The crankcase dilution means
The crankcase dilution means Correct Answer Dilution of lubrication oil by fuel in the crankcase
Crankcase dilution is a phenomenon of internal combustion engines in which unburned diesel or gasoline accumulates in the crankcase.Excessively rich fuel mixture or incomplete combustion allows a certain amount of fuel to pass down between the pistons and cylinder walls and dilute the engine oil.