WIX recommend the following best practices on air filter maintenance:
• Store replacement filters in a clean, dry and safe location. Be careful in handling the filter box to not let it drop onto a hard surface. Filters can be damaged during handling while still in the box.
• Make sure the housing, ducts, clamps and fasteners are in good working order. Leaks downstream of the filters can allow dirt and other contaminates into the clean air stream.
• Make sure the evacuator valve is functioning properly.
• If so equipped, the air filter pressure sensor will alert to when the maximum restriction is reached.
• Remove the filter carefully so that the contaminants stay in the filter.
• Change the inner air or safety filter on the schedule recommended by the vehicle manufacturer.
• Make sure the filter is properly seated and the clamps, bolts or wing nuts are properly tightened. Do not over tighten plastic wing nuts.
• Older style filters with wing nuts generally come with a replacement sealing washer. Use of a worn washer could cause air to bypass the filter.
• Always follow the instructions provided with the filter.
2) What should fleets consider when they are purchasing aftermarket engine air filters?
First and foremost, buy your filter from a trusted supplier and select a reputable filter manufacturer’s product. Another important point is to make sure the filter is listed in the filter application section of the product catalog. After all, some filter applications require self-extinguishing filter media, also known as fire retardant media. From a warranty standpoint, make sure the filter is backed by an appropriate manufacturer’s warranty, and keep in mind that a factory trained filter representative can assist with recommended product selection and inventory levels, change out periods and proper installation procedures. The bottom line: There’s more than just a filter in a box.
