that blows. That's the chance we take with any used engine. Glad you've apparently got it all together. IMO, I know more "soccer moms" who ignorantly change their oil at jiffy lube intervals of 3k, then those who ignorantly do not at all. maybe it's me, but I'd rather have an ex soccer mom engine than a likely previously abused 5.0 mustang engine. 6 of one half a dozen of the other.