I whole heartly recommend REDLINES WATER WETTER, avaliable at most Autozones,....use it with FRESH antifreeze,......I'd recommend you flush out the green stuff if your running it,...and use Zerex G-05,....it's not that crappy Dexcool crap that will clog your engine,......Zerex is formulated for engines that use "green" anti freeze,.....you could use the water wetter (8-10 OZ.) with traditional Green antifreeze, ...but you really see a drastic change with a 50/50 water/Zerex G-05 mix with Redlines water wetter added,............my wingcars run HOT, obviously from the reduced grille area in traffic,.....I've played with everything,......the only thing I've seen offering an imediate change, altering nothing else, but a complete fluid change, is what I discribed above,.....I been running Zerex G-05 for over 5 yrs with no issuses of overheating, corrosion, etc,.....I would only recommend something I have performed or practiced on my own vehicles