Air filter

[tom chelbana]

Just had our first oil analysis done this week too. Had our 500 ISM engine oil checked by JG Lubricant Service and just like you with 12K miles no sign of dusting and another AFE air cleaner engine working great with 100K with a after market serviceable filter. Would recommend all Farr OEM air filter users change their air filters once a year because on internal filter material coming apart and damaging turbo and engines.

[wb7auk]

As Tom stated getting all the information:

K&N states: Our actual air filters when tested generally demonstrate a cumulative filtration efficiency of between 96% and 99%.

A major diesel engine manufacture states : The filter must have a

minimum efficiency of 99.5 %.