using
S.A.E. 5W engine oil.
Most of the higher priced motor oils sold today contain chemical
detergents which hold extremely small particles of carbon or other
foreign matter in suspension. Many of the particles are so small that
they flow through the oil filters with the oil and remain in suspension.
For this reason, oil which is perfectly good for lubrication purposes
may be discolored when seen on the oil level gage. With such oils the
need for an oil change should be governed by the mileage the oil has
been used and the dust conditions prevalent during that mileage. As long
as the oil retains a “slick” quality and good body, it is generally
satisfactory.
[Illustration: Raise or lower car with jack _outside_ bumper bar.]
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DOWN POSITION
[Illustration: Remove wheel cover ... retaining nuts ... and wheel.]