Sometimes the simplest, silliest-sounding solutions are salutary. (How's that for a sentence stuffed with syllables that start with sibilants?) A reader wrote in to say that he was having mysterious ...

In your racecar, a cracked block from frozen coolants in the winter isn't usually the problem. Leaking freeze plugs that dump coolant on the track, however, is. If you have a freeze plug work its way ...