Any answers for this one? Driving up a hill yesterday, oil temp guage sez about 80 C, when I get 2 [not 3] beeps and the oil temp warning light comes on. Pressure is fine, level is fine, oil temp guage seems to be working and within range that car is driven all day long. Has never happened before or since. Running Mobil 1 syn, changed about 1k ago. Thanks, Bruce