Toyota Motor Sales U.S.A. Inc. has reached a tentative agreement to settle a nationwide class action by Toyota and Lexus owners who complained their car engines were damaged by oil sludge. A federal ...

Chrysler's 2.7L LH V6 suffered from oil sludge, cooling failures, and denied warranty claims — here's the full story.

A cracked engine block is generally considered a bad thing for many reasons, but just how can you tell whether or not your block is broken?

Engine oil is the lifeblood of your engine. It lubricates moving parts, reduces friction, carries away heat, and cleans ...