A diesel particulate filter is an important, and required, part for any diesel vehicles. Here's what it does and how you can keep it clean, too.

Diesel engines can be complicated, but opinions are divided on whether DPF cleaners work - or are even necessary in the first place.

15 Best Engine Air Filters: One thing you need for peak performance is a good air filter that ensures that only clean and filtered air reaches the engine.

Generally, the higher the MERV rating, the more particles a filter will capture, so filters with a MERV 10 rating or lower may only capture common particles like dust, pollen, and lint.

All less than 1 percent opacity." The allowed limit is 20 percent opacity. The most common contributor to higher percentages is usually the air filter but also sometimes the frequency of oil changes.

Types of Motorcycle Air Filters There are three main types of motorcycle filters: paper filters, foam filters, and cotton filters. Paper filters are the standard stock parts that come with most types ...