Reviewed By John B (HOPATCONG, NJ) Reviewed for a 2009 Ford F-350 —4/17/2016 5:37 AM
I purchased the K&N filter for my 09 F-350 Diesel. My truck now has increased throttle response and an awesome sound. I highly recommend this filtration system.
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Reviewed By Fernando E (Malibu, CA) Reviewed for a 2009 Ford F-350 —9/25/2012 8:29 AM
Works well. I will probably clean every 10-12,000 miles. Just my preferred standard. I use Mobile 1 Extended Range synthetic that is rated to go 15,000 miles before needing to be changed but, I change it and filter at no more than 7,500 miles. I tow a 12,000 pound fifth wheel travel trailer.