5 Engines That Stay Quiet at High Miles and 5 That Sound Like Tractors

A quiet engine ranks higher than a noisy one (Credit: Alamy)

Some engines retain their refined sound even after long years of use, while others develop a coarse, agricultural tone as their mileage climbs. The difference between these two categories often comes from design quality, build…

5 Engines with Reinforced Cylinder Walls vs 5 that Scuff Under High Miles

Engine life depends on what’s deep inside the walls (Credit: Getty Images)

Engines that remain dependable after years of use often have one thing in common: they were built to handle stress from the beginning. One of the most critical areas of engine strength lies in the…

5 Cars with Lifetime PCV Systems vs 5 with Clogged Vents Causing Sludge

Long-life PCV systems mean one less thing to worry about (Credit: Getty Images)

Engine ventilation plays a critical role in maintaining internal cleanliness and preventing oil contamination. One important system that handles this function is the Positive Crankcase Ventilation (PCV) system. Designed to manage blow-by gases that escape…