Operation
Reading edition
Breaking-in Instructions
Keep Radiator Full Keep Oil Reservoir Full
Heat is a major consideration in a new engine. Do not allow the engine to overheat. Although the heat indicator on the instrument panel shows the general temperature of the engine, it will not show a sudden rise in temperature of an individual part.
The pressure imposed on parts such as bearings and pistons due to rapid acceleration or hard pulling will cause them to overheat if the car has not been driven sufficiently to break them in. Avoid fast acceleration and hard pulling while breaking in.
High speed also develops higher operating temperatures and to avoid damage the car speed should be kept within the following recommendations:
0-250 MILES
Do not exceed 40 miles per hour in high gear or 20 miles per hour in second. Do not accelerate rapidly. Use second gear on steep grades. Keep motor temperature within "driving range" on dash heat indicator.
250-500 MILES
Do not exceed 50 miles per hour in high gear or 25 miles per hour in second.
500-1000 MILES
During this period the speed should not exceed 60 miles per hour.
IMPORTANT
Do not UNDER ANY CONSIDERATION attempt to maintain a high rate of speed unless the crankcase is full of good oil and until the engine is thoroughly warmed up. Cold oil is not able to flow freely into the small clearances between working parts so that damage may occur if sufficient time is not allowed for warming up before attempting high speeds.
