Hi I have not owned a 911 996 before and had this one for only a few months. This is a 1998 Tip model and covered less than 80K. Recently I have only completed short distances approx a total of 14 miles (7 miles each way). The temp gauge reaches just over the 40'. I have just noticed a white mayonnaise type deposit in the oil filler tube, along with moisture/watery evidence. I have just "tasted" the moisture deposit and I couldn't taste antifreeze. There is no oil in the coolant expansion tank. I am worried after all the well publicised cracked engine blocks etc. Could someone please also advise what should the idea running temp be as even on a long journey the needle only reaches 40' unless im stationary for a while.