GOVFR

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I don't know about "that much", but I do believe running the fan at speed will degrade cooling.(actually I don't know much at all, so be careful) On my 5th Gen, I have a simple switch to turn on the fan early when confronted with low speed or traffic situations. It seems to work well. Nothing fancy. I have tried cooling system additives touted as heat reducers, but really did not see any improvement. This year my mechanic recommended top shelf "automotive" coolant and the temp.s are holding better than ever. My thermostat seems to open right at the 220 mark, if and when things start heating up. Depends a lot on ambient temps, terrain, duration, etc. Running at decent speeds in 6-8000 RPM range temps drop or hold around 180. GoVFR Ride Safe