More than four decades after its invention, cylinder deactivation tech remains a polarizing fuel-efficiency measure for all ...

GM’s headache of an L87 V8 is back on the operating table, and a new teardown has dug up more clues – and maybe even a fix.

Toyota is recalling tens of thousands of its most popular model over an issue that could cause the engine to lose power at ...

Your car suddenly slows to a crawl? Limp mode is your car’s warning that something is wrong. Here's why you should not ignore it.