单项选择题
A.less piston slap and quieter running
B.increased crankshaft bearing wear
C.slightly greater piston wear
D.decreased side pressures
单项选择题 Which of the following statements concerning cylinder liner wear is true?（）
单项选择题 If clearance between a piston and the cylinder wall is excessive, piston slap will occurThe slap itself is caused by （）
单项选择题 Poor quality fuel being used in a turbocharged medium-speed, diesel engine could result in （）