Question for all of you. I have a '98 SW2 that would not start this morning. A friend came over and we pulled the spark plugs. One plug was covered in oil. We wiped it down put it back and tried again. When it did not start up we pulled it back out to look down into the housing of the spark plug to see if there were any cracks. Below the housing, I could actually see oil sloshing around in the cylinder. We don't think that there is any radiator fluid because when we pulled the dipstick, the oil was actually a little low and looked normal. Any ideas on how the oil got in the cylinder and any thoughts as to the approximate cost of repair for something like this?