Direct-injection engines were introduced with a promise that sounded ideal: more power, better fuel efficiency, and cleaner ...

Some of the most problematic Toyota truck engines that ever went into production include the 3VZ-E 3.0L V6, 3RZ-FE 2.7L I4, ...

You might have noticed that some gas stations occasionally offer specials on unleaded 88 octane gas—also known as E15—which contains 15 percent ethanol. Ethanol is an alcohol that’s derived from corn.