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Technician a Says Excessive Buildup of Sludge May Indicate a Poor

Question 28

Multiple Choice

Technician A says excessive buildup of sludge may indicate a poor oil change schedule. Technician B says a buildup of scale in the engine can cause cooling system blockage. Who is correct?


A) A only
B) B only
C) both A and B
D) neither A nor B

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