If you want to run cooler, you need a hotter thermostat. You want coolant staying in the radiator longer. With a cooler thermostat, your coolant won't get a chance to cool, causing you to overheat and your thermostat will not close.
95 Turbo 850 - Alpine White
98 V70 T5 SE - Brilliant Black | ARD Stage 2 | Bosch Blues | Koni FSDs | IPD Springs | Alcantara Interior | C70 Jewel Retrofits | IPD HD End Links | Burned Exhaust Valve