I have a few questions on what air filter i should run in my 99 f350. I heard the 6637 Filter Kit is a good one also the AIS Severe Duty Intake Kit FA1759. Any suggestions would be greatly appreciated.
I have a 1997 f250 7.3 liter turbo diesel. This past weekend I received 2 free bottles of Diesel Kleen + Cetane fuel additive. I was wondering if I should use it and I would like to know how good it actually works.