• Motorcycle oil filters come in a range of quality.motorcycle image by Bionic Media from Fotolia.com
  
  Not all motorcycle oil filters are created equal. There are some to be avoided, and others worth the slightly higher cost. The components of oil filters vary greatly and affect the quality of the products. Consult your vehicle's owners manual for specific oil filter type recommendations. It is recommended that oil filters on motorcycles be changed every 5,000 miles.
  
  

Filter Element Material

• Most oil filters are made from a paper-like material that includes cellulose and fiberglass. The finer the fibers and closer they are spaced, the more filtration is possible. However, these finer, closer fibers also create greater pressure, which can cause engine problems. Mobil-1 and Pure-One are recommended for their efficiency. Some filters are now being made from a stainless steel micronic filter cloth, such as Scott filters, which are claimed to last for life.
  
  

End Caps

• End caps on quality oil filters are always made from metal and never from cardboard, as it has the potential to disintegrate and pollute the oil. Filters made by Fram, which include Pennzoil, Penske, Castrol and Quaker State, should be avoided, according to the California Scientific website. Purolator, Mobil-1, Amsoil and Bosch all use metal in the production of their end caps.
  
  

Relief Bypass Valves

• Relief bypass valves prevent damage to the engine if an oil filter becomes clogged or is under too much pressure. Be sure your oil filter includes this feature.
  
  

Anti-Drain Back Valve

• This feature is only necessary in horizontally mounted filters. Such valves are made from either silicon or nitrate rubber and block the oil inlets when the engine is off so that dirty oil does not flow back into the oil pan.