somehow you have got water in the crankcase. this can happen if tractor is parked outside in rain.the raqin can enter thru upright exhaust and seep into oil pan. dump the oil and put new oil and oil filters in. the sludge on oil filler cap is condensation of oil and water created when engine is at running temp. from the water in the oil pan. changing oil will remedy this.as you said no running problems and clear exhaust, this is not a head gasket problem a hint for you,is to place and old can upside down over the exhaust when parked out in the weather.this will keep moisture and rain out of the engine,not to mention the blck crap that will shoot out when you start engine
It's diarrhea that is frothy and watery.
"Frothy" means a slight foam has appeared at the top of the liquid you are whipping or beating.
rapids
To make frothy milk for coffee drinks, heat milk in a saucepan until warm but not boiling. Use a frother or whisk to vigorously mix the milk until it becomes frothy and foamy. Pour the frothy milk into your coffee and enjoy!
Pink frothy sputum is a sign of pulmonary edema, which is a condition where fluid accumulates in the lungs.
Frothy eloquence refers to light and entertaining statements that offer little substance.
It's meant to mean that they have rabies. Some dogs just get frothy mouths when the run around a lot.
Soapy water is a solution of water mixed with soap or detergent. When it becomes frothy but does not produce a lather, it usually means that the solution has trapped air bubbles within the liquid, creating a frothy texture.
Pumice
A frothy texture.
Yes, you can steam heavy cream to create a frothy texture for drinks or desserts.
To make your coffee frothy, you can use a milk frother, froth the milk with a whisk, or shake it in a jar before adding it to your coffee.