I need some help. In addition to our XC70, my daily driver is an 850 wagon.
It has had a little white substance in it everytime I change the oil... condensation people said. I did not really think much about it and the oil was always a bit thicker and light brown (chocolate milk colored) in some areas.
It also burns oil. Today I went out to check it and there is no regular looking oil in the engine. The whole dipstick is covered in this thick chocolate milk almost paste stuff! I know this is bad.. I checked under the oil filler cap and it is still normal oil looking.
Allthough there is alot of horrible sludge under there--I had never really looked down into the engine through the filler cap. However around the filler cap itself the oil is still normal brown and looks and smells normal.
This car performs like normal and I daily get the car to 85-95mph on the freeway on my way home. I do not feel like there is a loss of power. But I know with this new advancement of all the oil in the dipstick area being paste I am in serious trouble.
Some background, this is not a well cared for car. It is what is called a beater car... people own it on military bases and sell it every 2-3 years, never doing real maintenance on it. I did change the oil about 3000 miles ago.
Any thoughts on what I should do? Is it a blown head gasket? The level of coolant in my radiator does NOT go down, and stays constant. How can I get rid of the sludge, and what else can make the oil turn into chocolate milk paste and not be a cracked block or head gasket? Would not a cracked block degrade my performance? Like I said I daily take this car to about 95mph on the German Autobahn with no loss in performance. I was told that ANY sort of crack or head gasket issue would give me loss of power, but it have none. The car even idles great!!!
Also if it is a cracked block is there anything I can do short of replacing the engine? Is there anything like radiator stopleak for engine blocks that leak? This car only has to last me another 12 months before I buy a new car!