C6H12O6

Far as I can tell, the later FCT-075 black hub fan clutch can get a fluid replacement to thicker silicone, but there isn't any opening temperature adjustment. Just remove the eight screws, drain the lower-viscosity fluid and replace with 15,000...

Yes, and I'd add at least one more: If you leave maintenance and upgrades until the last minute before a trip, you have nobody to blame but yourself. I didn't change the carb thinking it would be a silver bullet. I had ordered it weeks ago just...