I know that there has been some concern in the past about using oil saturated air filters. Cummings does not recommend them. I finally had a chance to pull the AFE air filter and air inlet tube to the turbo after 1 years use and was real pleased with what I saw. The vanes were clean. The filter was some what dirty. I used compressed air and blew out the filter. Should be good to go for another 20,000 miles. Just thought that I would let you guys know what I found out.
Lynn
Lynn