Originally Posted by barnym17
210 is almost perfect for emissions and fuel economy.Your oil temp must exceed the boiling point of water in order for water to be boiled out of the oil otherwise your oil will milk up fast.This is the same reason short trip driving is considered extreme conditions by oem's calling for short oil change intervals.Engine wear has been shown to greatly reduced at 210 vs. 165 for example.The problem is at 210 you don't leave a lot of wiggle room before overheating sets in I personally would consider 230 to hot but thats just me.
Barnym17, thanks for something new under the sun. The oil thing makes perfect sense. I might add an oil temp gauge to my ride and do a little testing...