A.clogged fuel injection pumps B.increased cylinder liner wear C.intake valve stem corrosion D.varnish deposit on pistons
A.Injection lag B.Lube oil dilution C.Pre-ignition D.Corrosion
A.increase thermal efficiency B.cause clogging of the fuel system C.increase the ability of the engine to start in cold weather D.produce corrosion in the cylinder and exhaust system at low loads