Case 120 - ENGINE LUBRICATION; Oil Selection and Change Procedure

ENGINE LUBRICATION
Selection of Lubricating Oil
It is extremely important that you select and use in your Case
Tractor a stable, high quality, "SAE - MS or DM Service Classifi-
cation Oil that has passed Automotive Manufacturers Association
(AMA) Test Sequences I, II, and III.
Engine Oil SAE Viscosity Rating
SAE 30 Air Temperatures-SO" F and Above
SAE 10-W Air Temperatures 0" F to 30' F
SAE 5-W or 5W-20 Air Temperatures 0* F or Below
REGULAR OIL CHANGE
Drain and refill the crankcase at least every 25 hours of opera-
tion.
If the engine service is severe - (frequent stopping and starting,
high or low operating temperature) - the crankcase should be drained
more often to prevent the formation of sludge or harmful deposits
in the engine.
CRANKCASE OIL CHANGE
IMPORTANT
1. When just the crankcase is drained, always refill with 3 measured
pints of oil. Do not refill using the dipstick as a guide.
2. Operate the engine for a few minutes; then check the oil level with
the dipstick.
Be sure to allow sufficient time for the oil to run down off the en-
gine parts.
3. By following the above procedure, you will prevent overfilling or
underfilling the crankcase, either of which can be detrimental to
the engine service life and will give you false oil consumption
records.
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