The two-stroke gasoline engine was once a marvel of engineering, offering up huge doses of power in small and lightweight ...

The 6.7L Cummins diesel engine is known for its power and durability but requires proper maintenance. One often-overlooked part is the CCV (Crankcase Ventilation) filter. Ignoring it can lead to ...

If you're the owner of a 2025 Honda Africa Twin 1100, Rebel 1100, or XL750 Transalp, you'll want to pay attention to the most ...

Every internal combustion engine needs oil for lubrication, but two-stroke engines take their oil regularly along with ...

Although some maintenance schedules include an interval for replacing the positive crankcase ventilation, or PCV, valve, others may not. In the latter case, a general recommendation is to replace ...

If the crankcase pressure is too much, the cap will get blown off. Auto repair shops also have a few quick tests they can run to check for blow-by. Then, since you're already there, ...

A significant part of these on-road emissions used to come from the crankcase — up to 30%, according to a 1962 study — but thanks to changes in engine design, that's no longer true.

A monitoring campaign was conducted in August−September 2005 to compare different experimental approaches quantifying school bus self-pollution. As part of this monitoring campaign, a detailed ...

Keep your car in prime condition with our collection of expert tips on vehicle maintenance and auto repair at Cars.com ...

Air leaking into your car—not out of it—can be a problem. Popular Mechanics’s automotive experts outline the tools and techniques proven to smoke out even the toughest to find vacuum leaks.

Furthermore, a crankcase explosion relief valve must be in compliance with type testing procedures stipulated in IACS UR M66, as incorporated in IACS Members Rules, ensuring they meet the unified ...