Originally posted by Stevedrivr:
Quote:

Water in the oil causes that



Are there AIR Bubbles or WATER bubbles? Air bubbles could simply be from too much oil in the crancase. Crankshaft whips throught it and aerates the oil. Or too LOW oil level will uncover the pick up during hard lateral movements. (accel, braking, hard cornering, etc.)and the oil pump will suck air and froth things up. (Neither is exactly a good operating condition for an engine!)

Water bubbles are a different mater. Water or coolant bubbles usually have a milky white look to them, and can often be found inside your oil fill cap as well. WATER could be from condensate forming as previously stated. The PCV system will remove it usually. Exceptions are in spring and fall, (Hey! Its Fall!) if you take very short drives. Condensate forms in the oil pan as the temperature drops during the night. When the temp drops below the atmospheric "dew point", water vapor will literally condense to liquid water. The temperature at which this will occur increases as the humidity level increases. (In its most severe form it's called RAIN!) If there's dew on the grass during the night or in the morning, you're at the right temp level. (I see you live in the Bay Area. Has it been sticky or foggy nights? Raining for a while?) Normally this would be evaporated out as the engine oil reaches operating temp and you drive long enough. SHORT drives never get the oil hot enough to evap the water and it stays in the pan, slowly making it look like your oil level is actually INCREASING! If it is COOLANT, not water, you have an internal engine leak, most common being a bad head gasket. Give us a little more info.


very informative....

http://www.myspace.com/mycainsbroken