Water In Diesel Oil

As the engine heats up after it is started and then cools off after the car is turned off condensation can cause small amounts of water to enter the oil.

Water in diesel oil. This drives off the moisture that simply comes from your engine breathing when it is not being used cold air enters a hot engine and water condenses and from combustion byproducts. Water in the fuel can also promote the growth of bacteria and fungi. Large amounts of coolant antifreeze and water can contaminate the oil if a gasket ruptures or the engine s head or block becomes damaged. You generally don t have to worry about one of the ways if you drive your car enough to burn off the water during normal driving.

If water is mixing with the oil in a v style engine that has intake manifolds sealed to the block then the intake manifold water jacket gasket might be leaking into the inside of the engine. Water can get into the oil two ways. There can be one of two contaminants in the oil. Most industrial oils such as hydraulic fluids turbine oils etc can hold as much as 200 to 600 ppm of water 0 02 to 0 06 percent in the dissolved state depending on the temperature and age of the oil with aged oils capable of holding three to four times more water in the dissolved state than new oil.

The wärtsilä system reduces nox emissions by 50 60 down to typically 4 6 g kwh on marine diesel oil and 5 7 g kwh on heavy diesel oil operating at an injected water to fuel ratio of 0 4 0 7 which corresponds to 28 41 water in the water fuel mix. The first observation to make is to assess the colour and consistency of the fluid. White creamy coloured oil is indicative of water contamination where as diesel contamination tends to dilute the oil making it less viscous. Such leaks occur when bacteria builds up in the antifreeze or coolant solution.

Either coolant water or diesel fuel can escape from their systems. Any contaminant including water can cause costly damage. Water in diesel fuel is a serious problem that should be addressed immediately. Water is bad news for diesel because it encourages the growth of diesel bug rusts steel and leads to the formation of gums and resins which can stick to the side of fuel tanks injectors and even causing layers of sediment to build up inside the tank.

Nox reductions are most efficient at engine loads of 40 and above. The triple effect of water contamination in diesel.