Multiple Choice
Technician A says that highway diesel engines equipped with DPF should use a lube oil formulated to meet the API CJ-4 classification or later. Technician B says that FA-4 oil is backward compatible with all previous generations of diesel engine lube oils. Who is correct?
A) Technician A only
B) Technician B only
C) Both A and B
D) Neither A nor B
Correct Answer:

Verified
Correct Answer:
Verified
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