There are certain signs that something has gone seriously awry with your automobile—and one of the most certain of all is the presence of a leak. An oil leak can be especially vexing; what it tells you is that you’ve neglected routine maintenance, and done significant damage to the vehicle. It’s possible to address the problem, of course, but much preferable to avoid it in the first place. Recognizing the Problem Is your car leaking oil? You need to tackle the problem head-on rather than pretending it doesn’t exist. You can spot a leak simply by taking a glance under…