Engine oil Valvoline VR1 Racing Oil 10W30 Lucas Safegaurd Ethanol fuel conditioner with stabilizers Water Wetter mixed with a 60-70% water to 30-40% antifreeze ratio... I live in the south I have found this to lower my temp by ~20 degrees.
bernie, you're saying that 10% (or so) of water wetter made a 20 degree difference?
I'm a hobbyist. Not a professional. Don't be hatin'!