Clean radiator, cool engine, coolant PH, flow, fans, shrouds.

A good read. Much appreciated Autox.

I run Justice Brothers Super Radiator Cooler that has SCA's, wetting agents, and resists electrolysis.

Here's a test on radiator additives. The Justice Brothers additive ranked on top.

http://www.turbomagazine.com/features/0703_turp_cooling_system_additives/viewall.html