I first used Water Wetter on the rec of Corky at Texas Turbo, a notable house of perfromance here in Dallas. They use it in all the turbo cars they do, and recommend it highly. I put in my 66 GT350 (supercharged) and noticed quite a difference...about 15 degrees, which in Texas is a lot of peace of mind in the summer. I run distilled water and about 10%
antifreeze and the Water Wetter. I have used it in the Cobra since day one, with the same mix. I think you will be very pleased if you follow the directions and use it properly.
WAYNE: Excellent points, but there is no such thing as a 'freeze plug'...which is why you see cracked blocks with CORE plugs still intact. They are there to assist the foundry in casting the block, nothing else. If you ever get a chance, visit a foundry and see this 'sand casting' done, it's fascinating!