Forbes contributors publish independent expert analyses and insights. Jim Gorzelany is a veteran automotive journalist. You’ll usually know when it’s time to take your car, truck or sport-utility ...

Restore power and performance with Bar’s Leaks High Mileage Engine Repair Six Fixes in One Bottle for High-Mileage Engines ...

Join us as we tackle a challenging smoke problem with a custom-built 2-stroke engine. In this video, we carefully prepare the ...

Your engine is simpler than you think and only four things separate it from becoming a good-for-nothing lump of aluminum: fuel, air, spark and compression. Smoke billowing from the back of your hoopty ...

Problems occurring with new cars and their powertrains are nothing new. Just a quick search on the internet for EcoBoost engine reliability problems, or Honda's 3.5-liter V6 crankshaft problem — which ...

According to the 2025 J.D. Power Vehicle Dependability Study (VDS), Subaru is ranked as the 17th most reliable brand out there. This represents a somewhat worse result compared to 2024's VDS in which ...

Problem rates for heavy-duty truck engines manufactured with emissions controls implemented in 2004 and 2007 are nearly twice as high, on average, as rates for engines built prior to these emission ...

Over the course of its lifetime, a vehicle with an unreliable engine could end up costing drivers a small fortune in maintenance. In fact, according to J.D. Power, a typical engine replacement could ...

Harley-Davison motorcycles are known for their use of big V-twin engines. The company's proprietary engine design has come a long way since the introduction of the first 49.5 cubic-inch version in ...