I have a question about engine flushing. The other day, I went to my usual mechanic for my 3,000-mile oil change and tire rotation, and he tried to sell me on a "Bilstein Engine Flush." He showed me a ...

That old engine may be tougher than you think — if you treat it right.

So, you’ve heard about engine flushes, right? They promise to clean out all that gunk and sludge that builds up over time. Sounds great, but not all engine flush products are created equal. In fact, ...