Last week, Jeff Wilbanks purchased some castaloy product to repair his Mack diesel engine. Jeff really did not have very high expectations for the product but was desperate for a solution. To his surprise, the product worked better than he expected and he was able to save his engine and a fortune! Jeff, being so excited about his success, posted on the Castaloy forum. Just like countless others that purchase this product, he feels it is the best way to repair cast iron. When applying the tips on my Guide to repairing cast iron with Castaloy, it is possible to repair almost any cast iron product.