A.low lube oil temperature
B.low lube oil pressure
C.high exhaust temperature
D.high cooling water pressure
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A.Dirty lube oil filter
B.Too much piston ring wear
C.High lube oil viscosity
D.Low lube oil temperature
A.The oil oxidizes and forms carbon deposits
B.The viscosity increases
C.Engine oil consumption decreases
D.Lubricating qualities of the oil are enhanced
A.pitting
B.sludge
C.hard varnish
D.all of the above
A.increase ignition delay
B.affect fuel oil metering
C.affect engine performance at low speed
D.only disappear due to fuel oil abrasion
A.oil foaming will occur
B.large quantities of oil are consumed
C.lube oil viscosity is always decreased
D.corrosive by-products are usually formed
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