Lexus is synonymous with reliability, but these five engines prove that even the best make mistakes. See which ones suffer from oil sludge and leaks.

In the six years before the Lexus brand debuted, Toyota spent nearly $1 billion on something called "Circle F" or Project F1 — also known as "Flagship 1." Over 900 experimental engines were produced, ...

Lexus is a car brand that, generally speaking, has long been associated with excellent reliability. The formula of combining European levels of refinement and luxury backed by the reliability of ...