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Which risk increases when a blended biodiesel fuel introduces a significant concentration of linolenic acid?

A)Pitting corrosion propagation rate
B)Lower fuel-mixture flash point
C)Increased fuel-pump cavitation
D)Reduced engine compression ratio

💡 Explanation

Pitting corrosion propagation rate increases because the mechanism of autoxidation produces hydroperoxides, therefore aggressive corrosion occurs, rather than combustion issues or compression losses associated with fuel breakdown under normal operating conditions.

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