Wife's '97 Camry with 220,000 miles on the 2.2L 4-banger blows a lot less heat than it did previous years. I put in new Coolant this Spring & it came out clean. Went to NAPA to get a Thermostat yesterday and they say there's no 195 Degree Thermostat, just 180's... I bought their NAPA Premium. Is that right? No 195 Thermostat?? Thank you!