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.