Nissan KA24DE: Complete Expert Guide to Performance, Reliability, Common Problems & Maintenance

The Nissan KA24DE is a 2.4-liter DOHC inline-4 engine produced from 1991 to 2016, widely recognized as one of the most durable naturally aspirated four-cylinders Nissan ever built. With a cast-iron block, simple non-turbo architecture, and a well-documented lifespan of 300,000+ miles, it remains a practical workhorse — yet its plastic timing chain tensioner, age-related … Read more

Nissan VQ35DE Complete Expert Guide to Performance, Reliability, Common Problems & Maintenance

The Nissan VQ35DE is one of the most celebrated naturally aspirated V6 engines ever built — a 3.5-liter powerplant that won Ward’s 10 Best Engines award 15 times and powered everything from family sedans to iconic sports cars. As of 2026, it remains in production and on the road in millions of vehicles worldwide, praised … Read more

GM 2.2 Ecotec L61/L42 Engine: Complete Expert Guide to Performance, Reliability, Common Problems & Maintenance

Introduction Why is the GM 2.2 Ecotec (L61/L42) engine simultaneously praised for engineering innovation yet notorious for reliability issues? This paradox defines one of General Motors’ most controversial engine platforms—a powerplant that powered millions of compact vehicles across North America and Europe yet remains polarizing among owners and technicians alike. Understanding the L61 and its … Read more